Subjects -> EDUCATION (Total: 2411 journals)
    - ADULT EDUCATION (24 journals)
    - COLLEGE AND ALUMNI (10 journals)
    - E-LEARNING (38 journals)
    - EDUCATION (2043 journals)
    - HIGHER EDUCATION (158 journals)
    - INTERNATIONAL EDUCATION PROGRAMS (4 journals)
    - ONLINE EDUCATION (42 journals)
    - SCHOOL ORGANIZATION (14 journals)
    - SPECIAL EDUCATION AND REHABILITATION (40 journals)
    - TEACHING METHODS AND CURRICULUM (38 journals)

EDUCATION (2043 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 857 Journals sorted alphabetically
#Tear : Revista de Educação, Ciência e Tecnologia     Open Access   (Followers: 1)
(Pensamiento), (palabra) y obra     Open Access   (Followers: 2)
21. Yüzyılda Eğitim Ve Toplum Eğitim Bilimleri Ve Sosyal Araştırmalar Dergisi     Open Access  
21st Century Pedagogy     Open Access   (Followers: 5)
Abant İzzet Baysal Üniversitesi Eğitim Fakültesi Dergisi     Open Access  
ABDIMAS ALTRUIS : Jurnal Pengabdian Kepada Masyarakat     Open Access  
Abdimas Toddopuli : Jurnal Pengabdian Pada Masyarakat     Open Access  
About Campus     Hybrid Journal   (Followers: 7)
Academic Medicine     Hybrid Journal   (Followers: 74)
Academic Psychiatry     Full-text available via subscription   (Followers: 27)
Academy of Educational Leadership Journal     Full-text available via subscription   (Followers: 53)
Academy of Management Learning and Education     Full-text available via subscription   (Followers: 57)
Accounting & Finance     Hybrid Journal   (Followers: 30)
Accounting Education: An International Journal     Hybrid Journal   (Followers: 13)
ACM Transactions on Computing Education (TOCE)     Hybrid Journal   (Followers: 7)
Acta Científica : Ciências Humanas     Open Access  
Acta Didactica Norge     Open Access   (Followers: 2)
Acta Educationis Generalis     Open Access  
Acta Paedagogica Vilnensia     Open Access  
Acta Scientiarum. Education     Open Access  
Action in Teacher Education     Hybrid Journal   (Followers: 61)
Action Learning: Research and Practice     Hybrid Journal   (Followers: 44)
Actualidades Pedagógicas     Open Access  
Adelphi series     Hybrid Journal   (Followers: 13)
Adiyaman University Journal of Educational Sciences     Open Access  
Administração Educacional     Open Access  
Advanced Education     Open Access   (Followers: 11)
Advances in Arts, Social Sciences and Education Research     Open Access   (Followers: 16)
Advances in Building Education     Open Access   (Followers: 4)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 33)
Advances in High Energy Physics     Open Access   (Followers: 22)
Advances in School Mental Health Promotion     Partially Free   (Followers: 7)
Africa Education Review     Hybrid Journal   (Followers: 26)
African Journal of Chemical Education     Open Access   (Followers: 5)
African Journal of Educational Studies in Mathematics and Sciences     Full-text available via subscription   (Followers: 7)
African Journal of Health Professions Education     Open Access   (Followers: 5)
African Journal of Research in Mathematics, Science and Technology Education     Hybrid Journal   (Followers: 11)
African Journal of Teacher Education     Open Access   (Followers: 4)
Agora     Full-text available via subscription   (Followers: 3)
AGORA Magazine     Open Access   (Followers: 1)
Ahmad Dahlan Journal of English Studies     Open Access   (Followers: 2)
AIDS Education and Prevention     Full-text available via subscription   (Followers: 8)
Ainedidaktiikka     Open Access  
Akademos     Open Access   (Followers: 2)
AKSIOMATIK : Jurnal Penelitian Pendidikan dan Pembelajaran Matematika     Open Access  
Aksis : Jurnal Pendidikan Bahasa dan Sastra Indonesia     Open Access  
Al-Athfaal : Jurnal Ilmiah Pendidikan Anak Usia Dini     Open Access  
Al-Bahith Journal     Open Access  
Al-Idarah : Jurnal Kependidikan Islam     Open Access  
Al-Jabar : Jurnal Pendidikan Matematika     Open Access  
Al-Mudarris : Journal of Education     Open Access   (Followers: 2)
Al-Tadris : Jurnal Pendidikan Bahasa Arab     Open Access  
Al-Tadzkiyyah : Jurnal Pendidikan Islam     Open Access  
Al-Tanzim : Jurnal Manajemen Pendidikan Islam     Open Access  
Al.Qadisiya journal for the Sciences of Physical Education     Open Access  
Alberta Journal of Educational Research     Full-text available via subscription   (Followers: 1)
Aldaba     Open Access  
Alexandria : Revista de Educação em Ciência e Tecnologia     Open Access  
Alotrop     Open Access  
Alsic : Apprentissage des Langues et Systèmes d'Information et de Communication     Open Access   (Followers: 12)
Alteridad     Open Access  
Ambiente & Educação : Revista de Educação Ambiental     Open Access  
American Annals of the Deaf     Full-text available via subscription   (Followers: 13)
American Journal of Business Education     Open Access   (Followers: 14)
American Journal of Distance Education     Hybrid Journal   (Followers: 30)
American Journal of Education     Full-text available via subscription   (Followers: 162)
American Journal of Educational Research     Open Access   (Followers: 55)
American Journal of Health Education     Hybrid Journal   (Followers: 35)
American Journal of Physics     Full-text available via subscription   (Followers: 57)
Ana Dili Eğitimi Dergisi / Journal of Mother Tongue Education     Open Access   (Followers: 1)
ANALES de la Universidad Central del Ecuador     Open Access   (Followers: 1)
Anargya : Jurnal Ilmiah Pendidikan Matematika     Open Access  
Annales Universitatis Mariae Curie-Sklodowska, sectio N – Educatio Nova     Open Access  
Annali dell'Universita di Ferrara     Hybrid Journal  
Annals of Dyslexia     Hybrid Journal   (Followers: 9)
Annals of Modern Education     Full-text available via subscription   (Followers: 5)
Antistasis : An Open Educational Journal     Open Access   (Followers: 1)
Anuario Pilquen : Sección Divulgación Científica     Open Access  
Apertura. Revista de innovación educativa‏     Open Access   (Followers: 1)
Ápice : Revista de Educación Científica     Open Access  
Applied Environmental Education & Communication     Hybrid Journal   (Followers: 15)
Applied Measurement in Education     Hybrid Journal   (Followers: 11)
Aprender     Open Access  
AR-RIAYAH : Jurnal Pendidikan Dasar     Open Access  
Arabia     Open Access   (Followers: 1)
Arabiyatuna : Jurnal Bahasa Arab     Open Access   (Followers: 1)
Archivos de Ciencias de la Educación     Open Access   (Followers: 1)
Areté, Revista Digital del Doctorado en Educación de la Universidad Central de Venezuela     Open Access  
Arrancada     Open Access  
Ars Educandi     Open Access  
Art Design & Communication in Higher Education     Hybrid Journal   (Followers: 22)
Art Education     Hybrid Journal  
Arts Education Policy Review     Hybrid Journal   (Followers: 4)
Artseduca : Revista electrónica de educación en las ARTES     Open Access  
ASHE Higher Education Reports     Hybrid Journal   (Followers: 18)
Asia Pacific Education Review     Hybrid Journal   (Followers: 12)
Asia Pacific Journal of Education     Hybrid Journal   (Followers: 20)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 15)
Asia-Pacific Journal of Teacher Education     Hybrid Journal   (Followers: 27)
Asia-Pacific Science Education     Open Access   (Followers: 1)
Asian Association of Open Universities Journal     Open Access   (Followers: 1)
Asian Education and Development Studies     Hybrid Journal   (Followers: 5)
Asian Journal of Distance Education     Open Access   (Followers: 2)
Asian Journal of Education and Social Studies     Open Access   (Followers: 1)
Asian Journal of English Language Teaching     Full-text available via subscription   (Followers: 16)
Asian-Pacific Journal of Second and Foreign Language Education     Open Access   (Followers: 5)
ASp     Open Access  
Assessing Writing     Hybrid Journal   (Followers: 16)
Assessment & Evaluation in Higher Education     Hybrid Journal   (Followers: 125)
Assessment in Education: Principles, Policy & Practice     Hybrid Journal   (Followers: 43)
Assessment Update     Hybrid Journal   (Followers: 5)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 3)
At-Ta'dib Jurnal Kependidikan Islam     Open Access  
At-Taqaddum     Open Access  
At-Turats     Open Access  
ATENA Didaktik     Open Access  
Athenea Digital     Open Access  
ATIKAN : Jurnal Kajian Pendidikan (Journal of Educational Studies)     Open Access  
Aula Abierta     Open Access  
Aula de Encuentro     Open Access  
Australasian Journal of Educational Technology     Open Access   (Followers: 14)
Australasian Journal of Engineering Education     Hybrid Journal   (Followers: 3)
Australasian Journal of Gifted Education     Full-text available via subscription   (Followers: 5)
Australian Art Education     Full-text available via subscription   (Followers: 6)
Australian Educational Researcher     Hybrid Journal   (Followers: 29)
Australian Journal of Adult Learning     Full-text available via subscription   (Followers: 13)
Australian Journal of Dyslexia and Other Learning Difficulties     Full-text available via subscription   (Followers: 7)
Australian Journal of Environmental Education     Full-text available via subscription   (Followers: 9)
Australian Journal of Indigenous Education, The     Full-text available via subscription   (Followers: 13)
Australian Journal of Learning Difficulties     Hybrid Journal   (Followers: 7)
Australian Journal of Music Education     Full-text available via subscription   (Followers: 6)
Australian Journal of Public Administration     Hybrid Journal   (Followers: 230)
Australian Journal of Teacher Education     Open Access   (Followers: 28)
Australian Mathematics Teacher, The     Full-text available via subscription   (Followers: 7)
Australian Primary Mathematics Classroom     Full-text available via subscription   (Followers: 4)
Australian Screen Education     Full-text available via subscription   (Followers: 2)
Australian TAFE Teacher     Full-text available via subscription   (Followers: 4)
Australian Universities' Review, The     Full-text available via subscription   (Followers: 4)
Azalea: Journal of Korean Literature & Culture     Full-text available via subscription   (Followers: 3)
Bahastra     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 2)
Baltic Journal of Career Education and Management     Open Access  
Barn : Forskning om barn og barndom i Norden     Open Access  
Basastra : Jurnal Bahasa, Sastra, dan Pengajarannya     Open Access  
BC TEAL Journal     Open Access  
Becoming : Journal of the Georgia Middle School Association     Open Access  
Behavioural Sciences Undergraduate Journal     Open Access   (Followers: 1)
BELAJEA : Jurnal Pendidikan Islam     Open Access  
BELIA : Early Childhood Education Papers     Open Access   (Followers: 8)
Berkeley Review of Education     Open Access   (Followers: 10)
Biblioteca Escolar em Revista     Open Access  
Biblioteka i Edukacja     Open Access   (Followers: 4)
Bio-Lectura     Open Access  
BIODIK : Jurnal Ilmiah Pendidikan Biologi     Open Access  
Bioedukasi : Jurnal Pendidikan Biologi FKIP UM Metro     Open Access   (Followers: 1)
Bioeduscience     Open Access  
Bioma : Jurnal Ilmiah Biologi     Open Access  
Biomedical Engineering Education     Hybrid Journal  
Biosfer : Jurnal Biologi dan Pendidikan Biologi     Open Access  
Biosfer : Jurnal Tadris Biologi     Open Access  
BISE : Jurnal Pendidikan Bisnis dan Ekonomi     Open Access  
Biuletyn Historii Wychowania     Open Access  
BMC Medical Education     Open Access   (Followers: 46)
Boletim Cearense de Educação e História da Matemática     Open Access  
Boletim Técnico do Senac     Open Access  
Bordón : Revista de Pedagogía     Open Access  
British (Jurnal Bahasa dan Sastra Inggris)     Open Access  
British Educational Research Journal     Hybrid Journal   (Followers: 158)
British Journal of Educational Studies     Hybrid Journal   (Followers: 128)
British Journal of Educational Technology     Hybrid Journal   (Followers: 94)
British Journal of Music Education     Hybrid Journal   (Followers: 18)
British Journal of Religious Education     Hybrid Journal   (Followers: 7)
British Journal of Sociology of Education     Hybrid Journal   (Followers: 57)
British Journal of Special Education     Hybrid Journal   (Followers: 43)
Brock Education : A Journal of Educational Research and Practice     Open Access  
Brookings Trade Forum     Full-text available via subscription   (Followers: 4)
Buckingham Journal of Education     Open Access   (Followers: 7)
Bulletin De L' Association Thaïlandaise Des Professeurs de Français     Open Access  
Business, Management and Education     Open Access   (Followers: 17)
Caderno Brasileiro de Ensino de Física     Open Access  
Caderno de Educação     Open Access  
Caderno Intersaberes     Open Access  
Cadernos de Educação     Open Access  
Cadernos de Estudos e Pesquisa na Educação Básica     Open Access  
Cadernos de Pesquisa     Open Access  
Cadernos de Pesquisa em Educação     Open Access  
Cadmo     Full-text available via subscription  
Cahiers de la recherche sur l'éducation et les savoirs     Open Access   (Followers: 3)
Cakrawala Pendidikan     Open Access  
Calidad en la educación     Open Access   (Followers: 1)
Cambridge Journal of Education     Hybrid Journal   (Followers: 69)
Campbell Systematic Reviews     Open Access   (Followers: 4)
Campus Legal Advisor     Hybrid Journal   (Followers: 2)
Campus Security Report     Hybrid Journal   (Followers: 1)
Canadian and International Education     Open Access   (Followers: 9)
Canadian Journal for New Scholars in Education/ Revue canadienne des jeunes chercheures et chercheurs en éducation     Open Access   (Followers: 7)
Canadian Journal for the Scholarship of Teaching and Learning     Open Access   (Followers: 18)
Canadian Journal for the Study of Adult Education     Open Access   (Followers: 1)
Canadian Journal of Education : Revue canadienne de l'éducation     Open Access   (Followers: 11)
Canadian Journal of Educational Administration and Policy     Open Access  

        1 2 3 4 5 6 7 8 | Last

Similar Journals
Journal Cover
Advances in High Energy Physics
Journal Prestige (SJR): 0.866
Citation Impact (citeScore): 2
Number of Followers: 22  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1687-7357 - ISSN (Online) 1687-7365
Published by Hindawi Homepage  [343 journals]
  • Role of Focusing Distance in Picosecond Laser-Induced Cu Plasma Spectra

    • Abstract: To study the effects of focusing distance on the characteristics of copper plasma, a picosecond laser is utilized to ablate a pure copper plate to generate a plasma spectrum. Following numerous experiments on the subject, three significant factors are determined: lens focal length, pulse energy, and the lens-to-sample distance. These factors are employed to analyze the spectral intensity, plasma temperature, and electron density in the local thermodynamic equilibrium (LTE) and optically thin condition. Due to the shielding effects of mixed plasma, the strongest spectral intensity is achieved in the prefocused case, no matter how much beam irradiance is employed. The more intensive the beam irradiance is, the more the optimal position is distant from the focal point. The variation of plasma temperature and electron density showed a peak in the prefocused case, which is consistent with the trend of spectral intensity. For the case of extremely high irradiance (on the focus), the shielding effects become seriously, and the resultant above three factors decreased sharply. When a longer-focal-length lens is employed, the spectral intensity exhibited an obvious bimodal trend. In the prefocused case, a longer-focal-length lens is helpful to eliminate the effects of the roughness of the target surface compared with a shorter one. Finally, the assumed LTE is validated by McWhirter relation, plasma relaxation time, and diffusion length, and the optically thin condition was also validated by spectral intensity ratio. We hope that this work could be an important reference for the future design of highly optimized experiments for Calibration-Free Laser-Induced Breakdown Spectroscopy (CF-LIBS).
      PubDate: Tue, 25 Jan 2022 07:20:02 +000
       
  • Interaction of Anisotropic Dark Energy with Generalized Hybrid Expansion
           Law

    • Abstract: Interaction of dark energy in the anisotropic locally rotationally symmetric (LRS) Bianchi type-I metric is investigated in the context of modified theory of gravity, where is the Ricci scalar and is the trace of stress energy momentum tensor. We choose the particular form of the functional ; then, we find the exact solutions of the field equations by applying inhomogeneous equation of state, , and a generalized form of hybrid expansion law. The transition of deceleration to acceleration is observed in this model. It is also observed that the universe shows accelerated expansion at late epoch. The derived model overlaps with at late time which is in agreement with present observation. Energy conditions of the derived model are also investigated. From the plot, we observe the age of universe for the observed . The physical and geometrical behaviours of these models are also discussed.
      PubDate: Thu, 20 Jan 2022 05:05:02 +000
       
  • The Information-Theoretic Treatment of Spinless Particles with the
           Assorted Diatomic Molecular Potential

    • Abstract: The relativistic solutions of the Klein-Gordon equation comprising an interaction of the generalized inversely quadratic Yukawa potential mixed linearly with the hyperbolic Schiöberg molecular potential is achieved employing the idea of parametric Nikiforov-Uvarov and the Greene-Aldrich approximation scheme. The energy spectra and the corresponding normalized wave functions are derived regarding the hypergeometric function in a closed form for arbitrary -state. Numerical results of the energy eigenvalue are proposed. Moreover, special circumstances of this potential are reviewed, and their energy eigenvalues were assessed. Subsequently, the Tsallis entropy and Rényi entropy both in position and momentum spaces are defined under the desired potential. The impacts of these entropies on the angular momentum quantum number are explored in detail.
      PubDate: Tue, 18 Jan 2022 07:35:00 +000
       
  • Two-to-Two Processes at an Electron-Muon Collider

    • Abstract: Based on a recent proposal to build an electron-muon collider, we study two-to-two production processes , that originate from dimension 6 and 8 operators. We compare the sensitivity to those effective couplings obtained at the collider with that of low energy measurements of ,, and conversion that have recently been reported in the literature. Whereas for the production of first family fermions, the sensitivity of the collider processes is much weaker; for the second and third family fermions, it is similar or stronger than that of low-energy processes. In the case of , the sensitivity to a dimension 8 contact operator turns out to be the strongest in comparison.
      PubDate: Mon, 17 Jan 2022 05:20:01 +000
       
  • Corrigendum to “Coherent Elastic Neutrino-Nucleus Scattering as a
           Precision Test for the Standard Model and Beyond: The COHERENT Proposal
           Case”

    • PubDate: Mon, 10 Jan 2022 14:35:01 +000
       
  • Nonequilibrium Black Hole Thermodynamics in Anti-de Sitter Spacetime

    • Abstract: This work discusses the black hole thermodynamics in a weak dynamical Anti-de Sitter spacetime, which should be described by the nonequilibrium thermodynamics, because the metric depends on the time coordinate. Taking the Vaidya-Anti-de Sitter black hole spacetime as an example, the local entropy balance equations and principle of minimum entropy generation are derived, and finally, some irreversible effects in nonequilibrium thermodynamics are studied by using the Onsager reciprocal relation.
      PubDate: Tue, 28 Dec 2021 08:35:04 +000
       
  • Assignments of the ,,, and Based on the QCD Sum Rules

    • Abstract: In this article, we take into account our previous calculations based on the QCD sum rules, and tentatively assign the as the tetraquark molecular state or tetraquark state with the , and assign the and as the 1S and 2S tetraquark states, respectively, with the . Then, we extend our previous works to investigate the LHCb’s new tetraquark candidate as the first radial excited state of the with the QCD sum rules and obtain the mass , which is in very good agreement with the experimental value . Furthermore, we investigate the two-meson scattering state contributions in details and observe that the two-meson scattering states alone cannot saturate the QCD sum rules, the contributions of the tetraquark states play an unsubstitutable role, and we can saturate the QCD sum rules with or without the two-meson scattering states.
      PubDate: Mon, 20 Dec 2021 09:35:00 +000
       
  • Strangeness Enhancement at LHC Energies Using the Thermal Model and
           EPOSLHC Event Generator

    • Abstract: The strangeness enhancement signature of QGP formation at LHC energies is carefully tackled in the present study. Based on HRG, the particle ratios of mainly strange and multistrange particles are studied at energies from lower up to 13 TeV. The strangeness enhancement clearly appeared at more high energies, and the ratios are confronted to the available experimental data. The particle ratios are also studied using the Cosmic Ray Monte Carlo (CRMC) interface model with its two different event generators, namely, EPOS 1.99 and EPOSlhc, which show a good agreement with the model calculations at the whole range of the energy. We utilize them to produce some particles ratios. EPOS 1.99 is used to estimate particle ratios at lower energies from AGS up to the Relativistic Heavy Ion Collider (RHIC) while EPOSlhc is used at LHC energies. The production of kaons and lambda particles is studied in terms of the mean multiplicity in p-p collisions at energies ranging from 4 to 26 GeV. We find that both HRG model and the used event generators, EPOS 1.99 and EPOSlhc, can describe the particle ratios very well. Additionally, the freeze-out parameters are estimated for different collision systems, such as p-p and Pb-Pb, at LHC energies using both models.
      PubDate: Thu, 16 Dec 2021 09:35:03 +000
       
  • Relativistic Quantum Motion of an Electron in Spinning Cosmic String
           Spacetime in the Presence of Uniform Magnetic Field and Aharonov-Bohm
           Potential

    • Abstract: In this manuscript, we study the relativistic quantum mechanics of an electron in external fields in the spinning cosmic string spacetime. We obtain the Dirac equation and write the first- and second-order equations from it, and then, we solve these equations for bound states. We show that there are bound state solutions for the first-order equation Dirac. For the second-order equation, we obtain the corresponding wave functions, which depend on the Kummer functions. Then, we determine the energies of the particle. We examine the behavior of the energies as a function of the physical parameters of the model, such as rotation, curvature, magnetic field, Aharonov-Bohm flux, and quantum numbers. We find that, depending on the values of these parameters, there are energy nonpermissible levels.
      PubDate: Fri, 26 Nov 2021 11:20:02 +000
       
  • Motion of Charged Spinning Particles in a Unified Field

    • Abstract: Using a geometry wider than Riemannian one, the parameterized absolute parallelism (PAP) geometry, we derived a new curve containing two parameters. In the context of the geometrization philosophy, this new curve can be used as a trajectory of charged spinning test particle in any unified field theory constructed in the PAP space. We show that imposing certain conditions on the two parameters, the new curve can be reduced to a geodesic curve giving the motion of a scalar test particle or/and a modified geodesic giving the motion of neutral spinning test particle in a gravitational field. The new method used for derivation, the Bazanski method, shows a new feature in the new curve equation. This feature is that the equation contains the electromagnetic potential term together with the Lorentz term. We show the importance of this feature in physical applications.
      PubDate: Thu, 25 Nov 2021 04:50:00 +000
       
  • Earth-Skimming Ultrahigh Energy Tau Neutrinos Simulated with Monte Carlo
           Method and CONEX Code

    • Abstract: This paper is aimed at studying the feasibility of building an Earth-skimming cosmic tau neutrinos detector, with the aim of eventually identifying the ideal dimensions of a natural site mountain-valley for the detection of very high energy neutrinos tau range from to , as well as possibly locate one such site in Algeria. First, a Monte Carlo simulation of the neutrino-[mountain] matter interaction as well as the resulting decay of the tau lepton is conducted to determine the optimal dimensions of the mountain as well as the location of the tau decay in the valley. Second, a CORSIKA (COsmic Ray Simulation for KAscade) simulation with the CONEX option is conducted to track the evolution of the almost horizontal air shower initiated by the tau lepton. Many particles are produced, which are part of the shower components: electrons, muons, gammas, pions, etc. The study of the spatial distribution of these particles enables the discovery of the optimal width of the valley, and consequently, the distance at which to lay the detection network.
      PubDate: Thu, 18 Nov 2021 08:05:02 +000
       
  • Physical Attributes of Bardeen Stellar Structures in Gravity

    • Abstract: The main aim of our study is to explore some relativistic configurations of compact object solution in the background of gravity, by adopting the Krori-Barua spacetime. In this regard, we establish the field equations for spherically symmetric spacetime along with charged anisotropic matter source by assuming the specific form of the metric potentials, i.e., and . Further, to calculate the constant values, we consider the Bardeen model as an exterior spacetime at the surface boundary. To ensure the viability of the gravity model, the physical characteristics including energy density, pressure components, energy bonds, equilibrium condition, Herrera cracking concept, mass-radius relation, and adiabatic index are analyzed in detail. It is observed that all the outcomes by graphical exploration and tabular figures show that the Bardeen black hole model describes the physically realistic stellar structures.
      PubDate: Wed, 17 Nov 2021 10:35:00 +000
       
  • Current-Component Independent Transition Form Factors for Semileptonic and
           Rare Decays in the Light-Front Quark Model

    • Abstract: We investigate the exclusive semileptonic and rare decays within the standard model together with the light-front quark model (LFQM) constrained by the variational principle for the QCD-motivated effective Hamiltonian. The form factors are obtained in the frame and then analytically continue to the physical timelike region. Together with our recent analysis of the current-component independent form factors for the semileptonic decays, we present the current-component independent tensor form factor for the rare decays to make the complete set of hadronic matrix elements regulating the semileptonic and rare decays in our LFQM. The tensor form factor are obtained from two independent sets of the tensor current . As in our recent analysis of , we show that obtained from the two different sets of the current components gives the identical result in the valence region of the frame without involving the explicit zero modes and the instantaneous contributions. The implications of the zero modes and the instantaneous contributions are also discussed in comparison between the manifestly covariant model and the standard LFQM. In our numerical calculations, we obtain the -dependent form factors () for and branching ratios for the semileptonic decays. Our results show in good agreement with the available experimental data as well as other theoretical model predictions.
      PubDate: Mon, 15 Nov 2021 12:35:01 +000
       
  • Reparameterization Invariant Model of a Supersymmetric System: BRST and
           Supervariable Approaches

    • Abstract: We carry out the Becchi-Rouet-Stora-Tyutin (BRST) quantization of the one -dimensional (1D) model of a free massive spinning relativistic particle (i.e., a supersymmetric system) by exploiting its classical infinitesimal and continuous reparameterization symmetry transformations. We use the modified Bonora-Tonin (BT) supervariable approach (MBTSA) to BRST formalism to obtain the nilpotent (anti-)BRST symmetry transformations of the target space variables and the (anti-)BRST invariant Curci-Ferrari- (CF-) type restriction for the 1D model of our supersymmetric (SUSY) system. The nilpotent (anti-)BRST symmetry transformations for other variables of our model are derived by using the (anti-)chiral supervariable approach (ACSA) to BRST formalism. Within the framework of the latter, we have shown the existence of the CF-type restriction by proving the (i) symmetry invariance of the coupled Lagrangians and (ii) the absolute anticommutativity property of the conserved (anti-)BRST charges. The application of the MBTSA to a physical SUSY system (i.e., a 1D model of a massive spinning particle) is a novel result in our present endeavor. In the application of ACSA, we have considered only the (anti-)chiral super expansions of the supervariables. Hence, the observation of the absolute anticommutativity of the (anti-)BRST charges is a novel result. The CF-type restriction is universal in nature as it turns out to be the same for the SUSY and non-SUSY reparameterization (i.e., 1D diffeomorphism) invariant models of the (non-)relativistic particles.
      PubDate: Wed, 10 Nov 2021 10:50:02 +000
       
  • Study of Decays in the PQCD Factorization Approach with Lattice QCD Input

    • Abstract: In this paper, we studied systematically the semileptonic decays with by using the perturbative QCD (PQCD) and the “PQCD+Lattice” factorization approach, respectively. We first evaluated all relevant form factors in the low- region using the PQCD approach, and we also took the available lattice QCD results at the high- region as additional input to improve the extrapolation of from the low- region to the endpoint . We then calculated the branching ratios and many other physical observables ,,, and and the clean angular observables and . From our studies, we find the following points: (a) the PQCD and “PQCD+Lattice” predictions of are about , which agree well with the LHCb measured values and the QCD sum rule prediction within still large errors; (b) we defined and calculated the ratios of the branching ratios and ; (c) the PQCD and “PQCD+Lattice” predictions of the longitudinal polarization , the CP-averaged angular coefficients , and the CP asymmetry angular coefficients agree with the LHCb measurements in all considered bins within the still large experimental errors; and (d) for those currently still unknown observables , and , we suggest LHCb and Belle-II Collaboration to measure them in their experiments.
      PubDate: Tue, 09 Nov 2021 11:20:01 +000
       
  • A Relativistic Compact Stellar Model of Anisotropic Quark Matter Mixed
           with Dark Energy

    • Abstract: The possibility of strange stars mixed with dark energy to be one of the candidates for dark energy stars is the main issue of the present study. Our investigation shows that quark matter atcs as dark energy after a certain yet unknown critical condition inside the quark stars. Our proposed model reveals that strange stars mixed with dark energy feature a physically acceptable stable model and mimic characteristics of dark energy stars. The plausible connections are shown through the mass-radius relation as well as the entropy and temperature. We particularly note that a two-fluid distribution is a major reason for the anisotropic nature of the spherical stellar system.
      PubDate: Mon, 08 Nov 2021 12:50:01 +000
       
  • Christ–Lee Model: (Anti-)chiral Supervariable Approach to BRST
           Formalism

    • Abstract: We derive the off-shell nilpotent of order two and absolutely anticommuting Becchi-Rouet-Stora-Tyutin (BRST), anti-BRST, and (anti-)co-BRST symmetry transformations for the Christ–Lee (CL) model in one -dimension (1D) of spacetime by exploiting the (anti-)chiral supervariable approach (ACSA) to BRST formalism where the quantum symmetry (i.e., (anti-)BRST along with (anti-)co-BRST) invariant quantities play a crucial role. We prove the nilpotency and absolute anticommutativity properties of the (anti-)BRST along with (anti-)co-BRST conserved charges within the scope of ACSA to BRST formalism where we take only one Grassmannian variable into account. We also show the (anti-)BRST and (anti-)co-BRST invariances of the Lagrangian within the scope of ACSA.
      PubDate: Thu, 28 Oct 2021 06:05:01 +000
       
  • Investigation of Baryons in the Hypercentral Quark Model

    • Abstract: In the present study, we consider baryons as three-body bound systems according to the hypercentral constituent quark model in configuration space and solve the three-body Klein-Gordon equation. Then, we analyze perturbative spin-dependent and isospin-dependent interaction effects. To find the analytical solution, we use screened potential and calculate the eigenfunctions and eigenvalues of some baryons. We consider exclusive semileptonic decays of bottom and charm baryons and apply the differential decay width with the Isgur-Wise function and arrive at the rates for some semileptonic baryon decays. The results prove more enhanced compared to recent works and comply well with the experimental data.
      PubDate: Thu, 21 Oct 2021 03:05:00 +000
       
  • Event-by-Event Particle Ratio Fluctuations at LHC Energies

    • Abstract: A Monte Carlo study of identified particle ratio fluctuations at LHC energies is carried out in the framework of HIJING model using the fluctuation variable . The simulated events for Pb-Pb collisions at and 5.02 TeV and Xe-Xe collisions at are analyzed. From this study, it is observed that the values of ,, and follow the similar trends of energy dependence as observed in the most central collision data by NA49, STAR, and ALICE experiments. It is also observed that for all the three combinations of particles for semicentral and central collisions, the model predicted values of for Pb-Pb collisions at agree fairly well with those observed in the ALICE experiment. For peripheral collisions, however, the model predicted values of are somewhat smaller, whereas for and it predicts larger values as compared to the corresponding experimental values. The possible reasons for the observed differences are discussed. The values scaled with charged particle density when plotted against exhibit a flat behaviour, as expected from the independent particle emission sources. For and combinations, a departure from the flat trend is, however, observed in central collisions in the case of low window when the effect of jet quenching or resonances is considered. Furthermore, the study of dependence on particle density for various collision systems (including proton-proton collisions) suggests that at LHC energies values for a given particle pair are simply a function of charged particle density, irrespective of system size, beam energy, and collision centrality.
      PubDate: Tue, 12 Oct 2021 08:20:01 +000
       
  • Determination of Position Resolution for LYSO Scintillation Crystals Using
           Geant4 Monte Carlo Code

    • Abstract: LYSO scintillation crystals, due to their significant characteristics such as high light yield, fast decay time, small Moliére radius, and good radiation hardness, are proposed to be used for the electromagnetic calorimeter section of the Turkish Accelerator Center Particle Factory (TAC-PF) detector. In this work, the center of gravity technique was used to determine the impact coordinates of an electron initiating an electromagnetic shower in a LYSO array, in a calorimeter module containing nine crystals, each in cross-section and 200 mm in length. The response of the calorimeter module has been studied with electrons having energies in the range 0.1 GeV-2 GeV. By using the Monte Carlo simulation based on Geant4, the two-dimensional position resolution of the module is obtained as at the center of the crystal.
      PubDate: Wed, 15 Sep 2021 02:20:00 +000
       
  • Study of the Ground-State Energies of Some Nuclei Using Hybrid Model

    • Abstract: The quark-quark (QQ) interaction as a perturbed term to the nucleon-nucleon interaction (NN) without any coupling between them is studied in a hybrid model. This model is used to calculate the ground-state energies of 2H1 and 4He2 nuclei. In a semirelativistic framework, this model is encouraged for light nuclei and the instanton-induced interaction by using the QQ potential and the NN interaction for a small scale around the hadron boundaries. This hybrid model depends on two theories, the one-boson exchange potential (OBEP) and the Cornell-dressed potential (CDP) for QQ. A small effect of quark-quark interaction is obtained on the values of the ground-state energies, around 6.7 and 1.2 percentage for 2H1 and 4He2, respectively nuclei.
      PubDate: Mon, 06 Sep 2021 02:05:01 +000
       
  • Superstring Backgrounds in String Geometry

    • Abstract: String geometry theory is a candidate of the nonperturbative formulation of string theory. In order to determine the string vacuum, we need to clarify how superstring backgrounds are described in string geometry theory. In this paper, we show that all the type IIA, IIB, SO(32) type I, and SO(32) and heterotic superstring backgrounds are embedded in configurations of the fields of a single string geometry model. In particular, we show that the configurations satisfy the equations of motion of the string geometry model in if and only if the embedded string backgrounds satisfy the equations of motion of the supergravities, respectively. This means that classical dynamics of the string backgrounds are described as a part of classical dynamics in string geometry theory. Furthermore, we define an energy of the configurations in the string geometry model because they do not depend on the string geometry time. A string background can be determined by minimizing the energy.
      PubDate: Tue, 17 Aug 2021 11:05:03 +000
       
  • Particle Production in Small and Large Systems at High-Energy and
           High-Density Frontiers

    • PubDate: Sun, 15 Aug 2021 17:28:06 +000
       
  • An Effective Model for Glueballs and Dual Superconductivity at Finite
           Temperature

    • Abstract: The glueballs lead to gluon and QCD monopole condensations as by-products of color confinement. A color dielectric function coupled with a Abelian gauge field is properly defined to mediate the glueball interactions at confining regime after spontaneous symmetry breaking (SSB) of the gauge symmetry. The particles are expected to form through the quark-gluon plasma (QGP) hadronization phase where the free quarks and gluons start clamping together to form hadrons. The QCD-like vacuum , confining potential , string tension , penetration depth , superconducting and normal monopole densities (), and the effective masses ( and ) will be investigated at finite temperature . We also calculate the strong “running” coupling and subsequently the QCD -function. The dual superconducting nature of the QCD vacuum will be investigated based on monopole condensation.
      PubDate: Tue, 10 Aug 2021 15:43:42 +000
       
  • Charmonium Properties Using the Discrete Variable Representation (DVR)
           Method

    • Abstract: The Schrödinger equation is solved numerically for charmonium using the discrete variable representation (DVR) method. The Hamiltonian matrix is constructed and diagonalized to obtain the eigenvalues and eigenfunctions. Using these eigenvalues and eigenfunctions, spectra and various decay widths are calculated. The obtained results are in good agreement with other numerical methods and with experiments.
      PubDate: Fri, 30 Jul 2021 02:35:01 +000
       
  • Supervariable and BRST Approaches to a Reparameterization Invariant
           Nonrelativistic System

    • Abstract: We exploit the theoretical strength of the supervariable and Becchi-Rouet-Stora-Tyutin (BRST) formalisms to derive the proper (i.e., off-shell nilpotent and absolutely anticommuting) (anti-)BRST symmetry transformations for the reparameterization invariant model of a nonrelativistic (NR) free particle whose space and time variables are a function of an evolution parameter . The infinitesimal reparameterization (i.e., 1D diffeomorphism) symmetry transformation of our theory is defined w.r.t. this evolution parameter . We apply the modified Bonora-Tonin (BT) supervariable approach (MBTSA) as well as the (anti)chiral supervariable approach (ACSA) to BRST formalism to discuss various aspects of our present system. For this purpose, our 1D ordinary theory (parameterized by ) is generalized onto a -dimensional supermanifold which is characterized by the superspace coordinates where a pair of the Grassmannian variables satisfy the fermionic relationships: ,, and is the bosonic evolution parameter. In the context of ACSA, we take into account only the -dimensional (anti)chiral super submanifolds of the general-dimensional supermanifold. The derivation of the universal Curci-Ferrari- (CF-) type restriction, from various underlying theoretical methods, is a novel observation in our present endeavor. Furthermore, we note that the form of the gauge-fixing and Faddeev-Popov ghost terms for our NR and non-SUSY system is exactly the same as that of the reparameterization invariant SUSY (i.e., spinning) and non-SUSY (i.e., scalar) relativistic particles. This is a novel observation, too.
      PubDate: Fri, 23 Jul 2021 07:20:01 +000
       
  • Effect of Atomic Number on Plasma Pinch Properties and Radiative Emissions

    • Abstract: The aim of the research is to examine the dependence of plasma pinch properties and radiation emissions on the atomic number of the operating gas within the dense plasma focus device (NX2) when using hydrogen and argon gases. Simulation was performed with Lee’s code on an NX2 dense plasma focus at a constant gas pressure value (). The results showed that the minimum radius of the plasma focus in the case of the hydrogen plasma pinch was 0.30 cm and in the case of the argon plasma pinch 0.17 cm, and this affected the value of the radiation emission as it was and 11 J for the hydrogen and argon pinch, respectively. The energy of the ion beam released by the breakdown of the plasma pinch was found as in the state of hydrogen and in the state of argon.
      PubDate: Mon, 12 Jul 2021 07:35:01 +000
       
  • Initial- and Final-State Temperatures of Emission Source from Differential
           Cross-Section in Squared Momentum Transfer in High-Energy Collisions

    • Abstract: The differential cross-section in squared momentum transfer of ,,,,,,,,, and produced in high-energy virtual photon-proton (), photon-proton (), and proton-proton () collisions measured by the H1, ZEUS, and WA102 Collaborations is analyzed by the Monte Carlo calculations. In the calculations, the Erlang distribution, Tsallis distribution, and Hagedorn function are separately used to describe the transverse momentum spectra of the emitted particles. Our results show that the initial- and final-state temperatures increase from lower squared photon virtuality to a higher one and decrease with the increase of center-of-mass energy.
      PubDate: Thu, 17 Jun 2021 10:50:00 +000
       
  • Amended FRW Metric and Rényi Dark Energy Model

    • Abstract: This article is devoted to exploring the Rényi holographic dark energy model in the theory of Chern-Simons modified gravity. We studied the deceleration parameter, equation of state, and cosmological plane considering the Amended FRW modal. Modified field equations of -gravity theory gave two independent solutions. In the first case, this model provided the transitional change from deceleration to acceleration compatible with collected observational data. However, it supported a decelerating phase of expansion only in the second case. It was noted that the Equation of State advocated the dominance era under the influence of dark energy in the first case and the second predicted the influence of CDM. In both cases, voted that the universe is in a freezing region and its cosmic expansion is more rapidly accelerated in the background of Chern-Simons modified gravity.
      PubDate: Wed, 16 Jun 2021 09:20:00 +000
       
  • Exact Solutions to the Nonlinear Schrödinger Equation with
           Time-Dependent Coefficients

    • Abstract: In this paper, a trial function method is employed to find exact solutions to the nonlinear Schrödinger equations with high-order time-dependent coefficients. This system might be used to describe the propagation of ultrashort optical pulses in nonlinear optical fibers, with self-steepening and self-frequency shift effects. The new general solutions are found for the general case including the Jacobi elliptic function solutions, solitary wave solutions, and rational function solutions which are presented in comparison with the previous ones obtained by Triki and Wazwaz, who only studied the special case .
      PubDate: Wed, 16 Jun 2021 08:50:00 +000
       
 
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