Authors:Z. Y. Tian; Y. L. Ye, Z. H. Li, C. J. Lin, Q. T. Li, Y. C. Ge, J. L. Lou, W. Jiang, J. Li, Z. H. Yang, J. Feng, P. J. Li, J. Chen, Q. Liu, H. L. Zang, B. Yang, Y. Zhang, Z. Q. Chen, Y. Liu, X. H. Sun, J. Ma, H. M. Jia, X. X. Xu, L. Yang, N. R. Ma L. J. Sun First page: 111001 Abstract: A cluster-transfer experiment of 9 Be( 9 Be, 14 C → α + 10 Be) α at an incident energy of 45 MeV was
carried out in order to investigate the molecular structure in high-lying resonant states in 14 C.
This reaction is of extremely large Q -value, making it an excellent case to select the reaction
mechanism and the final states in outgoing nuclei. The high-lying resonances in 14 C are
reconstructed for three sets of well discriminated final states in 10 Be. The results confirm the
previous decay measurements with clearly improved decay-channel selections and also show a new state
at 23.5(1) MeV. The resonant states at 22.4(3) and 24.0(3) MeV decay primarily into the typical
molecular states at about 6 MeV in 10 Be, indicating a well developed cluster structure in these
high-lying states in 14 C. Further measurements of more states of this kind are suggested. Citation: Chinese Physics C PubDate: 2016-11-16T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:M. Ablikim; M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht, D. J. Ambrose, A. Amoroso, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, D. W. Bennett, J. V. Bennett, M. Bertani, D. Bettoni, J. M. Bian, F. Bianchi, E. Boger, I. Boyko, R. A. Briere, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, H. Y. Chen, J. C. Chen, M. L. Chen, S. Chen, S. J. Chen, X. Chen, X. R. Chen, Y. B. Chen, H. P. Cheng, X. K. Chu, G. Cibinetto, H. L. Dai, J. P. Dai, A. Dbeyssi, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, Y. Ding, C. Dong, J. Dong, L. Y. Dong, M. Y. Dong, Z. L. Dou, S. X. Du, P. F. Duan, J. Z. Fan, J. Fang, S. S. Fang, X. Fang, Y. Fang, R. Farinelli, L. Fava, O. Fedorov, F. Feldbauer, G. Felici, C. Q. Feng, E. Fioravanti, M. Fritsch, C. D. Fu, Q. Gao, X. L. Gao, X. Y. Gao, Y. Gao, Z. Gao, I. Garzia, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, M. Greco, M. H. Gu, Y. T. Gu, Y. H. Guan, A. Q. Guo, L. B. Guo, R. P. Guo, Y. Guo, Y. P. Guo, Z. Haddadi, A. Hafner, S. Han, X. Q. Hao, F. A. Harris, K. L. He, T. Held, Y. K. Heng, Z. L. Hou, C. Hu, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, J. S. Huang, X. T. Huang, X. Z. Huang, Y. Huang, Z. L. Huang, T. Hussain, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, L. W. Jiang, X. S. Jiang, X. Y. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, S. Jin, T. Johansson, A. Julin, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, M. Kavatsyuk, B. C. Ke, P. Kiese, R. Kliemt, B. Kloss, O. B. Kolcu, B. Kopf, M. Kornicer, A. Kupsc, W. Kühn, J. S. Lange, M. Lara, P. Larin, C. Leng, C. Li, Cheng Li, D. M. Li, F. Li, F. Y. Li, G. Li, H. B. Li, H. J. Li, J. C. Li, Jin Li, K. Li, K. Li, Lei Li, P. R. Li, Q. Y. Li, T. Li, W. D. Li, W. G. Li, X. L. Li, X. N. Li, X. Q. Li, Y. B. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, D. X. Lin, B. Liu, B. J. Liu, C. X. Liu, D. Liu, F. H. Liu, Fang Liu, Feng Liu, H. B. Liu, H. H. Liu, H. H. Liu, H. M. Liu, J. Liu, J. B. Liu, J. P. Liu, J. Y. Liu, K. Liu, K. Y. Liu, L. D. Liu, P. L. Liu, Q. Liu, S. B. Liu, X. Liu, Y. B. Liu, Z. A. Liu, Zhiqing Liu, H. Loehner, X. C. Lou, H. J. Lü, J. G. Lü, Y. Lu, Y. P. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lü, F. C. Ma, H. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, T. Ma, X. N. Ma, X. Y. Ma, Y. M. Ma, F. E. Maas, M. Maggiora, Y. J. Mao, Z. P. Mao, S. Marcello, J. G. Messchendorp, J. Min, T. J. Min, R. E. Mitchell, X. H. Mo, Y. J. Mo, C. Morales Morales, N. Yu. Muchnoi, H. Muramatsu, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, S. L. Niu, X. Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, Y. Pan, P. Patteri, M. Pelizaeus, H. P. Peng, K. Peters, J. Pettersson, J. L. Ping, R. G. Ping, R. Poling, V. Prasad, H. R. Qi, M. Qi, S. Qian, C. F. Qiao, L. Q. Qin, N. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, K. H. Rashid, C. F. Redmer, M. Ripka, G. Rong, Ch. Rosner, X. D. Ruan, A. Sarantsev, M. Savrié, K. Schoenning, S. Schumann, W. Shan, M. Shao, C. P. Shen, P. X. Shen, X. Y. Shen, H. Y. Sheng, M. Shi, W. M. Song, X. Y. Song, S. Sosio, S. Spataro, G. X. Sun, J. F. Sun, S. S. Sun, X. H. Sun, Y. J. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, C. J. Tang, X. Tang, I. Tapan, E. H. Thorndike, M. Tiemens, M. Ullrich, I. Uman, G. S. Varner, B. Wang, B. L. Wang, D. Wang, D. Y. Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, W. Wang, W. P. Wang, X. F. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. Q. Wang, Z. Wang, Z. G. Wang, Z. H. Wang, Z. Y. Wang, Z. Y. Wang, T. Weber, D. H. Wei, P. Weidenkaff, S. P. Wen, U. Wiedner, M. Wolke, L. H. Wu, L. J. Wu, Z. Wu, L. Xia, L. G. Xia, Y. Xia, D. Xiao, H. Xiao, Z. J. Xiao, Y. G. Xie, Q. L. Xiu, G. F. Xu, J. J. Xu, L. Xu, Q. J. Xu, Q. N. Xu, X. P. Xu, L. Yan, W. B. Yan, W. C. Yan, Y. H. Yan, H. J. Yang, H. X. Yang, L. Yang, Y. X. Yang, M. Ye, M. H. Ye, J. H. Yin, B. X. Yu, C. X. Yu, J. S. Yu, C. Z. Yuan, W. L. Yuan, Y. Yuan, A. Yuncu, A. A. Zafar, A. Zallo, Y. Zeng, Z. Zeng, B. X. Zhang, B. Y. Zhang, C. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, H. Y. Zhang, J. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. Y. Zhang, J. Z. Zhang, K. Zhang, L. Zhang, S. Q. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Y. N. Zhang, Y. T. Zhang, Yu Zhang, Z. H. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, J. W. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, Q. W. Zhao, S. J. Zhao, T. C. Zhao, Y. B. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, L. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, K. Zhu, K. J. Zhu, S. Zhu, S. H. Zhu, X. L. Zhu, Y. C. Zhu, Y. S. Zhu, Z. A. Zhu, J. Zhuang, L. Zotti, B. S. Zou J. H. Zou (BESIII collaboration) First page: 113001 Abstract: By analyzing 2.93 fb −1 data collected at the center-of-mass energy ##IMG##
[http://ej.iop.org/images/1674-1137/40/11/113001/cpc20161102ieqn1.gif] with the BESIII detector, we
measure the absolute branching fraction of the semileptonic decay D + → K̅ 0 e + ν e to be ℬ( D + →
K̅ 0 e + ν e ) = (8.59 ± 0.14 ± 0.21)% using ##IMG##
[http://ej.iop.org/images/1674-1137/40/11/113001/cpc20161102ieqn71.gif] , where the first
uncertainty is statistical and the second systematic. Our result is consistent with previous
measurements within uncertainties.. Citation: Chinese Physics C PubDate: 2016-11-15T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:Rong-Gang Ping; Xi-An Xiong, Lei Xia, Zhen Gao, Ying-Tian Li, Xing-Yu Zhou, Bing-Xin Zhang, Bo Zheng, Wen-Biao Yan, Hai-Ming Hu Guang-Shun Huang First page: 113002 Abstract: To measure the R value in an energy scan experiment with e + e − collisions, precise calculation of
initial state radiation is required in the event generators. We present an event generator for this
consideration, which incorporates initial state radiation effects up to second order accuracy. The
radiative correction factor is calculated using the totally hadronic Born cross section. The
measured exclusive processes are generated according to their cross sections, while the unknown
processes are generated using the LUND Area Law model, and its parameters are tuned with data
collected at ##IMG## [http://ej.iop.org/images/1674-1137/40/11/113002/cpc20161103ieqn1.gif] . The
optimized values are validated with data in the range ##IMG##
[http://ej.iop.org/images/1674-1137/40/11/113002/cpc20161103ieqn2.gif] . These optimized parameters
are universally valid for event generation below the DD̅ threshold. Citation: Chinese Physics C PubDate: 2016-11-16T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:Li-Gang Xia First page: 113003 Abstract: For a resonance decaying to τ + τ − , it is difficult to reconstruct its mass accurately because of
the presence of neutrinos in the decay products of the τ leptons. If the resonance is heavy enough,
we show that its mass can be well determined by the momentum component of the τ decay products
perpendicular to the velocity of the τ lepton, p ⊥ , and the mass of the visible/invisible decay
products, m vis/inv , for τ decaying to hadrons/leptons. By sampling all kinematically allowed
values of p ⊥ and m vis/inv according to their joint probability distributions determined by the MC
simulations, the mass of the mother resonance is assumed to lie at the position with the maximal
probability. Since p ⊥ and m vis/inv are invariant under the boost in the τ lepton direction, the
joint probability distributions are... Citation: Chinese Physics C PubDate: 2016-11-15T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:Ming Chen; Yong-Chang Huang First page: 113101 Abstract: We propose a new picture of black holes through a special holographic screen. This holographic
screen contains all the degrees of freedom of a black hole. We find that this holographic screen is
similar to the ordinary thermodynamic surface system. Meanwhile, through the “white-wall box” and
the formula of sound velocity, we find some similarities between gravitons and photons. We further
assume that such a holographic screen is a kind of Bose-Einstein condensate of gravitons. Through
this assumption and those similarities, we finally get the area law of static black holes. Citation: Chinese Physics C PubDate: 2016-11-15T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:S. Parsamehr; M. Mohsenzadeh First page: 113102 Abstract: On several levels of theoretical physics, especially particle physics and early universe cosmology,
de Sitter space-time has become an attractive possibility. The principle of local gauge invariance
governs all known fundamental interactions of elementary particles, from electromagnetism and weak
interactions to strong interactions and gravity. This paper presents a procedure for defining the
gauge-covariant derivative and gauge invariant Lagrangian density in de Sitter ambient space-time
formalism. The gauge invariant field equation is then explicitly calculated in detail for a massless
spin- ##IMG## [http://ej.iop.org/images/1674-1137/40/11/113102/cpc20161106ieqn2.gif] gauge field. Citation: Chinese Physics C PubDate: 2016-11-15T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:Fa-Peng Huang; Yifu Cai, Hong Li Xinmin Zhang First page: 113103 Abstract: Recently, a novel idea [1] has been proposed to relax the electroweak hierarchy problem through the
cosmological inflation and the axion periotic potential. Here, we further assume that only the
attractive inflation is needed to explain the light mass of the Higgs boson, where we do not need a
specified periodic potential of the axion field. Attractive inflation during the early universe
drives the Higgs boson mass from the large value in the early universe to the small value at
present, where the Higgs mass is an evolving parameter of the Universe. Thus, the small Higgs mass
can technically originate from the cosmological evolution rather than dynamical symmetry or
anthropics. Further, we study the possible collider signals or constraints at a future lepton
collier and the possible constraints from the muon anomalous magnetic moment. A concrete attractive
relaxion model is also discussed, which is consistent with the data of Planck 2015. Citation: Chinese Physics C PubDate: 2016-11-15T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:Junjie Cao; Chengcheng Han, Jie Ren, Lei Wu, Jin-Min Yang Yang Zhang First page: 113104 Abstract: Considering the constraints from collider experiments and dark matter detection, we investigate the
SUSY effects in the Higgs production channels e + e − → Zh at an e + e − collider with a
center-of-mass energy above 240 GeV and γγ → h → bb̄ at a photon collider with a center-of-mass
energy above 125 GeV. In the parameter space allowed by current experiments, we find that the SUSY
corrections to e + e − → Zh can reach a few percent and the production rate of γγ → h → bb̄ can be
enhanced by a factor of 1.2 over the SM prediction. We also calculate the exotic Higgs production e
+ e − → Zh 1 in the next-to-minimal supersymmetric model (NMSSM) (h is the SM-like Higgs, h 1 is the
CP-even Higgs bosons which can be much lighter than h). We find that at a 250 GeV e + e − collider
the production rates of e + e − → Zh 1 can reach... Citation: Chinese Physics C PubDate: 2016-11-15T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:Nan-Ru Ma; Hui-Ming Jia, Cheng-Jian Lin, Lei Yang, Xin-Xing Xu, Li-Jie Sun, Feng Yang, Zhen-Dong Wu, Huan-Qiao Zhang, Zu-Hua Liu Dong-Xi Wang First page: 114001 Abstract: The fusion dynamic mechanism of heavy ions at energies near the Coulomb barrier is complicated and
still not very clear up to now. Accordingly, a self-consistent method based on the CCFULL
calculations has been developed and applied for an ongoing study of the effect of the positive Q
-value neutron transfer (PQNT) channels in this work. The typical experimental fusion data of Ca +
Ca and Ni + Ni is analyzed within the unified calculation scheme. The PQNT effect in near-barrier
fusion is further confirmed based on the self-consistent analysis and extracted quantitatively. Citation: Chinese Physics C PubDate: 2016-11-15T00:00:00Z Issue No:Vol. 40, No. 11 (2016)

Authors:Cao-Jie Shao; De-Yang Yu, Rong-Chun Lu, Tie-Cheng Zhao, Rui-Shi Mao, Jie Li, Ying-Li Xue, Wei Wang, Bian Yang, Ming-Wu Zhang, Jun-Liang Liu, Zhang-Yong Song, Xiao-Hong Cai, Xi-Meng Chen, Da-Yu Yin, Li-Jun Mao, Xiao-Dong Yang, Jian-Cheng Yang You-Jin Yuan First page: 117002 Abstract: The target thickness for nitrogen was determined from the beam energy loss in HIRFL-CSRe during the
experimental study of the K-REC process in 197 MeV/u Xe 54+ -N 2 collisions. Furthermore, the
corresponding integrated luminosity of (1.15±0.06) × 10 30 cm −2 was obtained. As an independent
check on the energy-loss method, we have also determined the integrated luminosity by measuring the
produced X-rays from the K-REC process with a known differential cross section. The values of
(1.12±0.06) × 10 30 and (1.09±0.06) × 10 30 cm −2 were obtained by using two high-purity germanium
(HPGe) detectors which were oriented at 90° and 120° with respect to the beam path, respectively.
The consistent results confirmed the feasibility of the energy-loss method, which may have an
important impact on future internal target experiments at HIRFL-CSRe. Citation: Chinese Physics C PubDate: 2016-11-16T00:00:00Z Issue No:Vol. 40, No. 11 (2016)