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2020 Vol. 44, No. 10

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PARTICLES AND FIELDS
A compact analytical approximation for a light sterile neutrino oscillation in matter
Bao-Biao Yue, Wei Li, Jia-Jie Ling, Fan-Rong Xu
2020, 44(10): 103001. doi: 10.1088/1674-1137/ababfa
Abstract:
The existence of light sterile neutrinos is a long-standing question in particle physics. Several experimental “anomalies” might be explained by introducing eV mass scaled light sterile neutrinos. Many experiments are actively searching for such ligh...
Equation of state and chiral transition in soft-wall AdS/QCD with a more realistic gravitational background
Zhen Fang, Yue-Liang Wu
2020, 44(10): 103101. doi: 10.1088/1674-1137/abab90
Abstract:
We construct an improved soft-wall AdS/QCD model with a cubic coupling term of the dilaton and the bulk scalar field. The background fields in this model are solved by the Einstein-dilaton system with a nontrivial dilaton potential, which has been sh...
Analysis of the strong decays of Pc(4312) as a pentaquark molecular state with QCD sum rules
Zhi-Gang Wang, Xu Wang
2020, 44(10): 103102. doi: 10.1088/1674-1137/ababf7
Abstract:
In this article, we tentatively assign \begin{document}$P_c(4312)$\end{document} to be the \begin{document}$\bar{D}\Sigma_c$\end{document} pentaquark molecular state with the spin-parity \begin{document}$J^P={\frac{1}{2}}^-$\end{document}, and discus...
Logarithmic Regge pole
S. D. Campos
2020, 44(10): 103103. doi: 10.1088/1674-1137/ababf8
Abstract:
This work presents the subtraction procedure and the Regge cut in the logarithmic Regge pole approach. The subtraction mechanism leads to the same asymptotic behavior as previously obtained in the non-subtraction case. The Regge cut, in contrast, int...
Studying the localized CP violation and the branching fraction of the ˉB0Kπ+π+π decay
Jing-Juan Qi, Zhen-Yang Wang, Jing Xu, Xin-Heng Guo
2020, 44(10): 103104. doi: 10.1088/1674-1137/abac00
Abstract:
In this work, we study the localized \begin{document}$ CP $\end{document} violation and the branching fraction of the four-body decay \begin{document}$ \bar{B}^0\rightarrow K^-\pi^+\pi^-\pi^+ $\end{document} by employing a quasi-two-body QCD factoriz...
NUCLEAR PHYSICS
Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at sNN=200 GeV
J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, D. M. Anderson, A. Aparin, E. C. Aschenauer, M. U. Ashraf, F. G. Atetalla, A. Attri, G. S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, J. Bielcik, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, J. D. Brandenburg, A. V. Brandin, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B. K. Chan, F-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, D. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, M. Cherney, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, M. Csanád, M. Daugherity, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, L. Didenko, X. Dong, J. L. Drachenberg, J. C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, C. J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, L. Fulek, C. A. Gagliardi, T
2020, 44(10): 104001. doi: 10.1088/1674-1137/ab97a9
Abstract:
High transverse momentum (\begin{document}$ p_T $\end{document}) particle production is suppressed owing to the parton (jet) energy loss in the hot dense medium created in relativistic heavy-ion collisions. Redistribution of energy at low-to-modest \...
Quenching of γ0 transition results from 2p-1h doorway mechanism by p-wave neutron excitation
Tao-Feng Wang, Xiao-Ting Yang, T. Katabuchi, Zi-Ming Li, Zhi-Bo Xu, G. N. Kim, T. I. Ro, Ying-Lu Han, Li-Hua Zhu, M. Igashira
2020, 44(10): 104002. doi: 10.1088/1674-1137/abab8b
Abstract:
The ratio of \begin{document}$\gamma$\end{document} transition-intensities from the initial capture state to low-lying states may represent the model-independent \begin{document}$\gamma$\end{document}-strength function, which reflects the effects of ...
The angular distributions of elastic scattering of 12,13C+Zr
Cui-Hua Rong, Gao-Long Zhang, Lin Gan, Zhi-Hong Li, L. C. Brandão, E. N. Cardozo, M. R. Cortes, Yun-Ju Li, Jun Su, Sheng-Quan Yan, Sheng Zeng, Gang Lian, Bing Guo, You-Bao Wang, Wei-Ping Liu, J. Lubian
2020, 44(10): 104003. doi: 10.1088/1674-1137/abab8d
Abstract:
To obtain the neutron spectroscopic amplitudes for \begin{document}${}^{90-96}$\end{document}Zr overlaps, experimental data of elastic scattering with small experimental errors and precise optical potentials were analyzed. In this study, the elastic ...
Possibility of observation of hidden-bottom pentaquark resonances in bottomonium photoproduction on protons and nuclei near threshold
E. Ya. Paryev
2020, 44(10): 104101. doi: 10.1088/1674-1137/aba5f8
Abstract:
We study the \begin{document}$\Upsilon(1S)$\end{document} meson photoproduction on protons and nuclei at near-threshold center-of-mass energies below 11.4 GeV (or at the corresponding photon laboratory energies \begin{document}$E_{\gamma}$\end{docume...
Calculations of the α-decay properties of Z = 120, 122, 124, 126 isotopes
Zhishuai Ge, Gen Zhang, Shihui Cheng, Yu. S. Tsyganov, Feng-Shou Zhang
2020, 44(10): 104102. doi: 10.1088/1674-1137/abab00
Abstract:
The \begin{document}$\alpha$\end{document}-decay properties of even-Z nuclei with Z = 120, 122, 124, 126 are predicted. We employ the generalized liquid drop model (GLDM), Royer's formula, and universal decay law (UDL) to calculate the \begin{documen...
New measurements and reanalysis of 14N elastic scattering on 10B target
Marzhan Nassurlla, N. Burtebayev, T. Kh. Sadykov, I. Boztosun, N. Amangeldi, D. Alimov, Zh. Kerimkulov, J. Burtebayeva, Maulen Nassurlla, A. Kurakhmedov, S.B. Sakuta, Mesut Karakoc, Awad A. Ibraheem, K.W. Kemper, Sh. Hamada
2020, 44(10): 104103. doi: 10.1088/1674-1137/abab89
Abstract:
The angular distributions of elastic scattering of 14N ions on 10B targets have been measured at incident beam energies of 21.0 and 24.5 MeV. Angular distributions at higher energies 38–94.0 MeV (previously measured) were also included in the analysi...
ΛΛNΞNN S wave resonance
H. Garcilazo, A. Valcarce
2020, 44(10): 104104. doi: 10.1088/1674-1137/abab8c
Abstract:
We use an existing model of the \begin{document}$ \Lambda\Lambda N - \Xi NN $\end{document} three-body system based on two-body separable interactions to study the \begin{document}$ (I,J^P) = (1/2,1/2^+) $\end{document} three-body channel. For the \b...
Transverse momentum balance and angular distribution of bˉb dijets in Pb + Pb collisions
Wei Dai, Sa Wang, Shan-Liang Zhang, Ben-Wei Zhang, Enke Wang
2020, 44(10): 104105. doi: 10.1088/1674-1137/abab8f
Abstract:
In this study, the production of inclusive b-jet and \begin{document}$b\bar{b}$\end{document} dijets in Pb + Pb collisions has been investigated by considering the in-medium evolution of heavy and light quarks simultaneously. The initial hard process...
Massless limit of transport theory for massive Fermions
Xingyu Guo
2020, 44(10): 104106. doi: 10.1088/1674-1137/ababf9
Abstract:
We studied the \begin{document}$ m = 0 $\end{document} limit of different components of Wigner functions for massive fermions. Comparing with the chiral kinetic theory, we separated the vanishing and non-vanishing parts of vector and axial-vector com...
PARTICLE AND NUCLEAR ASTROPHYSICS AND COSMOLOGY
Quantum ekpyrotic mechanism in Fermi-bounce curvaton cosmology
Andrea Addazi, Antonino Marciano
2020, 44(10): 105101. doi: 10.1088/1674-1137/aba58d
Abstract:
Within the context of the Fermi-bounce curvaton mechanism, we analyze the one-loop radiative corrections to the four-fermion interaction, generated by the non-dynamical torsion field in the Einstein-Cartan-Holst-Sciama-Kibble theory. We show that con...
Durgapal IV model considering the minimal geometric deformation approach
Francisco Tello-Ortiz, Ángel Rincón, Piyali Bhar, Y. Gomez-Leyton
2020, 44(10): 105102. doi: 10.1088/1674-1137/aba5f7
Abstract:
The present article reports the study of local anisotropic effects on Durgapal's fourth model in the context of gravitational decoupling via the minimal geometric deformation approach. To achieve this, the most general equation of state relating the ...
Multi-pole dark energy
Chao-Jun Feng, Xiang-Hua Zhai, Xin-Zhou Li
2020, 44(10): 105103. doi: 10.1088/1674-1137/aba5f9
Abstract:
A scalar field with a pole in its kinetic term is often used to study cosmological inflation; it can also play the role of dark energy, which is called the pole dark energy model. We propose a generalized model where the scalar field may have two or ...
Running vacuum model in a non-flat universe
Chao-Qiang Geng, Yan-Ting Hsu, Lu Yin, Kaituo Zhang
2020, 44(10): 105104. doi: 10.1088/1674-1137/abab86
Abstract:
We investigate observational constraints on the running vacuum model (RVM) of \begin{document}$\Lambda=3\nu (H^{2}+K/a^2)+c_0$\end{document} in a spatially curved universe, where \begin{document}$\nu$\end{document} is the model parameter, \begin{docu...
Jet quenching parameter from a soft wall AdS/QCD model
Xiangrong Zhu, Zi-qiang Zhang
2020, 44(10): 105105. doi: 10.1088/1674-1137/abab87
Abstract:
We study the effect of chemical potential and nonconformality on the jet quenching parameter in a holographic QCD model with conformal invariance broken by background dilaton. The presence of chemical potential and nonconformality both increase the j...
Exploring physical properties of compact stars in f(R,T) -gravity: An embedding approach
Ksh. Newton Singh, Abdelghani Errehymy, Farook Rahaman, Mohammed Daoud
2020, 44(10): 105106. doi: 10.1088/1674-1137/abab88
Abstract:
Solving field equations exactly in \begin{document}$f(R,T)-$\end{document}gravity is a challenging task. To do so, many authors have adopted different methods such as assuming both the metric functions and an equation of state (EoS) and a metric func...
Revisiting black hole thermodynamics in massive gravity: charged particle absorption and infalling shell of dust
Shi-Qian Hu, Bo Liu, Xiao-Mei Kuang, Rui-Hong Yue
2020, 44(10): 105107. doi: 10.1088/1674-1137/abab8a
Abstract:
In this study, we apply two methods to consider the variation of massive black holes in both normal and extended thermodynamic phase spaces. The first method considers a charged particle being absorbed by the black hole, whereas the second considers ...
The effective potential originating from swampland and the non-trivial Brans-Dicke coupling
Qi Li, Jing Li, Yongxiang Zhou, Xun Xue
2020, 44(10): 105108. doi: 10.1088/1674-1137/abab8e
Abstract:
The effective vacuum energy density contributed by the non-trivial contortion distribution and the bare vacuum energy density can be viewed as the energy density of the auxiliary quintessence field potential. We find that the negative bare vacuum ene...

ISSN 1674-1137 CN 11-5641/O4

Original research articles, Ietters and reviews Covering theory and experiments in the fieids of

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