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2021 Vol. 45, No. 7

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PARTICLES AND FIELDS
Antineutrino energy spectrum unfolding based on the Daya Bay measurement and its applications
F. P. An, A. B. Balantekin, M. Bishai, S. Blyth, G. F. Cao, J. Cao, J. F. Chang, Y. Chang, H. S. Chen, S. M. Chen, Y. Chen, Y. X. Chen, J. Cheng, Z. K. Cheng, J. J. Cherwinka, M. C. Chu, J. P. Cummings, O. Dalager, F. S. Deng, Y. Y. Ding, M. V. Diwan, T. Dohnal, D. Dolzhikov, J. Dove, M. Dvořák, D. A. Dwyer, J. P. Gallo, M. Gonchar, G. H. Gong, H. Gong, M. Grassi, W. Q. Gu, J. Y. Guo, L. Guo, X. H. Guo, Y. H. Guo, Z. Guo, R. W. Hackenburg, S. Hans, M. He, K. M. Heeger, Y. K. Heng, Y. K. Hor, Y. B. Hsiung, B. Z. Hu, J. R. Hu, T. Hu, Z. J. Hu, H. X. Huang, J. H. Huang, X. T. Huang, Y. B. Huang, P. Huber, D. E. Jaffe, K. L. Jen, X. L. Ji, X. P. Ji, R. A. Johnson, D. Jones, L. Kang, S. H. Kettell, S. Kohn, M. Kramer, T. J. Langford, J. Lee, J. H. C. Lee, R. T. Lei, R. Leitner, J. K. C. Leung, F. Li, H. L. Li, J. J. Li, Q. J. Li, R. H. Li, S. Li, S. C. Li, W. D. Li, X. N. Li, X. Q. Li, Y. F. Li, Z. B. Li, H. Liang, C. J. Lin, G. L. Lin, S. Lin, J. J. Ling, J. M. Link, L. Littenberg, B. R. Littlejohn, J. C. Liu,
2021, 45(7): 073001. doi: 10.1088/1674-1137/abfc38
Abstract:
The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in comb...
Factorization of radiative leptonic D-meson decay with sub-leading power corrections
Long-Sheng Lu
2021, 45(7): 073101. doi: 10.1088/1674-1137/abf5c9
Abstract:
In this work, we calculate the sub-leading power contributions to radiative leptonic \begin{document}$ D\to\gamma \,\ell \,\nu $\end{document} decay. For the first time, we provide the analytic expressions of next-to-leading power contributions and t...
Effective field theory approach to lepton number violating τ decays
Yi Liao, Xiao-Dong Ma, Hao-Lin Wang
2021, 45(7): 073102. doi: 10.1088/1674-1137/abf72e
Abstract:
We continue our endeavor to investigate lepton number violating (LNV) processes at low energies in the framework of effective field theory (EFT). In this work we study the LNV tau decays \begin{document}$ \tau^+\rightarrow \ell^-P_i^{+}P_j^{+} $\end{...
Dependence of overlap topological charge density on Wilson mass parameter
Zhen Cheng, Jian-bo Zhang
2021, 45(7): 073103. doi: 10.1088/1674-1137/abf827
Abstract:
In this paper, we analyze the dependence of the topological charge density from the overlap operator on the Wilson mass parameter in the overlap kernel by the symmetric multi-probing source (SMP) method. We observe that non-trivial topological object...
Detecting anomalies in vector boson scattering
Jinmian Li, Shuo Yang, Rao Zhang
2021, 45(7): 073104. doi: 10.1088/1674-1137/abf829
Abstract:
Measuring vector boson scattering (VBS) precisely is an important step toward understanding the electroweak symmetry breaking of and detecting new physics beyond the standard model (SM). Herein, we propose a neural network that compresses the feature...
QCD chiral phase transition and critical exponents within the nonextensive Polyakov-Nambu-Jona-Lasinio model
Ya-Peng Zhao, Shu-Yu Zuo, Cheng-Ming Li
2021, 45(7): 073105. doi: 10.1088/1674-1137/abf8a2
Abstract:
We present a nonextensive version of the Polyakov-Nambu-Jona-Lasinio model that is based on nonextentive statistical mechanics. This new statistics model is characterized by a dimensionless nonextensivity parameter q that accounts for all possible ef...
Exact relations for two-photon-exchange effect in elastic ep scattering by dispersion relation and hadronic model
Hui-Yun Cao, Hai-Qing Zhou
2021, 45(7): 073106. doi: 10.1088/1674-1137/abf913
Abstract:
The two-photon-exchange (TPE) effect plays a key role in extracting the form factors (FFs) of the proton. In this work, we discuss several exact properties of the TPE effect in the elastic \begin{document}$ep$\end{document} scattering. By taking four...
Analysis of Zcs(3985) as the axialvector tetraquark state
Zhi-Gang Wang
2021, 45(7): 073107. doi: 10.1088/1674-1137/abfa83
Abstract:
In this study, we choose the scalar and axialvector diquark operators in the color antitriplet as the fundamental building blocks to construct four-quark currents and investigate the diquark-antidiquark type axialvector tetraquark states \begin{docum...
Di-Higgs production as a probe of flavor changing neutral Yukawa couplings
Shi-Ping He
2021, 45(7): 073108. doi: 10.1088/1674-1137/abfb50
Abstract:
Top partners are well motivated in many new physics models. Usually, vector like quarks, \begin{document}$T_{\rm L,R}$\end{document}, are introduced to circumvent the quantum anomaly. Therefore, it is crucial to probe their interactions with standard...
Chiral symmetry restoration and deconfinement in the contact interaction model of quarks with parallel electric and magnetic fields
Aftab Ahmad
2021, 45(7): 073109. doi: 10.1088/1674-1137/abfb5f
Abstract:
We study the impact of steady, homogeneous, and external parallel electric and magnetic field strengths (\begin{document}$ eE\parallel eB $\end{document}) on the chiral symmetry breaking-restoration and confinement-deconfinement phase transition. We ...
Exclusive and dissociative J/ψ production with collinear-improved Balitsky-Kovchegov equation
Shiyi Zhang, Shaohong Cai, Wenchang Xiang, Yanbing Cai, Daicui Zhou
2021, 45(7): 073110. doi: 10.1088/1674-1137/abfbca
Abstract:
We extend the hotspot model to include the virtuality dependence and use it to study the exclusive and dissociative \begin{document}${J}/{\psi}$\end{document} production combined with the dipole amplitude in the target rapidity representation. We det...
AdS/Deep-Learning made easy: simple examples
Mugeon Song, Maverick S. H. Oh, Yongjun Ahn, Keun-Young Kima
2021, 45(7): 073111. doi: 10.1088/1674-1137/abfc36
Abstract:
Deep learning has been widely and actively used in various research areas. Recently, in gauge/gravity duality, a new deep learning technique called AdS/DL (Deep Learning) has been proposed. The goal of this paper is to explain the essence of AdS/DL i...
Radiative decay of the Ξ(1620) in a hadronic molecule picture
Yin Huang, Feng Yang, HongQiang Zhu
2021, 45(7): 073112. doi: 10.1088/1674-1137/abfd28
Abstract:
Last year, the \begin{document}$ \Xi(1620) $\end{document} state, which is cataloged in the Particle Data Group (PDG) with only one star, was reported again in the \begin{document}$ \Xi^{-}\pi^{+} $\end{document} final state by the Belle Collaboratio...
Discriminating the HTM and MLRSM models in collider studies via doubly charged Higgs boson pair production and the subsequent leptonic decays
Janusz Gluza, Magdalena Kordiaczyńska, Tripurari Srivastava
2021, 45(7): 073113. doi: 10.1088/1674-1137/abfe51
Abstract:
We present a case study for the doubly charged Higgs boson \begin{document}$H^{\pm\pm}$\end{document} pair production in \begin{document}$e^+e^-$\end{document} and pp colliders with their subsequent decays to four charged leptons. We consider the Hig...
Same-Sign Dilepton Signature in the Inert Doublet Model
Fa-Xin Yang, Zhi-Long Han, Yi Jin
2021, 45(7): 073114. doi: 10.1088/1674-1137/abf828
Abstract:
In this study, we perform a detailed analysis on the same-sign dilepton signature in the inert doublet model. Focusing on the low dark matter mass region, we randomly scan the corresponding parameter space. Viable samples allowed by various constrain...
NUCLEAR PHYSICS
Cross section measurements for (n,2n),(n,α), and (n,p) reactions on rhenium isotopes around 14 MeV neutrons and their theoretical calculations of excitation functions
Fengqun Zhou, Yueli Song, Xinyi Chang, Yong Li, Shuqing Yuan, Pengfei Ji, Mingli Tian
2021, 45(7): 074101. doi: 10.1088/1674-1137/abf5ca
Abstract:
Cross-section data of the 185Re(n,2n)184mRe, 185Re(n,2n)184gRe, 185Re(n,α)182m1+m2+gTa, 187Re(n, 2n)186g,(m)Re, 187Re(n,α)184Ta, and 187Re(n,p)187W reactions were measured at four neutron energies, namely 13.5, 14.1, 14.4, and 14.8 MeV, by means of t...
Hydrodynamic description of D meson production in high-energy heavy-ion collisions
Chi Ding, Wei-Yao Ke, Long-Gang Pang, Xin-Nian Wang
2021, 45(7): 074102. doi: 10.1088/1674-1137/abf645
Abstract:
The large values and constituent-quark-number scaling of the elliptic flow of low-\begin{document}$ p_T $\end{document} D mesons imply that charm quarks, initially produced through hard processes, might be partially thermalized through strong interac...
Effects of electric fields on 7Be half-life
Farshid Gholamian, Mohammad Mehdi Firoozabadi, Reza Sarhaddi
2021, 45(7): 074103. doi: 10.1088/1674-1137/abf6c3
Abstract:
First-principle calculations based on the density functional theory (DFT) method are adopted to investigate the influence of a strong electric field on the 7Be half-life. Accordingly, electronic structures of Be and BeO are examined in the presence o...
Neutrons in the classically forbidden region in neutron-rich nucleus 68Ca
Shiwen Zhu, Ying Zhang
2021, 45(7): 074104. doi: 10.1088/1674-1137/abf8a3
Abstract:
Neutrons tunneling to the classically forbidden (CF) region in the neutron-rich nucleus \begin{document}$ ^{68} {\rm{Ca}}$\end{document} are investigated in the Skyrme Hartree-Fock (HF) and Hartree-Fock-Bogoliubov (HFB) models. The definition of the ...
Coexistence of isospin I = 0 and I = 1 pairings in asymmetric nuclear matter
Yi-Jun Yan, Xin-Le Shang, Jian-Min Dong, Wei Zuo
2021, 45(7): 074105. doi: 10.1088/1674-1137/abf99a
Abstract:
The coexistence of neutron-neutron (n-n), proton-proton (p-p), and neutron-proton (n-p) pairings is investigated by adopting an effective density-dependent contact pairing potential. These three types of pairings can coexist only if the n-p pairing i...
Crust-core transition and dynamical instabilities in neutron stars for model with point-coupling interactions
Yan-jun Chen, Zi-peng Cheng, Bin-guang He
2021, 45(7): 074106. doi: 10.1088/1674-1137/abf99b
Abstract:
We explore the effects of the density dependence of symmetry energy on the crust-core phase transition and dynamical instabilities in cold and warm neutron stars in the relativistic mean field (RMF) theory with point-coupling interactions using the V...
Exploring the halo phenomena of medium-mass nuclei having approximately Z = 40 with point-coupled parameters in complex momentum representations
Yao-Wu Chu, Tai-Hua Heng
2021, 45(7): 074107. doi: 10.1088/1674-1137/abfa84
Abstract:
To explore the properties of neutron-rich nuclei with approximately 40 protons, the density-dependent point coupling (DD-PC1) effective interaction parameter is adopted in the relativistic mean-field theory with the complex momentum representation (R...
Improved macroscopic microscopic mass formula
Tian-Liang Zhao, Xiao-Jun Bao, Hong-Fei Zhang
2021, 45(7): 074108. doi: 10.1088/1674-1137/abfaf2
Abstract:
A nuclear mass formula based on the macroscopic microscopic approach is proposed, in which the number of model parameters is reduced compared with other macroscopic microscopic models. The root mean square (RMS) deviation with respect to 2314 trainin...
Theoretical uncertainties on the extraction of in-medium NN cross sections by different Pauli blocking algorithms
Xiang Chen, Yingxun Zhang, Zhuxia Li
2021, 45(7): 074109. doi: 10.1088/1674-1137/abfb51
Abstract:
Three typical Pauli blocking algorithms in quantum molecular dynamics type models are investigated in the nuclear matter, the nucleus, and heavy ion collisions. In nuclear matter, the blocking ratios obtained with the three algorithms are underestima...
Study on higher moments of net-charge multiplicity distributions using a multiphase transport model
Ling Huang, Guo-Liang Ma
2021, 45(7): 074110. doi: 10.1088/1674-1137/abfd29
Abstract:
The moments and moment products of conserved charges are believed to be sensitive to critical fluctuations, which have been adopted in determining the QCD critical point. Using a dynamical multiphase transport model, we reproduce the centrality and e...
PARTICLE AND NUCLEAR ASTROPHYSICS AND COSMOLOGY
Determination of responses of liquid xenon to low energy electron and nuclear recoils using a PandaX-II detector
Binbin Yan, Abdusalam Abdukerim, Wei Chen, Xun Chen, Yunhua Chen, Chen Cheng, Xiangyi Cui, Yingjie Fan, Deqing Fang, Changbo Fu, Mengting Fu, Lisheng Geng, Karl Giboni, Linhui Gu, Xuyuan Guo, Ke Han, Changda He, Di Huang, Peiyao Huang, Yan Huang, Yanlin Huang, Zhou Huang, Xiangdong Ji, Yonglin Ju, Shuaijie Li, Jianglai Liu, Zhuoqun Lei, Wenbo Ma, Yugang Ma, Yajun Mao, Yue Meng, Kaixiang Ni, Jinhua Ning, Xuyang Ning, Xiangxiang Ren, Changsong Shang, Lin Si, Guofang Shen, Andi Tan, Anqing Wang, Hongwei Wang, Meng Wang, Qiuhong Wang, Siguang Wang, Wei Wang, Xiuli Wang, Zhou Wang, Mengmeng Wu, Shiyong Wu, Weihao Wu, Jingkai Xia, Mengjiao Xiao, Pengwei Xie, Rui Yan, Jijun Yang, Yong Yang, Chunxu Yu, Jumin Yuan, Ying Yuan, Jianfeng Yue, Xinning Zeng, Dan Zhang, Tao Zhang, Li Zhao, Qibin Zheng, Jifang Zhou, Ning Zhou, Xiaopeng Zhou, (PandaX-II Collaboration)
2021, 45(7): 075001. doi: 10.1088/1674-1137/abf6c2
Abstract:
We present a systematic determination of the responses of PandaX-II, a dual phase xenon time projection chamber detector, to low energy recoils. The electron recoil (ER) and nuclear recoil (NR) responses are calibrated, respectively, with injected tr...
Phase structures and transitions of quintessence surrounding RN black holes in a grand canonical ensemble
Yuchen Huang, Hongmei Jing, Jun Tao, Feiyu Yao
2021, 45(7): 075101. doi: 10.1088/1674-1137/abf6c4
Abstract:
Considering a grand canonical ensemble, we study the phase structures and transitions of RN black holes surrounded by quintessence dark energy on two different boundary conditions, namely AdS space and a Dirichlet wall. For AdS space, under the condi...
Black holes in asymptotic safety with higher derivatives: accretion and stability analysis
Fabián H. Zuluaga, Luis A. Sánchez
2021, 45(7): 075102. doi: 10.1088/1674-1137/abf72d
Abstract:
We review steady spherically symmetric accretion onto a renormalization group improved Schwarzschild space-time, which is a solution to an asymptotically safe theory (AS) containing high-derivative terms. We use a Hamiltonian dynamical system approac...
Dark sector production and baryogenesis from not quite black holes
Ufuk Aydemir, Jing Ren
2021, 45(7): 075103. doi: 10.1088/1674-1137/abf9ff
Abstract:
Primordial black holes have been considered attractive dark matter candidates, whereas some of the predictions rely heavily on the near-horizon physics that remains to be tested experimentally. As a concrete alternative, thermal 2-2-holes closely res...

ISSN 1674-1137 CN 11-5641/O4

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