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2023 Vol. 47, No. 9

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2023-9 Contents
2023, 47(9): 1-2.
Abstract:
PARTICLES AND FIELDS
Search for the doubly heavy baryon Ξ+bc decaying to J/ψΞ+c
LHCb Collaboration, R. Aaij, A.S.W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, B. Adeva, M. Adinolfi, H. Afsharnia, C. Agapopoulou, C.A. Aidala, S. Aiola, Z. Ajaltouni, S. Akar, K. Akiba, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Z. Aliouche, P. Alvarez Cartelle, S. Amato, J.L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, M. Andreotti, D. Andreou, D. Ao, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, B. Audurier, S. Bachmann, M. Bachmayer, J.J. Back, A. Bailly-reyre, P. Baladron Rodriguez, V. Balagura, W. Baldini, J. Baptista de Souza Leite, M. Barbetti, R.J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, J.M. Basels, G. Bassi, B. Batsukh, A. Battig, A. Bay, A. Beck, M. Becker, F. Bedeschi, I.B. Bediaga, A. Beiter, V. Belavin, S. Belin, V. Bellee, K. Belous, I. Belov, I. Belyaev, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, D. Berninghoff, H.C. Bernstein, C. Bertella, A. Bertolin, C. Betancourt, F. Betti, Ia. Bezshyik
2023, 47(9): 093001. doi: 10.1088/1674-1137/ace9c8
Abstract:
A first search for the \begin{document}$ \varXi_{bc}^+ \to J/\psi \varXi_c^+ $\end{document} decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb−1 recorded at cen...
Search for the rare decays W+D+sγ and ZD0γ at LHCb
LHCb Collaboration, R. Aaij, A.S.W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, B. Adeva, M. Adinolfi, P. Adlarson, H. Afsharnia, C. Agapopoulou, C.A. Aidala, Z. Ajaltouni, S. Akar, K. Akiba, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Z. Aliouche, P. Alvarez Cartelle, R. Amalric, S. Amato, J.L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, M. Andreotti, D. Andreou, D. Ao, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, B. Audurier, S. Bachmann, M. Bachmayer, J.J. Back, A. Bailly-reyre, P. Baladron Rodriguez, V. Balagura, W. Baldini, J. Baptista de Souza Leite, M. Barbetti, R.J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, J.M. Basels, G. Bassi, B. Batsukh, A. Battig, A. Bay, A. Beck, M. Becker, F. Bedeschi, I.B. Bediaga, A. Beiter, V. Belavin, S. Belin, V. Bellee, K. Belous, I. Belov, I. Belyaev, G. Benane, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, S. Bernet Andres, D. Berninghoff, H.C. Bernstein, C. Bertella, A. Ber
2023, 47(9): 093002. doi: 10.1088/1674-1137/aceae9
Abstract:
A search for the rare decays \begin{document}$W^{+} \rightarrow D_s^{+} \gamma$\end{document} and \begin{document}$Z \rightarrow D^0 \gamma$\end{document} is performed using proton-proton collision data collected by the LHCb experiment at a centre-of...
Spin density matrix for Ω and its polarization alignment in ψ(3686)ΩˉΩ+
Zhe Zhang, Jiao-Jiao Song
2023, 47(9): 093101. doi: 10.1088/1674-1137/ace17e
Abstract:
We investigate the spin density matrix of \begin{document}$ \Omega^{-} $\end{document} in the Cartesian coordinate system of baryon-antibaryon pairs produced in \begin{document}$ e^{+}e^{-} $\end{document} annihilation. Using the helicity formalism o...
Nucleons as modified Ising models
Shu-Man Hu, Yin-Sen Luan, Ji Xu
2023, 47(9): 093102. doi: 10.1088/1674-1137/ace312
Abstract:
In this paper, we propose a map that connects nucleons bound in nuclei and Ising spins in the Ising model. This proposal is based on the fact that the description of states of nucleons and Ising spins could share the same type of observables. We pres...
Phenomenological study of J/ψΞ0(Λπ0)ˉΞ0(ˉΛγ) decays
Peng-Cheng Hong, Rong-Gang Ping, Wei-Min Song, He Li, Xiao-Rong Zhou
2023, 47(9): 093103. doi: 10.1088/1674-1137/ace354
Abstract:
The measurement of decay parameters is one of the important goals of particle physics experiments, and the measurement serves as a probe to search for evidence of CP violation in baryonic decays. The experimental results will aid in advancing existin...
Testing type II seesaw leptogenesis at the LHC
Chengcheng Han, Zhanhong Lei, Weihao Liao
2023, 47(9): 093104. doi: 10.1088/1674-1137/ace708
Abstract:
Type II seesaw leptogenesis simultaneously explains the origin of neutrino masses, the baryon asymmetry of our universe, and inflation. The Large Hadron Collider (LHC) provides an opportunity to directly test type II seesaw leptogenesis by looking fo...
J/ψ pair hadroproduction at next-to-leading order in nonrelativistic-QCD at CMS
Li-Ping Sun
2023, 47(9): 093105. doi: 10.1088/1674-1137/ace521
Abstract:
We perform a complete study of \begin{document}$ J/\psi $\end{document} pair hadroproduction at next-to-leading order (NLO) in the nonrelativstic-QCD (NRQCD) framework with the \begin{document}$ c\bar{c} $\end{document} pair either in the \begin{docu...
The Λ-type P-wave bottom baryon states via the QCD sum rules
Qi Xin, Zhi-Gang Wang, Fei Lü
2023, 47(9): 093106. doi: 10.1088/1674-1137/ace81f
Abstract:
Our study focuses on the Λ-type P-wave bottom baryon states with spin-parity \begin{document}$J^P={1}/{2}^-$\end{document}, \begin{document}${3}/{2}^-$\end{document}. We introduce an explicit P-wave between the two light quarks in the interpolating c...
NUCLEAR PHYSICS
Measurement of the (n, 2n) reaction cross-sections of iodine and cesium induced by D-T neutrons with covariance analysis
Changlin Lan, Yuxing Niu, Yuting Wei, Fangxiao Lu, Xianlin Yang, Ruirui Xu, Yue Zhang, Yujie Ge, Jiahao Wang, Gong Jiang
2023, 47(9): 094001. doi: 10.1088/1674-1137/ace313
Abstract:
The cross-sections of the 127I (n, 2n) 126I and 133Cs (n, 2n) 132Cs reactions at neutron energies of 13.83 ± 0.05, 14.33 ± 0.10, and 14.79 ± 0.10 MeV were measured relative to the 93Nb (n, 2n) 92mNb reaction using the activation technique in combinat...
Investigation of the relationship between mirror proton radii and neutron-skin thickness
Meng-Qi Ding, Ping Su, De-Qing Fang, Si-Min Wang
2023, 47(9): 094101. doi: 10.1088/1674-1137/ace680
Abstract:
Through systematic investigations using the axially deformed solutions of the Skyrme-Hartree-Fock-Bogoliubov equations with 132 sets of Skyrme interaction parameters, it is confirmed that the neutron-skin thickness (\begin{document}$ S_{n} $\end{docu...
Multi-skyrmion states in the Skyrme model with a false vacuum potential
Jun-Shuai Wang, Yong-Liang Ma
2023, 47(9): 094102. doi: 10.1088/1674-1137/ace9c7
Abstract:
We study multi-skyrmion states using the Skyrme model with a false vacuum potential up to baryon number \begin{document}$ B=8 $\end{document} using the product ansatz. It is found that both the false and true vacuum potentials can result in a cluster...
Systematic calculations of cluster radioactivity half-lives with a screened electrostatic barrier
Xiao Liu, Jie-Dong Jiang, Lin-Jing Qi, Yang-Yang Xu, Xi-Jun Wu, Xiao-Hua Li
2023, 47(9): 094103. doi: 10.1088/1674-1137/ace351
Abstract:
In this study, based on Wentzel-Kramers-Brillouin theory, we systematically investigate the cluster radioactivity half-lives of 22 nuclei ranging from \begin{document}$ ^{221} {{\rm{Fr}}}$\end{document} to \begin{document}$^{242} {{\rm{Cm }}}$\end{...
PARTICLE AND NUCLEAR ASTROPHYSICS AND COSMOLOGY
Prospects for the detection rate of very-high-energy γ-ray emissions from short γ-ray bursts with the HADAR experiment
Qi-Ling Chen, Pei-Jin Hu, Jing-Jing Su, Ming-Ming Kang, Yi-Qing Guo, Tian-Lu Chen, Dan-Zeng Luo-Bu, Yu-fan Fan, You-Liang Feng, Qi Gao, Quan-Bu Gou, Hong-Bo Hu, Hai-Jin Li, Cheng Liu, Mao-Yuan Liu, Wei Liu, Xiang-Li Qian, Bing-Qiang Qiao, Hui-Ying Sun, Xu Wang, Zhen Wang, Guang-Guang Xin, Yu-Hua Yao, Qiang Yuan, Yi Zhang, Bing Zhao
2023, 47(9): 095001. doi: 10.1088/1674-1137/ace3ac
Abstract:
The observation of short gamma ray bursts (SGRBs) in the TeV energy range plays an important role in understanding the radiation mechanism and probing potential new physics, such as Lorentz invariance violation (LIV). However, no SGRBs have been obse...
Freeze-in dark matter in EDGES 21-cm signal
Shengyu Wu, Shuai Xu, Sibo Zheng
2023, 47(9): 095101. doi: 10.1088/1674-1137/ace17f
Abstract:
The first measurement of the temperature of the hydrogen 21-cm signal reported by EDGES strongly favors the Coulomb-like interaction between freeze-in dark matter and baryon fluid. We investigate such dark matter in both the one- and two-component co...
Two non-perturbative α' or loop corrected string cosmological solutions
Li Song, Deyou Chen
2023, 47(9): 095102. doi: 10.1088/1674-1137/acddd5
Abstract:
In this paper, we present two non-perturbative string cosmological solutions without curvature singularities for the bosonic gravi-dilaton system. These solutions are general in that they can straightforwardly match the perturbative solution to arbit...
Strange quark mass (ms) dependent model of anisotropic strange quark star
A. Hakim, K.B. Goswami, P.K. Chattopadhyay
2023, 47(9): 095103. doi: 10.1088/1674-1137/acddd6
Abstract:
This article presents the configuration of strange quark stars in hydrostatic equilibrium considering the Vaidya-Tikekar metric ansatz. The interior of such stars comprises strange quark matter (henceforth SQM), whose equation of state (\begin{docume...
Thin-shell gravastar model in f(Q, T) gravity
Sneha Pradhan, Debasmita Mohanty, P.K. Sahoo
2023, 47(9): 095104. doi: 10.1088/1674-1137/ace311
Abstract:
In the last few decades, gravastars have been proposed as an alternative to black holes. The stability of a gravastar has been examined in many modified theories of gravity along with Einstein's GR. The \begin{document}$ f(Q, T) $\end{document} gravi...
Restricted phase space thermodynamics of charged AdS black holes in conformal gravity
Xiangqing Kong, Zhiqiang Zhang, Liu Zhao
2023, 47(9): 095105. doi: 10.1088/1674-1137/ace9c2
Abstract:
The thermodynamics of charged spherically symmetric AdS black holes in conformal gravity is revisited using the recently proposed restricted phase space (RPS) formalism. This formalism avoids all the bizarreness arising in the extended phase space fo...

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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