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Erratum to: Constraining primordial black holes as dark matter using AMS-02 data

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The European Physical Journal C 2024年第8期84卷 1-1页

作者： Su, Bing-Yu Pan, Xu Wang, Guan-Sen Zu, Lei Yang, Yupeng Feng, Lei Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Nanjing China School of Astronomy and Space Science University of Science and Technology of China Hefei China School of Physics and Physical Engineering Qufu Normal University Qufu China Joint Center for Particle Nuclear Physics and Cosmology Nanjing University-Purple Mountain Observatory Nanjing China

MoEDAL search in the CMS beam pipe for magnetic monopoles produced via the Schwinger effect

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arXiv 2024年

作者： Acharya, B. Alexandre, J. Behera, S.C. Benes, P. Bergmann, B. Bertolucci, S. Bevan, A. Brancaccio, R. Branzas, H. Burian, P. Campbell, M. Cecchini, S. Cho, Y.M. de Montigny, M. De Roeck, A. Ellis, J.R. Fairbairn, M. Felea, D. Frank, M. Gould, O. Hays, J. Hirt, A.M. Ho, D.L.-J. Hung, P.Q. Janecek, J. Kalliokoski, M. Lacarrère, D.H. Leroy, C. Levi, G. Margiotta, A. Maselek, R. Maulik, A. Mauri, N. Mavromatos, N.E. Millward, L. Mitsou, V.A. Musumeci, E. Ostrovskiy, I. Ouimet, P.-P. Papavassiliou, J. Patrizii, L. Pavalaş, G.E. Pinfold, J.L. Popa, L.A. Popa, V. Pozzato, M. Pospisil, S. Rajantie, A. Ruiz de Austri, R. Sahnoun, Z. Sakellariadou, M. Sakurai, K. Sarkar, S. Semenoff, G. Shaa, A. Sirri, G. Sliwa, K. Soluk, R. Spurio, M. Staelens, M. Suk, M. Tenti, M. Togo, V. Tuszynski, J.A. Upreti, A. Vento, V. Vives, O. Theoretical Particle Physics & Cosmology Group Physics Dept. King's College London United Kingdom Department of Physics and Astronomy University of Alabama TuscaloosaAL United States IEAP Czech Technical University Prague Czech Republic INFN Section of Bologna Bologna Italy School of Physics and Astronomy Queen Mary University of London United Kingdom INFN Section of Bologna Department of Physics & Astronomy University of Bologna Italy Institute of Space Science Bucharest - Magurele Romania Experimental Physics Department CERN Geneva Switzerland Center for Quantum Spacetime Sogang University Seoul Korea Republic of Physics Department University of Alberta EdmontonAB Canada Theoretical Physics Department CERN Geneva Switzerland Department of Physics Concordia University MontrealQC Canada University of Nottingham Nottingham United Kingdom Department of Earth Sciences Swiss Federal Institute of Technology Zurich Switzerland Department of Physics Imperial College London United Kingdom Department of Physics University of Virginia CharlottesvilleVA United States Helsinki Institute of Physics University of Helsinki Helsinki Finland Departement de Physique Universite de Montreal Quebec Canada Institute of Theoretical Physics University of Warsaw Warsaw Poland IFIC Universitat de Valencia - CSIC Valencia Spain Physics Department University of Regina ReginaSK Canada Department of Physics University of British Columbia VancouverBC Canada Department of Physics and Astronomy Tufts University MedfordMA United States Int. Centre for Theoretical Physics Trieste Italy Department of Physics School of Applied Mathematical and Physical Sciences National Technical University of Athens Athens Greece

We report on a search for magnetic monopoles (MMs) produced in ultraperipheral Pb-Pb collisions during Run-1 of the LHC. The beam pipe surrounding the interaction region of the CMS experiment was exposed to 184.07 µb−1 of Pb-Pb collisions at 2.76 TeV center-of-mass energy per collision in December 2011, before being removed in 2013. It was scanned by the MoEDAL experiment using a SQUID magnetometer to search for trapped MMs. No MM signal was observed. The two distinctive features of this search are the use of a trapping volume very close to the collision point and ultrahigh magnetic fields generated during the heavy-ion run that could produce MMs via the Schwinger effect. These two advantages allowed setting the first reliable, world-leading mass limits on MMs with high magnetic charge. In particular, the established limits are the strongest available in the range between 2 and 45 Dirac units, excluding MMs with masses of up to 80 GeV at 95% confidence level. Copyright © 2024, The Authors. All rights reserved.

关键词： Heavy ions

Hunting the gamma-ray emission from Fast Radio Burst with Fermi-LAT

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arXiv 2023年

作者： Principe, Giacomo Lalla, Niccolò Di Venere, Leonardo Di Negro, Michela Longo, Francesco Universitá di Trieste Dipartimento di Fisica TriesteI-34127 Italy Istituto Nazionale di Fisica Nucleare Sezione di Trieste TriesteI-34127 Italy Istituto Nazionale di Astrofisica - Istituto di Radioastronomia BolognaI-40129 Italy W. W. Hansen Experimental Physics Laboratory Kavli Institute for Particle Astrophysics and Cosmology Department of Physics SLAC National Accelerator Laboratory Stanford University StanfordCA94305 United States Istituto Nazionale di Fisica Nucleare Sezione di Bari BariI-70126 Italy University of Maryland Baltimore County BaltimoreMD21250 United States NASA Goddard Space Flight Center GreenbeltMD20771 United States Center for Research and Exploration in Space Science and Technology NASA/GSFC GreenbeltMD20771 United States

Fast radio bursts (FRBs) are one of the most exciting new mysteries of astrophysics. Their origin is still unknown, but recent observations seem to link them to soft gamma repeaters and, in particular, to magnetar giant flares (MGFs). The recent detection of a MGF at GeV energies by the Fermi Large Area Telescope (LAT) motivated the search for GeV counterparts to the >100 currently known FRBs. To date, none of these has a known gamma-ray counterpart. Taking advantage of more than 12 years of Fermi-LAT data, we perform a search for gamma-ray emission from almost all the reported repeating and non-repeating FRBs. We analyze on different time scales the Fermi-LAT data for each individual source separately and perform a cumulative analysis on the repeating ones. In addition, we perform the first stacking analysis at GeV energies of this class of sources in order to constrain the gamma-ray properties of the FRBs. The stacking analysis is a powerful method that allows for a possible detection from below-threshold FRBs providing important information on these objects. In this proceeding we present preliminary results of our study and we discuss their implications for the predictions of gamma-ray emission from this class of sources. © 2023, CC BY.

关键词： Gamma rays

Application of the nitrogen laser calibration system in LHAASO-WFCTA

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Application of the nitrogen laser calibration system in LHAA...

37th International Cosmic Ray Conference, ICRC 2021

作者： Chen, Long Li, Xin Ge, Lisi Liu, Hu Sun, Qinning Wang, Yang Xia, Junji Zhu, Fengrong Zhang, Yong Cao, Zhen Aharonian, F. An, Q. Axikegu Bai, L.X. Bai, Y.X. Bao, Y.W. Bastieri, D. Bi, X.J. Bi, Y.J. Cai, H. Cai, J.T. Cao, Zhe Chang, J. Chang, J.F. Chen, B.M. Chen, E.S. Chen, J. Chen, Liang Chen, Liang Chen, Long Chen, M.J. Chen, M.L. Chen, Q.H. Chen, S.H. Chen, S.Z. Chen, T.L. Chen, X.L. Chen, Y. Cheng, N. Cheng, Y.D. Cui, S.W. Cui, X.H. Cui, Y.D. D’Ettorre Piazzoli, B. Dai, B.Z. Dai, H.L. Dai, Z.G. Danzengluobu della Volpe, D. Dong, X.J. Duan, K.K. Fan, J.H. Fan, Y.Z. Fan, Z.X. Fang, J. Fang, K. Feng, C.F. Feng, L. Feng, S.H. Feng, Y.L. Gao, B. Gao, C.D. Gao, L.Q. Gao, Q. Gao, W. Ge, M.M. Geng, L.S. Gong, G.H. Gou, Q.B. Gu, M.H. Guo, F.L. Guo, J.G. Guo, X.L. Guo, Y.Q. Guo, Y.Y. Han, Y.A. He, H.H. He, H.N. He, J.C. He, S.L. He, X.B. He, Y. Heller, M. Hor, Y.K. Hou, C. Hu, H.B. Hu, S. Hu, S.C. Hu, X.J. Huang, D.H. Huang, Q.L. Huang, W.H. Huang, X.T. Huang, X.Y. Huang, Z.C. Ji, F. Ji, X.L. Jia, H.Y. Jiang, K. Jiang, Z.J. Jin, C. Ke, T. Kuleshov, D. Levochkin, K. Li, B.B. Li, Cheng Li, Cong Li, F. Li, H.B. Li, H.C. Li, H.Y. Li, J. Li, K. Li, W.L. Li, X.R. Li, Xin Li, Xin Li, Y. Li, Y.Z. Li, Zhe Li, Zhuo Liang, E.W. Liang, Y.F. Lin, S.J. Liu, B. Liu, C. Liu, D. Liu, H. Liu, H.D. Liu, J. Liu, J.L. Liu, J.S. Liu, J.Y. Liu, M.Y. Liu, R.Y. Liu, S.M. Liu, W. Liu, Y. Liu, Y.N. Liu, Z.X. Long, W.J. Lu, R. Lv, H.K. Ma, B.Q. Ma, L.L. Ma, X.H. Mao, J.R. Masood, A. Min, Z. Mitthumsiri, W. Montaruli, T. Nan, Y.C. Pang, B.Y. Pattarakijwanich, P. Pei, Z.Y. Qi, M.Y. Qi, Y.Q. Qiao, B.Q. Qin, J.J. Ruffolo, D. Rulev, V. Sáiz, A. Shao, L. Shchegolev, O. Sheng, X.D. Shi, J.Y. Song, H.C. Stenkin, Yu.V. Stepanov, V. Su, Y. Sun, Q.N. Sun, X.N. School of Physical Science and Technology Southwest Jiaotong University No.111 North Section 1 Second Ring Road Chengdu China Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences 19B Yuquan RoadShijingshan District Beijing China Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China University of Chinese Academy of Sciences Beijing100049 China TIANFU Cosmic Ray Research Center Sichuan Chengdu China Dublin Institute for Advanced Studies 31 Fitzwilliam Place Dublin Ireland Max-Planck-Institut for Nuclear Physics P.O. Box 103980 Heidelberg69029 Germany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Anhui Hefei230026 China School of Physical Science and Technology School of Information Science and Technology Southwest Jiaotong University Sichuan Chengdu610031 China College of Physics Sichuan University Sichuan Chengdu610065 China School of Astronomy and Space Science Nanjing University Jiangsu Nanjing210023 China Center for Astrophysics Guangzhou University Guangdong Guangzhou510006 China School of Physics and Technology Wuhan University Hubei Wuhan430072 China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Jiangsu Nanjing210023 China Hebei Normal University Hebei Shijiazhuang050024 China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai200030 China Ministry of Education Tibet Lhasa850000 China National Astronomical Observatories Chinese Academy of Sciences Beijing100101 China Sun Yat-sen University Guangdong Zhuhai519000 China Dipartimento di Fisica dell’Università di Napoli `‘Federico II" Complesso Universitario di Monte Sant’Angelo via Cinthia Napoli80126 Italy Sc

The nitrogen laser calibration system for the Wide Field of View Cherenkov Telescope Array (WFCTA) is one of the most important components of the Large High Altitude Air Shower Observatory (LHAASO). This calibration system is composed of three parts, including a high-precision 3D lifting and rotating platform (HiRoP), a nitrogen laser and the wide field of view Cherenkov telescope prototypes. The accuracy of the HiRoP is of great importance for the precise calibration of WFCTA since it controls the laser beam’s pointing direction. A home-made HiRoP was introduced and the measurements implies that the angular and lifting accuracies of HiRoP are better than 0.003° and 0.075 mm, respectively. Furthermore, the pulse energy stability of the nitrogen laser beam is another remarkably important factor. The nitrogen laser system with a wavelength of 337.1 nm located in a high-precision temperature and humidity’s controlling container, resulting in a pulse energy fluctuation less than 3 percent. Besides, the method of a standard zero point verification is employed to improve the long-term accuracy of the beam pointing direction. © Copyright owned by the author(s).

关键词： Laser beams

Searching for Giant Exoplanets around M-dwarf Stars (GEMS) I: Survey Motivation

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arXiv 2024年

作者： Kanodia, Shubham Cañas, Caleb I. Mahadevan, Suvrath Ford, Eric B. Helled, Ravit Anderson, Dana E. Boss, Alan Cochran, William D. Delamer, Megan Han, Te Libby-Roberts, Jessica E. Lin, Andrea S.J. Müller, Simon Robertson, Paul Stefánsson, Guðmundur Teske, Johanna Earth and Planets Laboratory Carnegie Institution for Science 5241 Broad Branch Road NW WashingtonDC20015 United States NASA Goddard Space Flight Center 8800 Greenbelt Road GreenbeltMD20771 United States Department of Astronomy & Astrophysics 525 Davey Laboratory The Pennsylvania State University University ParkPA16802 United States Center for Exoplanets and Habitable Worlds 525 Davey Laboratory The Pennsylvania State University University ParkPA16802 United States Institute for Computational and Data Sciences The Pennsylvania State University University ParkPA16802 United States Center for Astrostatistics 525 Davey Laboratory The Pennsylvania State University University ParkPA16802 United States Center for Theoretical Astrophysics & Cosmology University of Zurich Winterthurerstr. 190 ZurichCH-8057 Switzerland McDonald Observatory Department of Astronomy The University of Texas Austin United States Center for Planetary Systems Habitability The University of Texas Austin United States Department of Physics & Astronomy The University of California Irvine IrvineCA92697 United States Department of Astrophysical Sciences Princeton University 4 Ivy Lane PrincetonNJ08540 United States

Recent discoveries of transiting giant exoplanets around M-dwarf stars (GEMS), aided by the all-sky coverage of TESS, are starting to stretch theories of planet formation through the core-accretion scenario. Recent upper limits on their occurrence suggest that they decrease with lower stellar masses, with fewer GEMS around lower-mass stars compared to solar-type. In this paper, we discuss existing GEMS both through confirmed planets, as well as protoplanetary disk observations, and a combination of tests to reconcile these with theoretical predictions. We then introduce the Searching for GEMS survey, where we utilize multi-dimensional nonparameteric statistics to simulate hypothetical survey scenarios to predict the required sample size of transiting GEMS with mass measurements to robustly compare their bulk-density with canonical hot-Jupiters orbiting FGK stars. Our Monte-Carlo simulations predict that a robust comparison requires about 40 transiting GEMS (compared to the existing sample of ∼ 15) with 5-σ mass measurements. Furthermore, we discuss the limitations of existing occurrence estimates for GEMS, and provide a brief description of our planned systematic search to improve the occurrence rate estimates for GEMS. © 2024, CC BY.

关键词： Monte Carlo methods

Constraints on the axial-vector and pseudo-scalar mediated WIMP-nucleus interactions from PandaX-4T experiment

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arXiv 2022年

作者： Huang, Zhou Han, Chencheng Abdukerim, Abdusalam Bo, Zihao Chen, Wei Chen, Xun Chen, Yunhua Cheng, Chen Cheng, Zhaokan Cui, Xiangyi Fan, Yingjie Fang, Deqing Fu, Changbo Fu, Mengting Geng, Lisheng Giboni, Karl Gu, Linhui Guo, Xuyuan Han, Ke He, Changda He, Jinrong Huang, Di Huang, Yanlin Hou, Ruquan Ji, Xiangdong Ju, Yonglin Li, Chenxiang Li, Jiafu Li, Mingchuan Li, Shu Li, Shuaijie Lin, Qing Liu, Jianglai Lu, Xiaoying Luo, Lingyin Luo, Yunyang Ma, Wenbo Ma, Yugang Mao, Yajun Meng, Yue Ning, Xuyang Qi, Ningchun Qian, Zhicheng Ren, Xiangxiang Shaheed, Nasir Shang, Changsong Shang, Xiaofeng Shen, Guofang Si, Lin Sun, Wenliang Tan, Andi Tao, Yi Wang, Anqing Wang, Meng Wang, Qiuhong Wang, Shaobo Wang, Siguang Wang, Wei Wang, Xiuli Wang, Zhou Wei, Yuehuan Wu, Mengmeng Wu, Weihao Xia, Jingkai Xiao, Mengjiao Xiao, Xiang Xie, Pengwei Yan, Binbin Yan, Xiyu Yang, Jijun Yang, Yong Yu, Chunxu Yuan, Jumin Yuan, Zhe Zeng, Xinning Zhang, Dan Zhang, Minzhen Zhang, Peng Zhang, Shibo Zhang, Shu Zhang, Tao Zhang, Yingxin Zhang, Yuanyuan Zhao, Li Zheng, Qibin Zhou, Jifang Zhou, Ning Zhou, Xiaopeng Zhou, Yong Zhou, Yubo Shanghai Key Laboratory for Particle Physics and Cosmology Shanghai200240 China School of Physics Beihang University Beijing102206 China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang University Beijing102206 China School of Physics and Microelectronics Zhengzhou University Henan Zhengzhou450001 China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei230026 China Department of Modern Physics University of Science and Technology of China Hefei230026 China School of Physics Peking University Beijing100871 China Yalong River Hydropower Development Company Ltd. 288 Shuanglin Road Chengdu610051 China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary Scienc Shandong University Shandong Qingdao266237 China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong University Shandong Qingdao266237 China Department of Physics University of Maryland College ParkMD20742 United States Tsung-Dao Lee Institute Shanghai Jiao Tong University Shanghai200240 China School of Mechanical Engineering Shanghai Jiao Tong University Shanghai200240 China School of Physics Sun Yat-Sen University Guangzhou510275 China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen University Zhuhai519082 China School of Physics Nankai University Tianjin300071 China Institute of Modern Physics Fudan University Shanghai200433 China School of Medical Instrument and Food Engineering University of Shanghai for Science and Technology Shanghai200093 China Shanghai Jiao Tong University Sichuan Research Institute Chengdu610213 China

We present the constraints on the axial-vector and pseudo-scalar mediated WIMP-nucleus interactions from the PandaX-4T experiment, using the data set corresponding to a total exposure of 0.63 tonne·year. No significant signal excess is observed, and the most stringent constraints to date on the mediator mass are set for the axial-vector and pseudo-scalar simplified models. The maximum excluded mass of an axial-vector mediator is 825 GeV/c2 and that of a pseudo-scalar mediator is 106 GeV/c2. In addition, the upper limits on the spin-dependent WIMP-nucleon scattering cross-section for conventional neutron-only and proton-only interactions are derived. Copyright © 2022, The Authors. All rights reserved.

关键词： Vectors

Big bang nucleosynthesis constraints on higher-order modified gravities

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Physical Review D 2022年第8期105卷 084010-084010页

作者： Petros Asimakis Spyros Basilakos Nick E. Mavromatos Emmanuel N. Saridakis Department of Physics School of Applied Mathematical and Physical Sciences National Technical University of Athens 9 Iroon Polytechniou Str. Zografou Campus GR 15780 Athens Greece National Observatory of Athens Lofos Nymfon 11852 Athens Greece Academy of Athens Research Center for Astronomy and Applied Mathematics Soranou Efesiou 4 11527 Athens Greece School of Sciences European University Cyprus Diogenes Street Engomi 1516 Nicosia Cyprus Theoretical Particle Physics and Cosmology Group Physics Department Kings College London Strand London WC2R 2LS United Kingdom CAS Key Laboratory for Researches in Galaxies and Cosmology Department of Astronomy University of Science and Technology of China Hefei Anhui 230026 People’s Republic of China School of Astronomy School of Physical Sciences University of Science and Technology of China Hefei 230026 People’s Republic of China

We use big bang nucleosynthesis (BBN) data in order to impose constraints on higher-order modified gravity and, in particular, on (i) f(G) Gauss-Bonnet gravity and f(P) cubic gravities arising, respectively, through the use of the quadratic-curvature Gauss-Bonnet G term and the cubic-curvature combination, (ii) string-inspired quadratic Gauss-Bonnet gravity coupled to the dilaton field, (iii) models with string-inspired quartic curvature corrections, and (iv) running vacuum models. We perform a detailed investigation of the BBN epoch, and we calculate the deviations of the freeze-out temperature Tf in comparison to the ΛCDM paradigm. We then use the observational bound on |δTfTf| in order to extract constraints on the involved parameters of various models. We find that all models can satisfy the BBN constraints, and thus, they constitute viable cosmological scenarios, since they can additionally account for the dark energy sector and the late-time acceleration, in a quantitative manner, without spoiling the formation of light elements during the BBN epoch. Nevertheless, the obtained constraints on the relevant model parameters are quite strong.

关键词： Alternative gravity theories Big bang nucleosynthesis Dark energy

A Spatially resolved X-ray Polarization map of the Vela Pulsar Wind Nebula

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arXiv 2023年

作者： Liu, Kuan Xie, Fei Liu, Yi-Han Ng, Chi-Yung Bucciantini, Niccolò Romani, Roger W. Weisskopf, Martin C. Costa, Enrico Di Marco, Alessandro Monaca, Fabio La Muleri, Fabio Soffitta, Paolo Deng, Wei Meng, Yu Liang, En-Wei Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and Technology Guangxi University Nanning530004 China INAF Istituto di Astrofisica e Planetologia Spaziali Via del Fosso del Cavaliere 100 Roma00133 Italy Department of Physics The University of Hong Kong Pokfulam Hong Kong School of Physics and Astronomy Sun Yat-Sen University Guangzhou510275 China INAF Osservatorio Astrofisico di Arcetri Largo Enrico Fermi 5 Firenze50125 Italy 50019 Italy 50019 Italy Department of Physics Kavli Institute for Particle Astrophysics and Cosmology Stanford University StanfordCA94305 United States NASA Marshall Space Flight Center HuntsvilleAL35812 United States

In this paper, we present a full spatially resolved polarization map for the Vela Pulsar Wind Nebula (PWN) observed by IXPE. By employing effective background discrimination techniques, our results show a remarkably high degree of local polarization in the outskirt region, exceeding 60% (55%) with a probability of 95% (99%), which approaches the upper limit predicted by the synchrotron emission mechanism. The high degree of polarization suggests that the turbulent magnetic energy is at most 33% of the ordered one. In addition, the X-ray polarization map exhibits a toroidal magnetic field pattern that is consistent with the field revealed by radio observations across the entire nebula. This consistency reveals that the observed X-ray and radio emissions are radiated by electrons from the same magnetic field. Different from the Crab PWN, the consistency observed in the Vela PWN may be attributed to the interaction between the reverse shock of supernova blast wave and the PWN, which leads to a displacement between the synchrotron-cooled nebula and the fresh nebula close to the pulsar. These findings deepen our understanding of the structure and evolution of the Vela PWN, and the magnetohydrodynamic interaction in PWNe. © 2023, CC BY-NC-ND.

关键词： Pulsars

A common origin of muon g-2 anomaly, galaxy center GeV excess and AMS-02 anti-proton excess in the NMSSM

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arXiv 2021年

作者： Abdughani, Murat Fan, Yi-Zhong Feng, Lei Tsai, Yue-Lin Sming Wu, Lei Yuan, Qiang Key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Nanjing210023 China School of Astronomy and Space Science University of Science and Technology of China Anhui Hefei230026 China Joint Center for Particle Nuclear Physics and Cosmology Nanjing University - Purple Mountain Observatory Nanjing210093 China Department of Physics Institute of Theoretical Physics Nanjing Normal University Nanjing210023 China

The supersymmetric model is one of the most attractive extensions of the Standard Model of particle physics. In light of the most recently reported anomaly of the muon g-2 measurement by the FermiLab E989 experiment, and the excesses of gamma rays at the Galactic center observed by Fermi-LAT space telescope, as well as the antiproton excess observed by the Alpha Magnetic Spectrometer, we propose to account for all these anomalies or excesses in the Next-to-Minimal Supersymmetric Standard Model. Considering various experimental constraints including the Higgs mass, B-physics, collider data, dark matter relic density and direct detections, we find that a ∼ 60 GeV bino-like neutralino is able to successfully explain all these observations. Our scenario can be sensitively probed by future direct detection experiments. © 2021, CC BY.

关键词： Supersymmetry