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学者姓名：王雯宇
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摘要 ：
A novel detection of sub-GeV dark matter is proposed in the paper. The electron cloud is boosted by the dark matter and emits an electron when it is dragged back by the heavy nucleus, namely the coherent scattering of the electron cloud of the atom. The survey in the x-ray diffraction shows that the atomic form factors are much more complex than the naive consideration. The results of the relativistic Hartree-Fock (RHF) method give non-trivial shapes of the atoms. The detailed calculation of the recoil of the electron cloud, the kinetics, the fiducial cross section and the corresponding calculation of detection rate are given analytically. The numerical results show that the limits of the RHF form factors are much more stringent than the recoil of a single electron, almost 4 orders stronger, and also give tight limitations compared to the Migdal effect below about several hundred MeV. The physical picture and the corresponding results are promising and need further exploration.
关键词 ：
form factor form factor coherent scattering coherent scattering dark matter dark matter
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| GB/T 7714 | Guo, Ji-Heng , Sun, Yu-Xuan , Wang, Wenyu et al. Can sub-GeV dark matter coherently scatter on the electrons in the atom? [J]. | COMMUNICATIONS IN THEORETICAL PHYSICS , 2023 , 75 (1) . |
| MLA | Guo, Ji-Heng et al. "Can sub-GeV dark matter coherently scatter on the electrons in the atom?" . | COMMUNICATIONS IN THEORETICAL PHYSICS 75 . 1 (2023) . |
| APA | Guo, Ji-Heng , Sun, Yu-Xuan , Wang, Wenyu , Wu, Ke-Yun . Can sub-GeV dark matter coherently scatter on the electrons in the atom? . | COMMUNICATIONS IN THEORETICAL PHYSICS , 2023 , 75 (1) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
We study the Standard Model and the new physics predictions for the lepton-flavour-universality violating (LFUV) ratios in various b ?& nbsp;sl(+)l(-& nbsp;)channels with scalar, pseudoscalar, vector, axial-vector, and A baryon final states, considering both unpolarized and polarized final state hadrons. In order to formulate physical observables, we use the model independent effective Hamiltonian approach and employ the helicity formalism. We provide the explicit expressions of the helicity amplitudes in terms of the Wilson coefficients and the hadronic form factors by using the same kinematical configuration and polarization conventions for all the decay channels. We perform the numerical analysis with new physics scenarios selected from the recent global fits to b ?& nbsp;sl(+)l(-& nbsp;)data, having specific new physics model interpretations. We find that some of the LFUV ratios for these complementary channels in different kinematical regions have high sensitivity to new physics and the future measurements of them in Belle II and LHCb experiments, along with testing new physics/LFUV, can help to distinguish among some of the different new physics possibilities. (C)& nbsp;2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).& nbsp;
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| GB/T 7714 | Bhutta, Faisal Munir , Huang, Zhuo-Ran , Lu, Cai-Dian et al. New physics in b ? s(ll) anomalies and its implications for the complementary neutral current decays [J]. | NUCLEAR PHYSICS B , 2022 , 979 . |
| MLA | Bhutta, Faisal Munir et al. "New physics in b ? s(ll) anomalies and its implications for the complementary neutral current decays" . | NUCLEAR PHYSICS B 979 (2022) . |
| APA | Bhutta, Faisal Munir , Huang, Zhuo-Ran , Lu, Cai-Dian , Paracha, M. Ali , Wang, Wenyu . New physics in b ? s(ll) anomalies and its implications for the complementary neutral current decays . | NUCLEAR PHYSICS B , 2022 , 979 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Motivated by the current strong constraints on the spin-independent dark matter (DM)-nucleus scattering, we investigate the spin-dependent (SD) interactions of the light Majorana DM with the nucleus mediated by an axial-vector boson. Due to the small nucleus recoil energy, the ionization signals have now been used to probe the light dark matter particles in direct detection experiments. With the existing ionization data, we derive the exclusion limits on the SD DM-nucleus scattering through Migdal effect in the MeV-GeV DM mass range. It is found that the lower limit of the DM mass can reach about several MeVs. Due to the momentum transfer correction induced by the light mediator, the bounds on the SD DM-nucleus scattering cross sections can be weakened in comparison with the heavy mediator. (C) 2022 The Author(s). Published by Elsevier B.V.
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| GB/T 7714 | Wang, Wenyu , Wu, Ke-Yun , Wu, Lei et al. Direct detection of spin-dependent sub-GeV dark matter via Migdal effect [J]. | NUCLEAR PHYSICS B , 2022 , 983 . |
| MLA | Wang, Wenyu et al. "Direct detection of spin-dependent sub-GeV dark matter via Migdal effect" . | NUCLEAR PHYSICS B 983 (2022) . |
| APA | Wang, Wenyu , Wu, Ke-Yun , Wu, Lei , Zhu, Bin . Direct detection of spin-dependent sub-GeV dark matter via Migdal effect . | NUCLEAR PHYSICS B , 2022 , 983 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The decay t -> cV (V = gamma, Z, g) processes in mirror twin Higgs models with colorless top partners are studied in this paper. We report that the branching ratios of these decays can strongly affect the standard model expectations in some parameter spaces and may be detectable according to the current precision electroweak measurements. Thus, constraints on the model parameters may be obtained from the branching fraction of the decay processes, which may serve as a robust detection tool for this new physics model.
关键词 ：
branching ratios branching ratios mirror twin Higgs models mirror twin Higgs models t -> cV t -> cV
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| GB/T 7714 | Bie, Su-Ya , Liu, Guo-Li , Wang, Wenyu . Top rare decays t -> cV in mirror twin Higgs models [J]. | CHINESE PHYSICS C , 2021 , 45 (1) . |
| MLA | Bie, Su-Ya et al. "Top rare decays t -> cV in mirror twin Higgs models" . | CHINESE PHYSICS C 45 . 1 (2021) . |
| APA | Bie, Su-Ya , Liu, Guo-Li , Wang, Wenyu . Top rare decays t -> cV in mirror twin Higgs models . | CHINESE PHYSICS C , 2021 , 45 (1) . |
| 导入链接 | NoteExpress RIS BibTex |
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| GB/T 7714 | Wang, Wenyu , Wu, Lei , Yang, Jin Min et al. Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection (vol 12, 072, 2020) [J]. | JOURNAL OF HIGH ENERGY PHYSICS , 2021 , (2) . |
| MLA | Wang, Wenyu et al. "Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection (vol 12, 072, 2020)" . | JOURNAL OF HIGH ENERGY PHYSICS 2 (2021) . |
| APA | Wang, Wenyu , Wu, Lei , Yang, Jin Min , Zhou, Hang , Zhu, Bin . Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection (vol 12, 072, 2020) . | JOURNAL OF HIGH ENERGY PHYSICS , 2021 , (2) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Very recently, the XENON1T Collaboration has reported an intriguing electron recoil excess, which may imply light dark matter. To interpret this anomaly, we propose the atmospheric dark matter (ADM) from the inelastic collision of cosmic rays (CRs) with the atmosphere. Because of the boost effect of high-energy CRs, we show that the light ADM can be fast moving and successfully fit the observed electron recoil spectrum through the ADM-electron scattering process. Meanwhile, our ADM predicts the scattering cross section sigma(e) similar to O(10(-38) - 10(-39) cm(2)) and thus can evade other direct detection constraints. The search for light meson rare decays, such as eta -> pi + (E) over bar (T), would provide a complementary probe of our ADM in the future.
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| GB/T 7714 | Su, Liangliang , Wang, Wenyu , Wu, Lei et al. Atmospheric dark matter and XENON1T excess [J]. | PHYSICAL REVIEW D , 2020 , 102 (11) . |
| MLA | Su, Liangliang et al. "Atmospheric dark matter and XENON1T excess" . | PHYSICAL REVIEW D 102 . 11 (2020) . |
| APA | Su, Liangliang , Wang, Wenyu , Wu, Lei , Yang, Jin Min , Zhu, Bin . Atmospheric dark matter and XENON1T excess . | PHYSICAL REVIEW D , 2020 , 102 (11) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Using the latest PandaX limits on the light dark matter (DM) with a light mediator, we check their implication on the parameter space of the general singlet extension of MSSM (withoutZ(3)symmetry), which can have a sufficient DM self-interaction to solve the small-scale structure problem. We find that the PandaX limits can tightly constrain the parameter space, depending on the coupling lambda between the singlet and doublet Higgs fields. For the singlet extension of MSSM withZ(3)symmetry, the so-called NMSSM, we also demonstrate the PandaX constraints on its parameter space, which gives a light DM with the correct relic density but without sufficient self-interaction to solve the small-scale structure problem. We find that in NMSSM, the GeV dark matter with a sub-GeV mediator is tightly constrained.
关键词 ：
dark matter dark matter direct detection direct detection small structure small structure supersymmetry supersymmetry
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| GB/T 7714 | Wang, Wenyu , Wu, Jia-Jun , Xiong, Zhao-Hua et al. PandaX limits on the light dark matter with a light mediator in the singlet extension of MSSM [J]. | CHINESE PHYSICS C , 2020 , 44 (6) . |
| MLA | Wang, Wenyu et al. "PandaX limits on the light dark matter with a light mediator in the singlet extension of MSSM" . | CHINESE PHYSICS C 44 . 6 (2020) . |
| APA | Wang, Wenyu , Wu, Jia-Jun , Xiong, Zhao-Hua , Zhao, Jun . PandaX limits on the light dark matter with a light mediator in the singlet extension of MSSM . | CHINESE PHYSICS C , 2020 , 44 (6) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Detections of non-gravitational interactions of massive dark matter (DM) with visible sector so far have given null results. The DM may communicate with the ordinary matter only through gravitational interaction. Besides, the majority of traditional direct detections have poor sensitivities for light DM because of the small recoil energy. Thanks to the high energy cosmic rays (CRs), the light DM can be boosted by scattering with CRs and thus may be detected in the ongoing experiments. In this work, we derive the exclusion limits on the cosmic ray boosted sub-GeV DM with gravitational mediator from the Xenon1T data. It turns out that a sizable region of such a cosmic ray boosted DM can be excluded by the current data.
关键词 ：
Phenomenology of Large extra dimensions Phenomenology of Large extra dimensions
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| GB/T 7714 | Wang, Wenyu , Wu, Lei , Yang, Jin Min et al. Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection [J]. | JOURNAL OF HIGH ENERGY PHYSICS , 2020 , (12) . |
| MLA | Wang, Wenyu et al. "Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection" . | JOURNAL OF HIGH ENERGY PHYSICS 12 (2020) . |
| APA | Wang, Wenyu , Wu, Lei , Yang, Jin Min , Zhou, Hang , Zhu, Bin . Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection . | JOURNAL OF HIGH ENERGY PHYSICS , 2020 , (12) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
引力波信号的探测再次验证了100多年前爱因斯坦创立的广义相对论理论.本专题共两篇,综述了广义相对论的理论基础,试图使读者由此理解光速和引力波速之间的关系.第一篇论文首先简介了广义相对论引力理论的原理,论文特别关注于广义相对论与狭义相对论之间的关系.在等效原理的基础上,本文重点说明了引力几何化思想,广义相对性原理的内容,广义光速不变原理的理解,坐标系和固有时、固有距离的关系等内容.后面论文回顾了构建爱因斯坦场方程逻辑过程,施瓦兹解及其检验等.
关键词 ：
光速不变原理 光速不变原理 引力场方程 引力场方程 相对性原理论 相对性原理论
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| GB/T 7714 | 王雯宇 , 许洋 . 光和引力波专题Ⅰ ——广义相对性原理、光速不变原理及引力论 [J]. | 物理与工程 , 2019 , 29 (1) : 53-73 . |
| MLA | 王雯宇 et al. "光和引力波专题Ⅰ ——广义相对性原理、光速不变原理及引力论" . | 物理与工程 29 . 1 (2019) : 53-73 . |
| APA | 王雯宇 , 许洋 . 光和引力波专题Ⅰ ——广义相对性原理、光速不变原理及引力论 . | 物理与工程 , 2019 , 29 (1) , 53-73 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本文对粒子物理理论中的粒子及其相互作用做了较为全面的综述.笔者尽可能不用物理公式来说明相关物理规律和思想,而是通过对称性与对称性破缺,对粒子物理理论所涉及的量子力学的解释以及对组成物质基元的理解进行描述.本文也对目前标准模型存在的问题进行了讨论.
关键词 ：
基本相互作用 基本相互作用 基本粒子 基本粒子 对称与破缺 对称与破缺 标准模型 标准模型
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| GB/T 7714 | 王丝雨 , 王雯宇 , 熊兆华 . 基本粒子和相互作用的标准模型简介 [J]. | 物理与工程 , 2019 , 29 (6) : 12-24 . |
| MLA | 王丝雨 et al. "基本粒子和相互作用的标准模型简介" . | 物理与工程 29 . 6 (2019) : 12-24 . |
| APA | 王丝雨 , 王雯宇 , 熊兆华 . 基本粒子和相互作用的标准模型简介 . | 物理与工程 , 2019 , 29 (6) , 12-24 . |
| 导入链接 | NoteExpress RIS BibTex |
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