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相关论文: Probing new physics for $(g-2)_\mu$ and gravitatio…

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Combining the dark matter and muon $g-2$ anomaly, we study the $U(1)_{L_\mu-L_\tau}$ breaking phase transition, gravitational wave spectra, and the direct detection at the LHC in an extra $U(1)_{L_\mu-L_\tau}$ gauge symmetry extension of…

高能物理 - 唯象学 · 物理学 2024-02-07 Jie Wang , Jinghong Ma , Jing Gao , Xiao-Fang Han , Lei Wang

We discuss gravitational waves in an electroweakly interacting vector dark matter model. In the model, the electroweak gauge symmetry is extended to SU(2)$_0 \times$ SU(2)$_1 \times$SU(2)$_2 \times$ U(1)$_Y$ and spontaneously broken into…

高能物理 - 唯象学 · 物理学 2024-06-14 Tomohiro Abe , Katsuya Hashino

We consider an extension of the Standard Model that accounts for the muon $g-2$ tension and neutrino masses and study in detail dark matter phenomenology. The model under consideration includes a WIMP and a FIMP scalar dark matter…

高能物理 - 唯象学 · 物理学 2022-06-22 Francesco Costa , Sarif Khan , Jinsu Kim

With some explicitly $Z_3$ breaking terms in the NMSSM effective superpotential and scalar potential, domain walls (DWs) from spontaneously breaking of the discrete symmetry in approximate $Z_3$-invariant NMSSM can collapse and lead to…

高能物理 - 唯象学 · 物理学 2024-04-18 Ming Xia Huang , Fei Wang , Ying Kai Zhang

The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon $g-2$ experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL…

高能物理 - 唯象学 · 物理学 2021-10-11 Kwang Sik Jeong , Junichiro Kawamura , Chan Beom Park

We propose a model to explain the W boson mass anomaly reported by the CDFII collaboration that would suggest new physics (NP). We introduce exotic fermions; one isospin doublet vector-like lepton, one isospin singlet singly-charged…

高能物理 - 唯象学 · 物理学 2023-05-02 Keiko I. Nagao , Takaaki Nomura , Hiroshi Okada

We show that the recent detection of a gravitational wave (GW) background reported by various pulsar timing array (PTA) collaborations including NANOGrav-15yr, PPTA, EPTA, and CPTA can be explained in terms of first order phase transitions…

宇宙学与河外天体物理 · 物理学 2024-01-31 Andrea Addazi , Yi-Fu Cai , Antonino Marciano , Luca Visinelli

We propose a radiative seesaw model with a hidden $U(1)$ gauge symmetry. In order to have anomaly cancellations, we need to introduce several new fermions that contribute to muon anomalous magnetic dipole moment $(g-2)_\mu$ as well as…

高能物理 - 唯象学 · 物理学 2023-02-15 Ujjal Kumar Dey , Hiroshi Okada

We investigate the potential stochastic gravitational waves from first-order electroweak phase transitions in a model with pseudo-Nambu-Goldstone dark matter and two Higgs doublets. The dark matter candidate can naturally evade direct…

高能物理 - 唯象学 · 物理学 2023-01-11 Zhao Zhang , Chengfeng Cai , Xue-Min Jiang , Yi-Lei Tang , Zhao-Huan Yu , Hong-Hao Zhang

Gravitational wave (GW) oscillations occur whenever there are additional tensor modes interacting with the perturbations of the metric coupled to matter. These extra modes can arise from new spin-2 fields (as in e.g. bigravity theories) or…

宇宙学与河外天体物理 · 物理学 2020-04-22 Jose Beltrán Jiménez , Jose María Ezquiaga , Lavinia Heisenberg

We revisit the decay of the orbital period in binary systems that occurs due to the emission of gravitational waves in the context of modified gravity models where the coupling $G_{gw}$ between matter and on-shell gravitons is allowed to…

广义相对论与量子宇宙学 · 物理学 2022-11-22 Diego Santos de Jesus , Hermano Velten , Federico Piazza

The discovery of gravitational waves opens new opportunities to test BSM physics. In particular, the production of a stochastic background of primordial gravitational waves could provide a signature of the generation of the right-right…

高能物理 - 唯象学 · 物理学 2022-05-13 Pasquale Di Bari

We search for a first-order phase transition gravitational wave signal in 45 pulsars from the NANOGrav 12.5 year dataset. We find that the data can be modeled in terms of a strong first order phase transition taking place at temperatures…

The long-standing $4.2 \, \sigma$ muon $g-2$ anomaly may be the result of a new particle species which could also couple to dark matter and mediate its annihilations in the early universe. In models where both muons and dark matter carry…

高能物理 - 唯象学 · 物理学 2022-04-21 Ian Holst , Dan Hooper , Gordan Krnjaic

A rather minimal possibility is that dark matter consists of the gauge bosons of a spontaneously broken symmetry. Here we explore the possibility of detecting the gravitational waves produced by the phase transition associated with such…

高能物理 - 唯象学 · 物理学 2019-05-30 Iason Baldes , Camilo Garcia-Cely

We study the stochastic background of gravitational waves which accompany the sudden freeze-out of dark matter triggered by a cosmological first order phase transition that endows dark matter with mass. We consider models that produce the…

高能物理 - 唯象学 · 物理学 2021-02-03 Danny Marfatia , Po-Yan Tseng

We consider a standard model extension equipped with a dark sector where the $U(1)_X^{}$ Abelian gauge symmetry is spontaneously broken by the dark Higgs mechanism. In this framework, we investigate patterns of the electroweak phase…

高能物理 - 唯象学 · 物理学 2018-07-02 Katsuya Hashino , Mitsuru Kakizaki , Shinya Kanemura , Pyungwon Ko , Toshinori Matsui

We show that gravitational wave emission from neutron star binaries can be used to discover any generic long-ranged muonic force due to the large inevitable abundance of muons inside neutron stars. As a minimal consistent example, we focus…

高能物理 - 唯象学 · 物理学 2020-07-14 Jeff A. Dror , Ranjan Laha , Toby Opferkuch

In the L_{\mu} - L_{\tau} model the 3.6$\sigma$ discrepancy between the predicted and measured values of the anomalous magnetic moment of positive muons can be explained by the existence of a new dark boson Z' with a mass in the sub-GeV…

高能物理 - 唯象学 · 物理学 2018-07-03 S. N. Gninenko , N. V. Krasnikov
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