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相关论文: Non-Abelian Vector Dark Matter and Lepton $g-2$

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Following a previous proposal, lepton number is considered as the result of a spontaneously broken non-Abelian gauge $SU(2)_N$ symmetry. New fermions are added to support this new symmetry, the spontaneous breaking of which allows these new…

高能物理 - 唯象学 · 物理学 2021-06-23 Ernest Ma

We propose a framework that addresses the origin of neutrino mass, explains the observed discrepancies in the electron and the muon anomalous magnetic moments (AMMs) data and incorporates the dark matter (DM) relic abundance. Both the…

高能物理 - 唯象学 · 物理学 2020-10-13 Sudip Jana , Vishnu P. K. , Werner Rodejohann , Shaikh Saad

We show that the recently reported anomalies in $b\to s\mu^+\mu^-$ transitions, as well as the long-standing $g_\mu-2$ discrepancy, can be addressed simultaneously by a new massive abelian gauge boson with loop-induced coupling to muons.…

高能物理 - 唯象学 · 物理学 2015-09-23 Geneviève Bélanger , Cédric Delaunay , Susanne Westhoff

The electron and muon anomalous magnetic moments (AMM) are measured in experiments and studied in the Standard Model (SM) with the highest precision accessible in particle physics. The comparison of the measured quantity with the SM…

高能物理 - 唯象学 · 物理学 2015-06-19 A. E. Dorokhov , A. E. Radzhabov , A. S. Zhevlakov

The classical conservation of the lepton number is an accidental symmetry present in the Standard Model (SM). Thus, we consider here a scenario where the SM is extended with a U(1) gauge group, promoting the lepton number to a local…

高能物理 - 唯象学 · 物理学 2025-03-06 Utkarsh Patel , Avnish , Sudhanwa Patra , Kirtiman Ghosh

In this analysis we demonstrate the freeze-in realization of a non-abelian vector boson dark matter (DM). We choose to elaborate an existing $SU(2)_N$ extension ($N$ stands for neutral) of the Standard Model (SM) with an additional…

高能物理 - 唯象学 · 物理学 2020-03-04 Basabendu Barman , Subhaditya Bhattacharya , Mohammadreza Zakeri

We propose a model to explain several muon-related experimental anomalies and the abundance of dark matter. We introduce an vector-like exotic lepton that form an iso-doublet and three right-handed Majorana fermions as an iso-singlet. A…

高能物理 - 唯象学 · 物理学 2019-06-19 Cheng-Wei Chiang , Hiroshi Okada

Vector boson dark matter (DM) appears in $SU(2)_N$ extension ($N$ stands for neutral) of Standard Model (SM) where an additional global $U(1)_P$ symmetry is assumed and results in a generalized lepton number defined as: $L=P+T_{3N}$.…

高能物理 - 唯象学 · 物理学 2017-12-27 Basabendu Barman , Subhaditya Bhattacharya , Sunando Kumar Patra , Joydeep Chakrabortty

Inspired by the recently new measurement of $(g-2)_{\mu}$ at FermiLab and reported upper bound for electron-dark matter (DM) recoil by the XENON1T collaboration, we revisited phenomenology of a light MeV scale vector dark matter in a…

高能物理 - 唯象学 · 物理学 2023-02-21 Seyed Yaser Ayazi , Ahmad Mohamadnejad

We studied an extension of the standard model with a fourth generation of fermions to explain the discrepancy in the muon $(g-2)$ and explain the positron excess seen in the AMS-02 experiment. We introduce a gauged $SU(2)_{HV}$ horizontal…

高能物理 - 唯象学 · 物理学 2015-06-19 Gaurav Tomar , Subhendra Mohanty

We investigate the prospects for probing asymmetric dark matter models through their gravitational wave signatures. We concentrate on a theory extending the Standard Model gauge symmetry by a non-Abelian group, under which leptons form…

高能物理 - 唯象学 · 物理学 2023-01-03 Bartosz Fornal , Erika Pierre

An extra $SU(2)_D$ gauge factor is added to the well-known left-right extension of the standard model (SM) of quarks and leptons. Under $SU(2)_L \times SU(2)_R \times SU(2)_D$, two fermion bidoublets $(2,1,2)$ and $(1,2,2)$ are assumed. The…

高能物理 - 唯象学 · 物理学 2018-03-28 Ernest Ma

The possibility of explaining the current value of the muon anomalous magnetic moment in models with an additional U(1) gauge symmetry that has kinetic mixing with hypercharge are increasingly constrained by dark photon searches at electron…

高能物理 - 唯象学 · 物理学 2015-06-12 Christopher D. Carone

A simple model is constructed based on the gauge symmetry $SU(3)_c \times SU(2)_L \times U(1)_Y \times SU(2)_\ell$, with only the leptons transforming nontrivially under $SU(2)_\ell$. The extended symmetry is broken down to the Standard…

高能物理 - 唯象学 · 物理学 2017-06-14 Bartosz Fornal

The muon anomalous magnetic moment measurement has, for more than a decade, been a long-standing anomaly hinting the physics beyond the Standard Model (BSM). The recently announced results from muon $g-2$ collaboration, corresponding to…

高能物理 - 唯象学 · 物理学 2021-07-29 Vedran Brdar , Sudip Jana , Jisuke Kubo , Manfred Lindner

We extended the standard model with a fourth generation of fermions to explain the discrepancy in the muon magnetic moment and to describe the positron excess observed by AMS-02 experiment. We introduce a gauged $SU(2)_{HV}$ horizontal…

高能物理 - 唯象学 · 物理学 2015-07-08 Gaurav Tomar

We propose simple models with a flavor-dependent global $U(1)_\ell$ and a discrete $\mathbb{Z}_2$ symmetries to explain the anomalies in the measured anomalous magnetic dipole moments of muon and electron, $(g-2)_{\mu,e}$, while…

高能物理 - 唯象学 · 物理学 2020-10-28 Kai-Feng Chen , Cheng-Wei Chiang , Kei Yagyu

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

The beyond-the-standard-model scenario in this work is motivated from the observations of neutrino masses, anomalous magnetic moments of electron and muon, and dark matter in the Universe. We explain these observations by extending the…

高能物理 - 唯象学 · 物理学 2026-05-11 Vandana Sahdev

We show that the existence of new, light gauge interactions coupled to Standard Model (SM) neutrinos give rise to an abundance of sterile neutrinos through the sterile neutrinos' mixing with the SM. Specifically, in the mass range of…

高能物理 - 唯象学 · 物理学 2014-06-18 Brian Shuve , Itay Yavin
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