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Related papers: A Dark Matter Relic From Muon Anomalies

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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…

High Energy Physics - Phenomenology · Physics 2018-07-03 S. N. Gninenko , N. V. Krasnikov

In the light of the recent result of the Muon g-2 experiment and the update on the test of lepton flavour universality $R_K$ published by the LHCb collaboration, we systematically build and discuss a set of models with minimal field content…

High Energy Physics - Phenomenology · Physics 2021-08-11 Giorgio Arcadi , Lorenzo Calibbi , Marco Fedele , Federico Mescia

We propose a new class of $U(1)_{\mu-\tau}$ gauged model that can explain recent flavor anomalies such as muon $g-2$, $b\to s\mu^+ \mu^-$, as well as include a scalar dark matter candidate while satisfying all the phenomenological…

High Energy Physics - Phenomenology · Physics 2022-06-01 P. Ko , Takaaki Nomura , Hiroshi Okada

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…

High Energy Physics - Phenomenology · Physics 2020-10-28 Kai-Feng Chen , Cheng-Wei Chiang , Kei Yagyu

The mystery of dark matter remains an unsettled problem of particle physics. On top of that, experiments show a persistent contention of the muon anomalous magnetic moment (AMM) relative to the Standard Model (SM) prediction. In this work,…

High Energy Physics - Phenomenology · Physics 2021-10-20 Talal Ahmed Chowdhury , Shaikh Saad

The Lepton Portal Dark Matter model, in which dark matter states only coupling to the charged leptons, can explain the excess of the muon anomalous magnetic moment measured by the Muon $g - 2$ experiment. In this paper, we demonstrate that…

High Energy Physics - Phenomenology · Physics 2021-04-08 Yang Bai , Joshua Berger

In view of ongoing measurements of the Higgs-like boson at the LHC and direct searches for dark matter, we explore the possibility of accommodating the potential results in a simple new-physics model with discrete gauge symmetry as well as…

High Energy Physics - Phenomenology · Physics 2015-03-20 Cheng-Wei Chiang , Takaaki Nomura , Jusak Tandean

We investigate the possibility that both dark matter and the long-standing discrepancy in the anomalous magnetic moment of the muon may be explained within the MSSM. In light of the stringent bounds from direct detection, we argue that the…

High Energy Physics - Phenomenology · Physics 2018-09-17 Peter Cox , Chengcheng Han , Tsutomu T. Yanagida

The detection of ultralight dark matter through interactions with nucleons, electrons, and photons has been explored in depth. In this work we propose to use precision muon experiments, specifically muon g-2 and electric dipole moment…

High Energy Physics - Phenomenology · Physics 2021-01-04 Ryan Janish , Harikrishnan Ramani

We propose a new physics model which has a cold dark matter candidate and can explain the $b \to s \mu^+\mu^-$ anomaly at the same time. Our model includes a scalar quark $\widetilde{q}$ and a scalar lepton $\widetilde{\ell}$ which are…

High Energy Physics - Phenomenology · Physics 2018-11-12 Seungwon Baek , Chaehyun Yu

A new measurement of the muon anomalous magnetic moment has been reported by the Fermilab Muon g-2 collaboration and shows a $4.2\sigma$ departure from the most precise and reliable calculation of this quantity in the Standard Model.…

High Energy Physics - Phenomenology · Physics 2022-01-17 Sebastian Baum , Marcela Carena , Nausheen R. Shah , Carlos E. M. Wagner

Motivated by the result of the Muon g-2 experiment and the long-standing anomalies in semileptonic $B$ meson decays, we systematically build a class of minimal models that can address both experimental results thanks to the contributions of…

High Energy Physics - Phenomenology · Physics 2021-10-27 Giorgio Arcadi , Lorenzo Calibbi , Marco Fedele , Federico Mescia

We demonstrate that the recent measurement of the anomalous magnetic moment of the muon and dark matter can be simultaneously explained within the Minimal Supersymmetric Standard Model. Dark matter is a mostly-bino state, with the relic…

High Energy Physics - Phenomenology · Physics 2021-10-29 Peter Cox , Chengcheng Han , Tsutomu T. Yanagida

A possible extension of the Standard Model able to explain the recent measurement of the anomalous magnetic moment of the muon consists in adding a gauged $U(1)_{L_{\mu}-L_{\tau}}$ symmetry. If the dark matter particle is charged under this…

High Energy Physics - Phenomenology · Physics 2024-10-18 Pablo Figueroa , Gonzalo Herrera , Fredy Ochoa

We consider right-handed neutrino dark matter $N_1$ in local $U(1)_{L_\mu-L_\tau}$-extended Ma model. With the light $U(1)_{\mu-\tau}$ gauge boson ($m_{Z'} \sim {\cal O}(100)$ MeV) and small $U(1)_{\mu-\tau}$ gauge coupling ($g_{Z'}\sim…

High Energy Physics - Phenomenology · Physics 2016-03-09 Seungwon Baek

We propose a set of precision muon-related observables that serve as a tool to constrain new physics models. Using LEP's precision measurements on the $Z$-boson pole, we derive bounds on the new physics quantum contributions to the decay $Z…

High Energy Physics - Phenomenology · Physics 2023-10-11 Gabriel Lourenço , André Milagre , Rui Santos , João P. Silva

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…

High Energy Physics - Phenomenology · Physics 2024-02-07 Jie Wang , Jinghong Ma , Jing Gao , Xiao-Fang Han , Lei Wang

We present a dark sector model based on gauging the $L_\mu - L_\tau$ symmetry that addresses anomalies in $b \rightarrow s \mu^+ \mu^-$ decays and that features a particle dark matter candidate. The dark matter particle candidate is a…

High Energy Physics - Phenomenology · Physics 2017-03-14 Wolfgang Altmannshofer , Stefania Gori , Stefano Profumo , Farinaldo S. Queiroz

We explore a class of models which can provide a common origin for the recently observed evidence for lepton flavor universality violation in $b \to s l^+ l^- $ decays, the dark matter (DM) problem and the long-standing muon $(g-2)$…

High Energy Physics - Phenomenology · Physics 2020-10-14 Da Huang , António P. Morais , Rui Santos

We revisit a class of Z' explanations of the anomalies found by the LHCb collaboration in $B$ decays, and show that the scenario is tightly constrained by a combination of constraints: (i) LHC searches for di-muon resonances, (ii)…

High Energy Physics - Phenomenology · Physics 2017-05-02 Ben Allanach , Farinaldo S. Queiroz , Alessandro Strumia , Sichun Sun
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