English
Related papers

Related papers: An explanation for the muon and electron $g-2$ ano…

200 papers

Current experimental data from the $g-2$ muon factor, seems to show the necessity of physics beyond the Standard Model (SM), since the difference between SM and experimental predictions is 2.6$\sigma $. In the framework of the General Two…

High Energy Physics - Phenomenology · Physics 2013-05-29 Rodolfo A. Diaz , R. Martinez , J. -Alexis Rodriguez

We propose to jointly explain the electron/muon $g-2$ anomalies in the framework of anomaly mediated SUSY breaking (AMSB) scenario. Two Yukawa deflected AMSB models are proposed and discussed in depth: one with lepton-specific interactions…

High Energy Physics - Phenomenology · Physics 2022-08-31 Song Li , Zhuang Li , Fei Wang , Jin Min Yang

We construct a self-interacting dark matter model that could simultaneously explain the observed muon anomalous magnetic moment. It is based on a gauged U$(1)_{L_{\mu} - L_{\tau}}$ extension of the standard model, where we introduce a…

High Energy Physics - Phenomenology · Physics 2018-07-31 Ayuki Kamada , Kunio Kaneta , Keisuke Yanagi , Hai-Bo Yu

We study supersymmetric extra U(1) model with $S_4$ flavor symmetry. The flavor symmetry not only stabilizes proton but also suppresses the flavor changing processes without raising the supersymmetry breaking scale. After the flavor…

High Energy Physics - Phenomenology · Physics 2020-12-01 Yasuhiro Daikoku , Hiroshi Okada

The experimental value of the anomalous magnetic moment of the muon, as well as the LHCb anomalies, point towards new physics coupled non-universally to muons and electrons. Working in extra dimensional theories, which solve the electroweak…

High Energy Physics - Phenomenology · Physics 2017-05-24 Eugenio Megias , Mariano Quiros , Lindber Salas

We construct models with minimal field content that can simultaneously explain the muon g-2 anomaly and give the correct dark matter relic abundance. These models fall into two general classes, whether or not the new fields couple to the…

High Energy Physics - Phenomenology · Physics 2018-08-01 Lorenzo Calibbi , Robert Ziegler , Jure Zupan

We develop an economical theoretical framework for combined explanations of the flavor physics anomalies involving muons: $(g-2)_\mu$, $R_{K^{(*)}}$, and $b \to s \mu^+ \mu^-$ angular distributions and branching ratios, that was first…

High Energy Physics - Phenomenology · Physics 2022-05-18 Admir Greljo , Yotam Soreq , Peter Stangl , Anders Eller Thomsen , Jure Zupan

The anomalous magnetic moment of the muon has been measured to 0.5 ppm in a series of precision experiments at the Brookhaven Alternating Gradient Synchrotron. The individual results for each sign: a(mu+)= 11 659 204(7)(5) E-10 and a(mu-) =…

High Energy Physics - Phenomenology · Physics 2007-05-23 Priscilla Cushman

One of the main motivations to look beyond the SM is the discrepancy between the theoretical prediction and observation of anomalous magnetic moment of muon. Alleviating this tension between theory and experiment and satisfying the bounds…

High Energy Physics - Phenomenology · Physics 2021-03-24 Nivedita Ghosh , Jayita Lahiri

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…

High Energy Physics - Phenomenology · Physics 2015-06-19 Gaurav Tomar , Subhendra Mohanty

We investigate the impact of extra leptons on observed tensions in the muon $g-2$ and the first-row CKM unitarity. By introducing a new SU(2)$_L$ doublet lepton and a SU(2)$_L$ triplet lepton, we find that both of the tensions can be…

High Energy Physics - Phenomenology · Physics 2020-08-26 Motoi Endo , Satoshi Mishima

In this study, we investigate the anomalous magnetic moment of the muon $(g_\mu-2)$ as reported by Fermilab (FNAL), along with the recent measurement of the $W$-boson mass by the CDF-II collaboration. Both findings show significant…

High Energy Physics - Phenomenology · Physics 2024-01-05 Rachid Benbrik , Mohammed Boukidi , Bouzid Manaut

Minimal gauged U(1)$_{L_{\mu}-L_{\tau}}$ models can provide for an additional source for the muon anomalous magnetic moment however it is difficult to accommodate the discrepancy in the electron magnetic moment in tandem. Owing to the…

High Energy Physics - Phenomenology · Physics 2021-04-07 Heerak Banerjee , Bhaskar Dutta , Sourov Roy

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…

High Energy Physics - Phenomenology · Physics 2023-02-21 Seyed Yaser Ayazi , Ahmad Mohamadnejad

We have studied a left-right symmetric model with mirror fermions based in a grand unified SU(7) model in order to account for the muon anomaly. The Higgs sector of the model contains two Higgs doublets and the hierarchy condition…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. Chavez , J. A. Martins Simoes

We show that new physics explanations of the muon $g-2$ anomaly by the contributions of new leptons mediated by the standard model Higgs boson necessarily lead to large rates for $\mu^+ \mu^- \to hh$ and $\mu^+ \mu^- \to hhh$ irrespectively…

High Energy Physics - Phenomenology · Physics 2021-11-24 Radovan Dermisek , Keith Hermanek , Navin McGinnis

We show in this paper that, in a $U(1)$-symmetric two-Higgs-doublet model (2HDM), the two additional neutral Higgs bosons would become nearly degenerate in the large $\tan\beta$ regime, under the combined constraints from both theoretical…

High Energy Physics - Phenomenology · Physics 2021-04-12 Shao-Ping Li , Xin-Qiang Li , Ya-Dong Yang

Two Higgs doublet models are attractive scenarios for physics beyond the Standard Model. In particular, lepton-specific manifestations remain contenders to explain the observed discrepancy between the anomalous magnetic moment of the muon…

High Energy Physics - Phenomenology · Physics 2023-01-11 Oliver Atkinson , Matthew Black , Christoph Englert , Alexander Lenz , Aleksey Rusov

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

We propose a gauged $U(1)_{B-L}$ extended two Higgs doublet model to explain both neutrino mass and lepton anomalous magnetic moments ($g-2$). Neutrino mass is generated via an inverse seesaw mechanism by introducing singlet fermions.…

High Energy Physics - Phenomenology · Physics 2022-04-06 Tanmoy Mondal , Hiroshi Okada