English
Related papers

Related papers: Explaining $(g-2)_{\mu}$ with Multi-TeV Sleptons

200 papers

The electron and muon number violating muonium-antimuonium oscillation process in an extended Minimal Supersymmetric Standard Model is investigated. The Minimal Supersymmetric Standard Model is modified by the inclusion of three…

High Energy Physics - Phenomenology · Physics 2009-01-16 Boyang Liu

We consider a supersymmetric type-I seesaw framework with non-universal scalar masses at the GUT scale to explain the long-standing discrepancy of the anomalous magnetic moment of the muon. We find that it is difficult to accommodate the…

High Energy Physics - Phenomenology · Physics 2020-06-24 Chengcheng Han , M. L. López-Ibáñez , Aurora Melis , Óscar Vives , Lei Wu , Jin Min Yang

We study the Two-Higgs-Doublet Model with the aligned Yukawa sector (A2HDM) in light of the observed excess measured in the muon anomalous magnetic moment. We take into account the existing theoretical and experimental constraints with…

High Energy Physics - Phenomenology · Physics 2016-03-23 Tao Han , Sin Kyu Kang , Joshua Sayre

We study an extension of the minimal gauged $L_{\mu}-L_{\tau}$ model in order to explain the anomalous magnetic moments of muon and electron simultaneously. Presence of an additional scalar doublet $\eta$ and an in-built $Z_2$ symmetry…

High Energy Physics - Phenomenology · Physics 2022-04-28 Debasish Borah , Manoranjan Dutta , Satyabrata Mahapatra , Narendra Sahu

Recently, the E821 experiment at the Brookhaven National Laboratory announced their latest result of their muon g-2 measurement which is about 2.6-\sigma away from the standard model prediction. Taking this result seriously, we examine the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Shinji Komine , Takeo Moroi , Masahiro Yamaguchi

The recent precise measurement of the $W$-mass by the CDF II collaboration is indicative of new physics beyond the Standard Model. On the other hand, a resolution of the longstanding muon $g-2$ anomaly also calls for additional dynamics. In…

High Energy Physics - Phenomenology · Physics 2022-06-24 Nabarun Chakrabarty

The E989 experiment at the Fermi National Laboratory reported a 4.2$\sigma$ discrepancy between the measured magnetic dipole moment of the muon, and its prediction in the Standard Model (SM). In this study, we address the anomaly by…

High Energy Physics - Phenomenology · Physics 2021-12-17 Jan Tristram Acuña , Patrick Stengel , Piero Ullio

We explain anomalies currently present in various data samples used for the measurement of the anomalous magnetic moment of electron ($a_e$) and muon ($a_\mu$) in terms of an Aligned 2-Higgs Doublet Model with right-handed neutrinos. The…

High Energy Physics - Phenomenology · Physics 2021-03-24 Luigi Delle Rose , Shaaban Khalil , Stefano Moretti

We investigate whether the Minimal Supersymmetric Standard Model with the scalar masses of the third generation distinct from the first two, in order to be able to accommodate the muon anomalous magnetic moment, is consistent with the…

High Energy Physics - Phenomenology · Physics 2019-12-06 Mureed Hussain , Rizwan Khalid

We discuss the Type-X (lepton-specific) two Higgs doublet model as a solution of the anomaly of the muon $g-2$. We consider various experimental constraints on the parameter space such as direct searches for extra Higgs bosons at the LEP II…

High Energy Physics - Phenomenology · Physics 2015-11-04 Tomohiro Abe , Ryosuke Sato , Kei Yagyu

At present, there are outstanding discrepancies between standard model predictions and measurements of the muon's $g-2$ and several $B$-meson properties. We resolve these anomalies by considering a two-Higgs-doublet model extended to…

High Energy Physics - Phenomenology · Physics 2020-02-12 Alakabha Datta , Jonathan L. Feng , Saeed Kamali , Jacky Kumar

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…

High Energy Physics - Phenomenology · Physics 2021-10-11 Kwang Sik Jeong , Junichiro Kawamura , Chan Beom Park

We consider a type I or type X two Higgs doublets model with a modified lepton sector. The generalized lepton sector is also flavor conserving but with the new Yukawa couplings completely decoupled from lepton mass proportionality. The…

High Energy Physics - Phenomenology · Physics 2023-02-08 Francisco J. Botella , Fernando Cornet-Gomez , Carlos Miró , Miguel Nebot

The Standard Model (SM) is augmented with a $\mathrm{U}(1)_{B-3L_\mu} $ gauge symmetry spontaneously broken above the TeV scale when an SM-singlet scalar condenses. Scalar leptoquarks $S_{1(3)} = (\overline{\mathbf{3}},\, \mathbf{1}…

High Energy Physics - Phenomenology · Physics 2021-08-04 Admir Greljo , Peter Stangl , Anders Eller Thomsen

We investigate a new type of a two-Higgs-doublet model as a solution of the muon $g-2$ anomaly. We impose a softly-broken $Z_4$ symmetry to forbid tree level flavor changing neutral currents in a natural way. This $Z_4$ symmetry restricts…

High Energy Physics - Phenomenology · Physics 2017-08-02 Tomohiro Abe , Ryosuke Sato , Kei Yagyu

The discovery of the Higgs boson at the Large Hadron Collider (LHC) has a great impact on the minimal supersymmetric extension of the Standard Model (MSSM). In the context of the constrained MSSM (CMSSM) and its extension with non-universal…

High Energy Physics - Phenomenology · Physics 2014-07-23 Nobuchika Okada , Shabbar Raza , Qaisar Shafi

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…

High Energy Physics - Phenomenology · Physics 2015-07-08 Gaurav Tomar

The longstanding muon $(g-2)$ anomaly, as well as the persistent hints of lepton flavor universality violation in $B$-meson decays, could be signaling new physics beyond the Standard Model (SM). A minimal $R$-parity-violating supersymmetric…

High Energy Physics - Phenomenology · Physics 2023-06-21 Yoav Afik , P. S. Bhupal Dev , Amarjit Soni , Fang Xu

In the framework of gauge mediation models, we investigate scenarios with heavy squarks and light sleptons, motivated by the recent discovery of the Higgs boson and the deviation of the muon anomalous magnetic moment (g-2) from the SM…

High Energy Physics - Phenomenology · Physics 2015-06-11 Masahiro Ibe , Shigeki Matsumoto , Tsutomu T. Yanagida , Norimi Yokozaki

We consider a simple extension of the Standard Model (SM) with a vector-like lepton and a local $U(1)'$ symmetry, motivated by the recent experimental anomalies in the muon $g-2$ and the $W$ boson mass. The $U(1)'$ symmetry is spontaneously…

High Energy Physics - Phenomenology · Physics 2022-08-24 Hyun Min Lee , Kimiko Yamashita
‹ Prev 1 3 4 5 6 7 10 Next ›