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We consider the interplay of the muon $g-2$ anomaly and the proton decay in the SUSY SU(5) GUTs with generation-independent scalar soft masses. In these scenarios, we introduce a number of $\bf 5+{\bar 5}$ messenger fields with…

高能物理 - 唯象学 · 物理学 2024-04-02 Seong-Sik Kim , Hyun Min Lee , Sung-Bo Sim

We consider two distinct classes of Yukawa unified supersymmetric SO(10) models with non-universal and universal soft supersymmetry breaking (SSB) gaugino masses at M_{\rm GUT}. In both cases, we assume that the third family SSB sfermion…

高能物理 - 唯象学 · 物理学 2014-02-21 M. Adeel Ajaib , Ilia Gogoladze , Qaisar Shafi , Cem Salih Un

We propose to generate non-universal gaugino masses in SU(5) GUT with the generalized Planck-scale mediation SUSY breaking mechanism, in which the non-universality arises from proper wavefunction normalization with lowest component VEVs of…

高能物理 - 唯象学 · 物理学 2018-12-26 Fei Wang , Kun Wang , Jin Min Yang , Jingya Zhu

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

The natural supersymmetry (SUSY) requires that stop, sbottom, and gluino be around one TeV or lighter. By using the direct SUSY search bounds from both ATLAS and CMS Collaborations, we examine the constraints on the natural SUSY in the Next…

高能物理 - 唯象学 · 物理学 2014-01-29 Taoli Cheng , Jinmian Li , Tianjun Li , Qi-Shu Yan

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…

高能物理 - 唯象学 · 物理学 2015-11-04 Tomohiro Abe , Ryosuke Sato , Kei Yagyu

We briefly review the super-natural supersymmetry (SUSY), which provides a most promising solution to the SUSY electroweak fine-tuning problem. In particular, we address its subtle issues as well. Unlike the Minimal Supersymmetric Standard…

高能物理 - 唯象学 · 物理学 2016-06-15 Tianjun Li , Shabbar Raza , Xiao-Chuan Wang

A light pseudoscalar of the lepton-specific 2HDM can enhance the muon g-2, but suffer from various constraints easily, such as the 125.5 GeV Higgs signals, non-observation of additional Higgs at the collider and even $B_s\to \mu^+\mu^-$. In…

高能物理 - 唯象学 · 物理学 2015-06-11 Lei Wang , Xiao-Fang Han

The semi-constrained NMSSM (scNMSSM) extends the MSSM by a singlet field, and requires unification of the soft SUSY breaking terms in the squark and slepton sectors, while it allows that in the Higgs sector to be different. We try to…

高能物理 - 唯象学 · 物理学 2018-11-27 Kun Wang , Fei Wang , Jingya Zhu , Quanlin Jie

Inspired by the recent measurements of the muon and electron anomalous magnetic moments, the rapid progress of the LHC search for supersymmetry, and the significantly improved sensitivities of dark matter direct detection experiments, we…

高能物理 - 唯象学 · 物理学 2023-06-13 Junjie Cao , Lei Meng , Yuanfang Yue

The supersymmetric model is one of the most attractive extensions of the Standard Model of particle physics. In light of the most recently reported anomaly of the muon g-2 measurement by the FermiLab E989 experiment, and the excesses of…

高能物理 - 唯象学 · 物理学 2021-08-11 Murat Abdughani , Yi-Zhong Fan , Lei Feng , Yue-Lin Sming Tsai , Lei Wu , Qiang Yuan

Despite being a simple and well-motivated thermal relic scenario, coannihilation dark matter (DM) has remained largely unexplored experimentally due to the difficulty of probing its nearly degenerate mass spectrum. Recent LHC searches,…

高能物理 - 唯象学 · 物理学 2026-03-20 Koichi Hamaguchi , Atsuya Niki , Kwok Hei To

An extended Higgs sector may allow for new scalar particles well below the weak scale. In this work, we present a detailed study of a light scalar $S$ with enhanced coupling to leptons, which could be responsible for the existing…

高能物理 - 唯象学 · 物理学 2017-04-12 Brian Batell , Nicholas Lange , David McKeen , Maxim Pospelov , Adam Ritz

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_\mu with a mass in the sub-GeV range, which is coupled…

高能物理 - 唯象学 · 物理学 2015-05-21 S. N. Gninenko , N. V. Krasnikov , V. A. Matveev

A discrepancy between the measured anomalous magnetic moment of the muon $(g - 2)_{\mu}$ and computed Standard Model value now stands at a combined $4.2\sigma$ following experiments at Brookhaven National Lab (BNL) and the Fermi National…

高能物理 - 唯象学 · 物理学 2021-11-17 Joseph L. Lamborn , Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos

The predictions for the mass of the light CP-even Higgs are investigated in the context of a simple extension of the Minimal Supersymmetric Standard Model where the baryon and lepton numbers are local gauge symmetries. This theory predicts…

高能物理 - 唯象学 · 物理学 2012-05-04 Pavel Fileviez Perez

The deviation of the measured value of the muon anomalous magnetic moment from the standard model prediction can be completely explained by mixing of the muon with extra vectorlike leptons, L and E, near the electroweak scale. This mixing…

高能物理 - 唯象学 · 物理学 2013-08-09 Radovan Dermisek , Aditi Raval

We study bounds on a neutral component of weak doublet scalar lepton. A typical example of such particle is sneutrinos in supersymmetric models. Using constraints from invisible Higgs decays we place a lower bound of approximately $m_h/2$.…

高能物理 - 唯象学 · 物理学 2021-05-26 Linda M. Carpenter , Humberto B. Gilmer , Junichiro Kawamura

This work summarizes and puts in an overall perspective studies done within CMS concerning the discovery potential for squarks and gluinos, sleptons, charginos and neutralinos, SUSY dark matter, lightest Higgs, sparticle mass determination…

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…

高能物理 - 唯象学 · 物理学 2020-06-24 Chengcheng Han , M. L. López-Ibáñez , Aurora Melis , Óscar Vives , Lei Wu , Jin Min Yang