中文
相关论文

相关论文: Muon g-2 in GMSB with Adjoint Messengers

200 篇论文

A 125 GeV Higgs renders the simpler GMSB models unnatural, essentially pushing the soft spectrum beyond the LHC reach. A direct coupling of the matter and messenger fields, that facilitates an enhanced mixing in the squark sector, is a way…

高能物理 - 唯象学 · 物理学 2013-05-24 Pritibhajan Byakti , Tirtha Sankar Ray

We study the Higgs-boson mass spectrum of a classical scale-invariant realization of the two-Higgs-doublet model (SI-2HDM). The classical scale symmetry of the theory is explicitly broken by quantum loop effects due to gauge interactions,…

高能物理 - 唯象学 · 物理学 2015-06-03 Jae Sik Lee , Apostolos Pilaftsis

We investigate the sparticle spectrum in models of gauge-mediated supersymmetry breaking. In these models, supersymmetry is spontaneously broken at an energy scale only a few orders of magnitude above the electroweak scale. The breakdown of…

高能物理 - 唯象学 · 物理学 2008-11-26 Stephen P. Martin

We present a comprehensive analysis of the Higgs boson spectra in several versions of the supersymmetric left--right model based on the gauge symmetry $SU(3)_c \times SU(2)_L \times SU(2)_R \times U(1)_{B-L}$. A variety of symmetry breaking…

高能物理 - 唯象学 · 物理学 2016-03-30 K. S. Babu , Ayon Patra

We present some phenomenology of the Higgs sector of the Minimal $B-L$ U(1) Extension of the Standard Model at the Large Hadron Collider. In this model, the existence of an extra gauge boson ($Z'$) and an extra scalar (heavy Higgs) are…

高能物理 - 唯象学 · 物理学 2011-01-03 L. Basso , A. Belyaev , S. Moretti , G. M. Pruna

The recent CDF-II measurement of the $W$-boson mass shows a strong tension with the corresponding Standard Model prediction. Once active neutrino masses are explained in the context of the Low-Scale Seesaw mechanisms, this tension can be…

高能物理 - 唯象学 · 物理学 2023-05-10 Arturo de Giorgi , Luca Merlo , Stefan Pokorski

We explore the phenomenology of the full General Gauge Mediation parameter space in the MSSM focusing on the consequences of having a fundamental Higgs around 125 GeV. Assuming GUT-complete structure of the hidden sector, we allow for…

高能物理 - 唯象学 · 物理学 2013-06-03 Phill Grajek , Alberto Mariotti , Diego Redigolo

The recent confirmation by the Fermilab-based Muon g-2 experiment of the $(g-2)_\mu$ anomaly has important implications for allowed particle spectra in softly broken supersymmetry (SUSY) models with neutralino dark matter (DM). Generally,…

高能物理 - 唯象学 · 物理学 2021-06-21 Manimala Chakraborti , Leszek Roszkowski , Sebastian Trojanowski

We consider an $U(1)_{L_\mu -L_\tau}$ extended left-right symmetric gauge theory where the neutrino masses are generated through inverse seesaw mechanism. In this model the muon $(g-2)$ anomaly is accounted for by the mediation of…

高能物理 - 唯象学 · 物理学 2022-11-04 Chayan Majumdar , Supriya Senapati , S. Uma Sankar , Urjit A. Yajnik

We point out that the anomaly of the muon $g-2$ can be easily explained in a focus point supersymmetry scenario, which realizes the semi-natural supersymmetry. Among known focus point supersymmetry scenarios, we find that a model based on…

高能物理 - 唯象学 · 物理学 2015-08-26 Keisuke Harigaya , Tsutomu T. Yanagida , Norimi Yokozaki

One of the major motivations to search for a dark gauge boson of MeV-GeV scale is the long-standing muon g-2 anomaly. Because of active searches such as fixed target experiments and rare meson decays, the muon g-2 favored parameter region…

高能物理 - 唯象学 · 物理学 2014-11-26 Hye-Sung Lee

We proposed to introduce general messenger-matter interactions in the deflected anomaly mediated SUSY breaking scenario to explain the $g_\mu-2$ anomaly. Scenarios with complete or incomplete GUT multiplet messengers are discussed,…

高能物理 - 唯象学 · 物理学 2017-10-25 Fei Wang , Wenyu Wang , Jin Min Yang

After a brief review of the muon g-2 status, we discuss hypothetical errors in the Standard Model prediction that could explain the present discrepancy with the experimental value. None of them looks likely. In particular, an hypothetical…

高能物理 - 唯象学 · 物理学 2009-04-06 M. Passera , W. J. Marciano , A. Sirlin

We show that the gauge mediation models with vector-like matters can explain the Higgs boson mass of 126 GeV without large soft scalar masses nor a large left-right mixing of the stops. The scenario has interesting features: the existence…

高能物理 - 唯象学 · 物理学 2013-05-09 Norimi Yokozaki

The Split-Family supersymmetry is a model in which the sfermion masses of the first two generations are in $\mathcal{O}(100\text{-}1000)$ GeV while that of the third one is in $\mathcal{O}(10)$TeV. With such a hierarchical spectrum, the…

高能物理 - 唯象学 · 物理学 2019-09-04 Masahiro Ibe , Motoo Suzuki , Tsutomu T. Yanagida , Norimi Yokozaki

We study the effects on a non-universal $U(1)_{X}$ extension of the Standard Model given the alternative value obtained by the Budapest-Marseille-Wuppertal (BMW) group for the anomalous magnetic moment of the muon $g-2$. The model explains…

高能物理 - 唯象学 · 物理学 2025-04-16 J. S. Alvarado , R. Martinez , Cristian Sierra

We discuss the minimal supersymmetric standard model with "split-family" spectrum where the sfermions in the first two generations are in the hundreds GeV to a TeV range while the sfermions in the third generation are in the range of tens…

高能物理 - 唯象学 · 物理学 2015-06-15 Masahiro Ibe , Tsutomu T. Yanagida , Norimi Yokozaki

We propose a U(1)^\prime mediated supersymmetry (SUSY) breaking, in which U(1)^\prime is identified with U(1)_{B_1+B_2-2L_1}. The U(1)_{B_1+B_2-2L_1} gauge symmetry, which is anomaly-free with the field contents of the minimal…

高能物理 - 唯象学 · 物理学 2013-11-12 Ji-Haeng Huh , Bumseok Kyae

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 the impact of present and future $(g-2)_\mu$ measurements on supersymmetric models. The corrections to $(g-2)_\mu$ become particularly relevant in the presence of light sleptons, charginos and neutralinos, especially in the large…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Carena , G. F. Giudice , C. E. M. Wagner