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相关论文: Supersymmetric Benchmarks with Non-Universal Scala…

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We analyze scenarios in which some flavour of sneutrino is the next-to-lightest supersymmetric particle (NLSP), assuming that the gravitino is the lightest supersymmetric particle (LSP) and provides the cold dark matter. Such scenarios do…

高能物理 - 唯象学 · 物理学 2009-01-06 John Ellis , Keith A. Olive , Yudi Santoso

We consider the Minimal Supersymmetric Standard Model (MSSM) with varying amounts of non-universality in the soft supersymmetry-breaking contributions to the Higgs scalar masses. In addition to the constrained MSSM (CMSSM) in which these…

高能物理 - 唯象学 · 物理学 2014-11-20 Pearl Sandick

The new minimal supersymmetric standard model (nMSSM), a variant of the general next to minimal supersymmetric standard model (NMSSM) without $Z_3$ symmetry, features a naturally light singlino with a mass below 75 GeV. In light of the new…

高能物理 - 唯象学 · 物理学 2016-02-17 D. Barducci , G. Bélanger , C. Hugonie , A. Pukhov

We perform a comprehensive analysis of the Minimal Supersymmetric Standard Model (MSSM) in the scenario where the scalar partners of the fermions and the Higgs particles (except for the Standard-Model-like one) are assumed to be very heavy…

高能物理 - 唯象学 · 物理学 2011-12-09 Nicolas Bernal , Abdelhak Djouadi , Pietro Slavich

To address the longstanding tension between the Constrained Minimal Supersymmetric Standard Model (CMSSM) and recent experimental data, we investigate non-universal gaugino masses within an SU(5) Grand Unified Theory (GUT) framework,…

高能物理 - 唯象学 · 物理学 2025-04-01 Yabo Dong , Kun Wang , Hailong Yuan , Jingya Zhu , Pengxuan Zhu

The standard model (SM) of particle physics is for the last three decades a very successful description of the properties and interactions of all known elementary particles. Currently, it is again probed with the first collisions at the…

高能物理 - 唯象学 · 物理学 2011-04-18 Florian Staub

We investigate the measurement of supersymmetric particle masses at the LHC in gravitino dark matter (GDM) scenarios where the next-to-lightest supersymmetric partner (NLSP) is the lighter scalar tau, or stau, and is stable on the scale of…

高能物理 - 唯象学 · 物理学 2009-11-11 J. R. Ellis , A. R. Raklev , O. K. Øye

We study the phenomenology of neutralino dark matter within generic supersymmetric scenarios where the Gaugino and Higgsino masses are much lighter than the scalar soft breaking masses (Split Supersymmetry). We consider a low-energy…

高能物理 - 唯象学 · 物理学 2007-05-23 Antonio Masiero , Stefano Profumo , Piero Ullio

In the Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM) the lightest supersymmetric particle (LSP) is a candidate for the dark matter (DM) in the universe. It is a mixture from the various gauginos and Higgsinos and can be bino-,…

高能物理 - 唯象学 · 物理学 2017-09-25 C. Beskidt , W. de Boer , D. I. Kazakov , S. Wayand

In the Higgsino dark matter (DM) scenario of the Minimal Supersymmetric Model (MSSM), the mixing of Gaugino and Higgsino influences the mass splitting between neutralinos predominantly composed of Higgsino and introduces coupling between…

高能物理 - 唯象学 · 物理学 2025-11-07 Yuanfang Yue , Junjie Cao , Fei Li , Zehan Li

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) provides a natural framework to realize a low-scale supersymmetric (SUSY) model, where a singlet superfield is added to the minimal model to generate a SUSY-scale higgsino mass term…

高能物理 - 唯象学 · 物理学 2018-11-14 Junichiro Kawamura , Tatsuo Kobayashi , Natsumi Nagata

The latest experimental results from the LHC and dark matter (DM) searches suggest that the parameter space allowed in supersymmetric theories is subject to strong reductions. These bounds are especially constraining for scenarios entailing…

高能物理 - 唯象学 · 物理学 2017-05-04 M. Peiro , S. Robles

The observed excesses in the search for neutralinos and charginos by ATLAS and CMS can be fitted simultaneously in the minimal supersymmetric standard model (MSSM) assuming a light higgsino mass, of magnitude less than about 250 GeV, and a…

高能物理 - 唯象学 · 物理学 2024-05-01 Ulrich Ellwanger , Cyril Hugonie , Stephen F. King , Stefano Moretti

The identity of dark matter has not been solved up to this date, a problem that became the main topic of this conference. There are many theoretical candidates for dark matter particle, including gravitino from supergravity models. For…

高能物理 - 唯象学 · 物理学 2010-02-17 Yudi Santoso

We discuss the possibilities for the direct detection of neutralino dark matter via elastic scattering in variants of the minimal supersymmetric extension of the Standard Model (MSSM) with non-universal supersymmetry-breaking contributions…

高能物理 - 唯象学 · 物理学 2010-04-28 John Ellis , Keith A. Olive , Pearl Sandick

We study supersymmetric scenarios in which the gluino is the next-to-lightest supersymmetric particle (NLSP), with a mass sufficiently close to that of the lightest supersymmetric particle (LSP) that gluino coannihilation becomes important.…

高能物理 - 唯象学 · 物理学 2016-03-23 John Ellis , Jason L. Evans , Feng Luo , Keith A. Olive

I explore the phenomenology of Supersymmetry models in which the gauginos are much heavier then that scalar particles of the MSSM. In these models, the gauginos are inaccessible to colliders while the scalar spectrum is compressed. I give…

高能物理 - 唯象学 · 物理学 2017-12-06 Linda M. Carpenter

This study presents a comparative analysis of the Minimal Supersymmetric Standard Model (MSSM), the $Z_3$-symmetric Next-to-Minimal Supersymmetric Standard Model ($Z_3$-NMSSM), and the General Next-to-Minimal Supersymmetric Standard Model…

高能物理 - 唯象学 · 物理学 2025-11-11 Fei Li , Junjie Cao

The correlation between Higgs-like scalars and light dark matter is an interesting topic, especially now that a $125 GeV$ Higgs was discovered and dark matter (DM) searches got negative results. The $95 GeV$ excess reported by the CMS…

高能物理 - 唯象学 · 物理学 2024-01-01 Weichao Li , Haoxue Qiao , Kun Wang , Jingya Zhu

One of the challenging tasks at future experiments is the clear identification of the underlying new physics model. In this study we concentrate on the distinction between different supersymmetric models, the MSSM and the NMSSM, exploring…

高能物理 - 唯象学 · 物理学 2014-04-04 Stefano Porto , Gudrid A. Moortgat-Pick , Krzysztof Rolbiecki
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