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相关论文: Two ultimate tests of constrained supersymmetry

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We investigate the impact of the direct searches for SUSY at LHC Run I on the naturalness of the Next-to-Minimal Supersymmetric Standard Model (NMSSM). For this end, we first scan the vast parameter space of the NMSSM to get the region…

高能物理 - 唯象学 · 物理学 2016-08-24 Junjie Cao , Yangle He , Liangliang Shang , Wei Su , Yang Zhang

The prospects for detecting a candidate supersymmetric dark matter particle at the LHC are reviewed, and compared with the prospects for direct and indirect searches for astrophysical dark matter, on the basis of a frequentist analysis of…

高能物理 - 唯象学 · 物理学 2010-11-02 John Ellis

The status of the constrained minimal supersymmetric standard model (CMSSM) will be discussed in light of our current understanding of the relic density after WMAP. A global likelihood analysis of the model is performed including data from…

高能物理 - 唯象学 · 物理学 2007-05-23 Keith A. Olive

The new CDF II measurement of $W$-boson mass shows a 7$\sigma$ deviation from the Standard Model (SM) prediction, while the recent FNAL measurement of the muon $g-2$ shows a 4.2$\sigma$ deviation (combined with the BNL result) from the SM.…

高能物理 - 唯象学 · 物理学 2022-06-14 Jin Min Yang , Yang Zhang

Extending the Standard Model (SM) by a $U(1)_{L_\mu-L_\tau}$ group gives potentially significant new contributions to $g_\mu-2$, allows the construction of realistic neutrino mass matrices, incorporates lepton universality violation, and…

高能物理 - 唯象学 · 物理学 2022-02-18 Manuel Drees , Meng Shi , Zhongyi Zhang

Motivated by recent results from particle physics analyses, we investigate the Next-to-Minimal Supersymmetric Standard Model (NMSSM) as a framework capable of accommodating a range of current data anomalies across low- and high-energy…

高能物理 - 唯象学 · 物理学 2025-11-11 A. Hammad , Raymundo Ramos , Amit Chakraborty , Pyungwon Ko , Stefano Moretti

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

In this paper we explore the possibility of explaining the muon $g-2$ anomaly in various types of supersymmetric extensions of the Standard Model. In particular, we investigate and compare the phenomenological constraints in the MSSM with…

高能物理 - 唯象学 · 物理学 2022-08-23 Manimala Chakraborti , Sho Iwamoto , Jong Soo Kim , Rafał Masełek , Kazuki Sakurai

Electroweak precision measurements can provide indirect information about the possible scale of supersymmetry already at the present level of accuracy. We update the present-day sensitivities of precision data using the new experimental…

高能物理 - 唯象学 · 物理学 2009-11-11 J. Ellis , S. Heinemeyer , K. A. Olive , G. Weiglein

Where is the long--awaited one? A supersymmetric neutralino has been a favored candidate for the WIMP dark matter but, so far, it has not been found. One way to locate it is to identify where it can be hiding in the vast supersymmetric…

高能物理 - 唯象学 · 物理学 2007-05-23 Leszek Roszkowski

In an extension of MSSM with two triplets and a singlet, called the TNMSSM, there are seven neutralinos which can enrich the study of cold dark matter if one expects that the weakly interacting massive particle (WIMP) is responsible for the…

高能物理 - 唯象学 · 物理学 2024-11-28 Zhong-Jun Yang , Jin-Lei Yang , Shu-Min Zhao , Xing-Gang Wu , Tai-Fu Feng

With Bayesian statistics, we investigate the full parameter space of the constrained "next-to-minimal" supersymmetric Standard Model (CNMSSM) with naturalness priors, which were derived in a previous work. In the past, most Bayesian…

高能物理 - 唯象学 · 物理学 2016-09-19 Andrew Fowlie

We describe a likelihood analysis using MasterCode of variants of the MSSM in which the soft supersymmetry-breaking parameters are assumed to have universal values at some scale $M_{in}$ below the supersymmetric grand unification scale…

Within the Constrained Minimal Supersymmetric Standard Model (CMSSM) it is possible to predict the low energy gauge couplings and masses of the 3.generation particles from a few parameters at the GUT scale, and electroweak symmetry…

高能物理 - 唯象学 · 物理学 2008-02-03 W. de Boer , G. Burkart , R. Ehret , W. Oberschulte-Beckmann , V. Bednyakov , S. G. Kovalenko

We review different constrained versions of the NMSSM: the fully constrained cNMSSM with universal boundary conditions for gauginos and all soft scalar masses and trilinear couplings, and the NMSSM with soft terms from Gauge Mediated…

高能物理 - 唯象学 · 物理学 2009-02-02 Ulrich Ellwanger

The $b\tau j \etslash$ signal at the ongoing LHC experiments is simulated with Pythia in the mSUGRA and other models of SUSY breaking. Special attention is given on the compatibility of this signature with the low mass neutralino dark…

高能物理 - 唯象学 · 物理学 2011-11-10 Nabanita Bhattacharyya , Arghya Choudhury , Amitava Datta

We identify a benchmark point in the CMSSM's heavy stau-coannihilation region, which is favored by experiments, and demonstrate that it could be accessible to the LHC at $\sqrt{s}=14$ TeV with 300/fb of integrated luminosity via a golden…

高能物理 - 唯象学 · 物理学 2014-12-19 Andrew Fowlie , Malgorzata Kazana , Leszek Roszkowski

We compare the first results on searches for supersymmetry with the Large Hadron Collider (LHC) to the current and near-term performance of experiments sensitive to neutralino dark matter. We limit our study to the particular slices of…

高能物理 - 唯象学 · 物理学 2011-08-08 Stefano Profumo

The most recent CMS results from a search for supersymmetry (SUSY) with a compressed mass spectrum in leptonic final states will be presented. The search is targeting signatures with missing transverse momentum and two or three low-momentum…

高能物理 - 实验 · 物理学 2021-11-30 Ioanna Papavergou , Emmanouil Vourliotis

We examine updated prospects for detecting WIMPs in supersymmetric models via direct and indirect dark matter search experiments. We examine several historical and also still viable scenarios: projections for well-tempered neutralinos…

高能物理 - 唯象学 · 物理学 2016-12-28 Howard Baer , Vernon Barger , Hasan Serce
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