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相关论文: Experimental constraints on nMSSM and implications…

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We discuss the lower bound to the lightest Higgs boson H_1 in the minimal supersymmetric extension of the standard model (MSSM) with explicit CP violation, and the phenomenology of the lightest relic neutralino in the same scenario. In…

高能物理 - 唯象学 · 物理学 2008-11-26 Jae Sik Lee , Stefano Scopel

We examine the parameter space of the constrained MSSM by considering various experimental constraints. For the dark matter sector, we require the neutralino dark matter to account for the relic density measured by the WMAP and satisfy the…

高能物理 - 唯象学 · 物理学 2012-04-12 Junjie Cao , Zhaoxia Heng , Dongwei Li , Jin Min Yang

We study the constraints on neutralino dark matter in minimal low energy supersymmetry models and the case of heavy lepton and quark scalar superpartners. For values of the Higgsino and gaugino mass parameters of the order of the weak…

高能物理 - 唯象学 · 物理学 2017-05-31 Peisi Huang , Roger A. Roglans , Daniel D. Spiegel , Yitian Sun , Carlos E. M. Wagner

For the experimental search of neutralino dark matter, it is important to know its allowed mass and scattering cross section with the nucleon. In order to figure out how light a neutralino dark matter can be predicted in low energy…

高能物理 - 唯象学 · 物理学 2011-09-12 Junjie Cao , Ken-ichi Hikasa , Wenyu Wang , Jin Min Yang

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 next-to-minimal supersymmetric model (NMSSM) with a large lambda (the mixing parameter between the singlet and doublet Higgs fields) is well motivated since it can significantly push up the upper bound on the SM-like Higgs boson mass to…

高能物理 - 唯象学 · 物理学 2010-04-15 Junjie Cao , Jin Min Yang

We study the parameter space of the semi-constrained NMSSM, compatible with constraints on the Standard Model like Higgs mass and signal rates, constraints from searches for squarks and gluinos, a dark matter relic density compatible with…

高能物理 - 唯象学 · 物理学 2015-06-19 Ulrich Ellwanger , Cyril Hugonie

In a minimal supersymmetric extension of the standard model (MSSM) with explicit CP violation a mass of the lightest Higgs boson H_1 in the range 7 GeV} < M_{H_1} < 10 GeV is experimentally allowed by present accelerator limits. In the same…

高能物理 - 唯象学 · 物理学 2007-10-16 Jae Sik Lee , Stefano Scopel

The constraints imposed on the Minimal Supersymmetric Standard Model (MSSM) parameter space by the Large Hadron Collider (LHC) Higgs mass limit and gluino mass lower bound are revisited. We also analyze the thermal relic abundance of…

高能物理 - 唯象学 · 物理学 2016-01-12 W. Abdallah , S. Khalil

Motivated by recent data from CoGeNT and the DAMA annual modulation signal, we discuss collider constraints on MSSM neutralino dark matter with mass in the 5-15 GeV range. Such an LSP would be a Bino with a small Higgsino admixture.…

高能物理 - 唯象学 · 物理学 2010-07-20 Eric Kuflik , Aaron Pierce , Kathryn M. Zurek

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

Neutralino dark matter is generally assumed to be relatively heavy, with a mass near the electroweak scale. This does not necessarily need to be the case, however. In the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and other…

高能物理 - 唯象学 · 物理学 2008-11-26 John F. Gunion , Dan Hooper , Bob McElrath

Unlike its minimal counterpart, the Next to Minimal supersymmetric Standard Model (NMSSM) allows the possibility that the lightest neutralino could have a mass as small as $\sim 1 {\rm GeV}$ while still providing a significant component of…

高能物理 - 唯象学 · 物理学 2021-02-03 Rahool Kumar Barman , Genevieve Bélanger , Biplob Bhattacherjee , Rohini Godbole , Dipan Sengupta , Xerxes Tata

We explore the parameter space of a Constrained Next-to-Minimal Supersymmetric Standard Model with GUT scale boundary conditions (CNMSSM) and find regions where the relic density of the lightest neutralino is compatible with the WMAP…

高能物理 - 唯象学 · 物理学 2014-11-18 C. Hugonie , G. Belanger , A. Pukhov

A theoretical analysis of solutions of renormalisation group equations in the MSSM corresponding to the quasi-fixed point conditions shows that the mass of the lightest Higgs boson in this case does not exceed $94\pm 5\text{GeV}$. It means…

高能物理 - 唯象学 · 物理学 2009-08-05 R. B. Nevzorov , M. A. Trusov

Phenomenology of neutralino dark matter in the minimal supersymmetric model is discussed for a scenario where the lightest Higgs boson mass is lighter than 114.4 GeV. We show that the scenario is consistent not only with many collider…

高能物理 - 唯象学 · 物理学 2008-11-26 Masaki Asano , Shigeki Matsumoto , Masato Senami , Hiroaki Sugiyama

We examine the parameter space of the purely phenomenological minimal super- symmetric standard model (MSSM), without assuming any supersymmetry breaking scheme. We find that a large region of the parameter space can indeed yield the…

高能物理 - 唯象学 · 物理学 2012-02-29 Nishita Desai , Biswarup Mukhopadhyaya , Saurabh Niyogi

In this talk we briefly review the current CDMS/XENON constraints on the neutralino dark matter in three popular supersymmetric models: the minimal (MSSM), the next-to-minimal (NMSSM) and the nearly minimal (nMSSM). The constraints from the…

高能物理 - 唯象学 · 物理学 2011-08-05 Jin Min Yang

Given the recent constraints from the dark matter (DM) direct detections, we examine a light GeV-scale (2-30 GeV) neutralino DM in the alignment limit of the Minimal Supersymmetric Standard Model (MSSM). In this limit without decoupling,…

高能物理 - 唯象学 · 物理学 2018-02-01 Guang Hua Duan , Wenyu Wang , Lei Wu , Jin Min Yang , Jun Zhao

Light neutralino dark matter can be achieved in the Minimal Supersymmetric Standard Model if staus are rather light, with mass around 100 GeV. We perform a detailed analysis of the relevant supersymmetric parameter space, including also the…

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