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The lightest neutralino, assumed to be the lightest supersymmetric particle, is proposed to be a dark matter (DM) candidate for the mass $\cal{O}$(100) GeV. Constraints from various direct dark matter detection experiments and Planck…

高能物理 - 唯象学 · 物理学 2021-09-29 Monoranjan Guchait , Arnab Roy , Seema Sharma

We examine the case of neutralino dark matter in the focus point region of the MSSM, in which the scalar sparticles are too heavy to be produced at the LHC. Whilst it has been previously asserted that the LHC alone would fail to constrain…

高能物理 - 唯象学 · 物理学 2014-11-20 M. J. White , F. Feroz

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…

In view of the imminent start of the LHC experimental programme, we use the available indirect experimental and cosmological information to estimate the likely range of parameters of the constrained minimal supersymmetric extension of the…

We investigate the current status of the light neutralino dark matter scenario within the minimal supersymmetric standard model (MSSM) taking into account latest results from the LHC. A discussion of the relevant constraints, in particular…

高能物理 - 唯象学 · 物理学 2013-10-23 Lorenzo Calibbi , Jonas M. Lindert , Toshihiko Ota , Yasutaka Takanishi

We perform a comprehensive exploration of the Constrained MSSM parameters using a Markov Chain Monte Carlo technique and a Bayesian analysis. We compute superpartner masses and other collider observables as well as a cold dark matter…

高能物理 - 唯象学 · 物理学 2010-04-06 Roberto Ruiz de Austri , Roberto Trotta , Leszek Roszkowski

We investigate the constraints to the light neutralino dark matter scenario in the minimal supersymmetric standard model from available experimental observations such as decays of B and K meson, relic dark matter abundance, and the search…

高能物理 - 唯象学 · 物理学 2015-03-19 Lorenzo Calibbi , Toshihiko Ota , Yasutaka Takanishi

It was shown in a previous study that a lightest neutralino with mass below 30 GeV was severely constrained in the minimal supersymmetric standard model (MSSM), unless it annihilates via a light stau and thus yields the observed dark matter…

高能物理 - 唯象学 · 物理学 2015-06-05 Genevieve Belanger , Sanjoy Biswas , Celine Boehm , Biswarup Mukhopadhyaya

We study the complementarity between dark matter experiments (direct detection and indirect detections) and accelerator facilities (the CERN LHC and a $\sqrt{s}= 1$ TeV $e^+e^-$ Linear Collider) in the framework of the constrained Minimal…

高能物理 - 唯象学 · 物理学 2008-11-26 Y. Mambrini , E. Nezri

We explore the MSSM with 9 free parameters (p9MSSM) that have been selected as a minimum set that allows an investigation of neutralino dark matter and collider signatures while maintaining consistency with several constraints. These…

高能物理 - 唯象学 · 物理学 2013-10-04 Andrew Fowlie , Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo , Yue-Lin Sming Tsai

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

Dark matter neutralinos in the constrained minimal supersymmetric model (CMSSM) may account for the recent cosmic ray electron and positron observations reported by the PAMELA and ATIC experiments either through self annihilation or via…

高能物理 - 唯象学 · 物理学 2010-04-14 Ilia Gogoladze , Rizwan Khalid , Qaisar Shafi , Hasan Yuksel

We discuss information theory as a tool to investigate constrained minimal supersymmetric Standard Model (CMSSM) in the light of observation of Higgs boson at the Large Hadron Collider. The entropy of the Higgs boson using its various…

高能物理 - 唯象学 · 物理学 2022-08-25 Surabhi Gupta , Sudhir Kumar Gupta

We revisit MSSM scenarios with light neutralino as a dark matter candidate in view of the latest LHC and dark matter direct and indirect detection experiments. We show that scenarios with a very light neutralino (~ 10 GeV) and a scalar…

高能物理 - 唯象学 · 物理学 2013-11-08 Alexandre Arbey , Marco Battaglia , Farvah Mahmoudi

We examine the prospects of detecting the light Higgs h^0 of the Constrained MSSM at the Tevatron. To this end we explore the CMSSM parameter space with \mu>0, using a Markov Chain Monte Carlo technique, and apply all relevant collider and…

高能物理 - 唯象学 · 物理学 2010-10-27 Leszek Roszkowski , Roberto Ruiz de Austri , Roberto Trotta

The parameter space of the phenomenological MSSM (pMSSM) is explored by means of Markov Chain Monte Charlo (MCMC) methods, taking into account the latest LHC results on the Higgs signal at 125 GeV in addition to relevant low-energy…

高能物理 - 唯象学 · 物理学 2014-03-26 Beranger Dumont , John F. Gunion , Sabine Kraml

We explore the coannihilation region of the constrained minimal supersymmetric standard model (CMSSM) being consistent with current experimental/observational results. The requirements from the experimental/observational results are the…

高能物理 - 唯象学 · 物理学 2013-09-10 Yasufumi Konishi , Shingo Ohta , Joe Sato , Takashi Shimomura , Kenichi Sugai , Masato Yamanaka

We present simplified MSSM models for light neutralinos and charginos with realistic mass spectra and realistic gaugino-higgsino mixing, that can be used in experimental searches at the LHC. The formerly used naive approach of defining mass…

高能物理 - 唯象学 · 物理学 2018-03-20 Benjamin Fuks , Michael Klasen , Saskia Schmiemann , Marthijn Sunder

The 19/20-parameter p(henomenological)MSSM with either a neutralino or gravitino LSP offers a flexible framework for the study of a wide variety of R-parity conserving MSSM SUSY phenomena at the 7, 8 and 14 TeV LHC. Here we present the…

高能物理 - 唯象学 · 物理学 2013-10-01 M. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

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
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