Results 81 to 90 of about 7,925 (256)
Journal of High Energy Physics, 2019 We investigate neutralino dark matter from a string/M-theory perspective. Using the Kallosh-Linde (KL) scenario to stabilize the string moduli requires supersymmetry breaking for uplifting to a de Sitter vacuum.
Thaisa C. da C. Guio, Ernany R. Schmitz
doaj +1 more source
Light neutralino dark matter in U(1)XSSM
Nuclear Physics B, 2021 The U(1)X extension of the minimal supersymmetric standard model (MSSM) is called as U(1)XSSM with the local gauge group SU(3)C×SU(2)L×U(1)Y×U(1)X. U(1)XSSM has three singlet Higgs superfields beyond MSSM.
Shu-Min Zhao +5 more
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In wino veritas? Indirect searches shed light on neutralino dark matter [PDF]
, 2013 A bstractIndirect detection constraints on gamma rays (both continuum and lines) have set strong constraints on wino dark matter. By combining results from Fermi-LAT and HESS, we show that: dark matter made entirely of light nonthermal winos is strongly ...
JiJi Fan, M. Reece
semanticscholar +1 more source
Lepton Flavor Violation beyond the MSSM
Advances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015 Most extensions of the Standard Model lepton sector predict large lepton flavor violating rates. Given the promising experimental perspectives for lepton flavor violation in the next few years, this generic expectation might offer a powerful indirect probe to look for new physics.
A. Vicente, Michal Malinský
wiley +1 more source
, 2001 Phenomenology of relic neutralinos is analyzed in an effective supersymmetric scheme at the electroweak scale. It is shown that current direct experiments for WIMPs, when interpreted in terms of relic neutralinos, are indeed probing regions of supersymmetric parameter space compatible with all present experimental bounds.
Bottino, A., Fornengo, N., Scopel, S.
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Searching for light neutralinos with a displaced vertex at the LHC
Journal of High Energy Physics, 2022 We study a bino-like light neutralino ( χ ~ 1 0 $$ {\overset{\sim }{\chi}}_1^0 $$ ) produced at the LHC from the decay of a scalar lepton ( e ~ L $$ \tilde{e}_L $$ ) through the process pp → e ~ L $$ \tilde{e}_L $$ → e χ ~ 1 0 $$ e{\overset{\sim }{\chi ...
Giovanna Cottin +4 more
doaj +1 more source
Higgs Information and NMSSM at the Large Hadron Collider
Advances in High Energy Physics, Volume 2024, Issue 1, 2024.Information theory has proven to be a worthwhile tool for investigating the implications of the Higgs sector in the Next‐to‐Minimal Supersymmetric Standard Model (NMSSM) using Higgs information at the Large Hadron Collider (LHC) assessed through the entropy constructed by means of the branching ratios of decay channels of the Higgs boson.
Surabhi Gupta +2 more
wiley +1 more source
Exploring New Models in All Detail with SARAH
Advances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015 I give an overview about the features the Mathematica package SARAH provides to study new models. In general, SARAH can handle a wide range of models beyond the MSSM coming with additional chiral superfields, extra gauge groups, or distinctive features like Dirac gaugino masses.
Florian Staub, Gordon Kane
wiley +1 more source
The Higgs Sector of the Minimal SUSY B − L Model
Advances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015 I review the Higgs sector of the U(1) B−L extension of the minimal supersymmetric standard model (MSSM). I will show that the gauge kinetic mixing plays a crucial role in the Higgs phenomenology. Two light bosons are present, a MSSM‐like one and a B − L‐like one, which mix at one loop solely due to the gauge mixing. After briefly looking at constraints
Lorenzo Basso, Kai Schmidt-Hoberg
wiley +1 more source
Gamma radiation by neutralino stars [PDF]
Physics Letters A, 1997 A new model of gamma radiation (GR) generated by neutralino annihilation in neutralino stars (NeS) is proposed. Diffuse Galactic and extragalactic GR is calculated for this model and is shown to be in a reasonable agreement with observations. The point source component (P) is picked out among nonidentified discrete gamma sources from EGRET catalog ...
Gurevich, A. V., Zybin, K. P.
openaire +2 more sources