Results 81 to 90 of about 7,890 (251)

Neutralino and gravitino dark matter with low reheating temperature [PDF]

open access: yes, 2014
A bstractWe examine a scenario in which the reheating temperature TR after inflation is so low that it is comparable to, or lower than, the freeze out temperature of ordinary WIMPs.
L. Roszkowski   +2 more
semanticscholar   +1 more source

Neutralino annihilation into two photons [PDF]

open access: yesPhysics Letters B, 1997
We compute the annihilation cross-section of two neutralinos at rest into two photons, which is of importance for the indirect detection of neutralino dark matter in the galactic halo through a quasi-monochromatic gamma-ray line. We include all diagrams to one-loop level in the minimal supersymmetric extension of the standard model. We use the helicity
Paolo Gondolo   +2 more
openaire   +3 more sources

TeV SUSY dark matter confronted with the current direct and indirect detection data

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
In the minimal supersymmetric standard model (MSSM) the lightest superparticle (LSP) can be a TeV neutralino (mainly dominated by higgsino or wino) which serves as a dark matter candidate with correct thermal relic density. In this work we confront the 1–
Murat Abdughani, Jie Ren, Jun Zhao
doaj   +1 more source

Searching for light neutralinos with a displaced vertex at the LHC

open access: yesJournal 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

Status of LHC Searches for SUSY without R‐Parity

open access: yesAdvances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015
In this contribution we briefly review the status of current searches for supersymmetry at the Large Hadron Collider, focusing especially on viable sub‐TeV colored superpartners which can appear in nonstandard scenarios. The presented material covers mostly signals that do not crucially rely on the presence of large missing transverse momentum, with ...
Roberto Franceschini, Michal Malinský
wiley   +1 more source

Light neutralino dark matter inU(1)′models [PDF]

open access: yes, 2014
We analyze the prospects for light neutralino dark matter in the minimal supersymmetric model extended by a $U(1)$ gauge group. We allow the neutralino to be an arbitrary admixture of singlet and doublet higgsinos, as well as of the three gauginos, and ...
M. Frank, S. Mondal
semanticscholar   +1 more source

Muon $$\mathbf {g-2}$$ g - 2 , neutralino dark matter and stau NLSP

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We explore the implications of resolving the muon $$g-2$$ g - 2 anomaly in a $$SU(4)_c \times SU(2)_L \times SU(2)_R$$ S U ( 4 ) c × S U ( 2 ) L × S U ( 2 ) R model, where the soft supersymmetry breaking scalar and gaugino masses break the left-right (LR)
Mario E. Gómez   +3 more
doaj   +1 more source

Lepton Flavor Violation beyond the MSSM

open access: yesAdvances 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

Search for charginos nearly mass degenerate with the lightest neutralino based on a disappearing-track signature in pp collisions at √(s) = 8 TeV with the ATLAS detector [PDF]

open access: yes, 2013
A search is presented for direct chargino production based on a disappearing-track signature using 20.3 fb(-1) of proton-proton collisions at root s = 8 TeV collected with the ATLAS experiment at t ...
Atlas Collaboration
semanticscholar   +1 more source

Neutralino dark matter in the USSM [PDF]

open access: yesJournal of High Energy Physics, 2009
This paper provides a comprehensive discussion of neutralino dark matter within classes of extended supersymmetric models referred to as the USSM containing one additional SM singlet Higgs plus an extra $Z'$, together with their superpartners the singlino and bino'.
Jan Kalinowski   +4 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy