Results 131 to 140 of about 7,890 (251)

Clumpy neutralino dark matter

open access: yesPhysical Review D, 1999
We investigate the possibility to detect neutralino dark matter in a scenario in which the galactic dark halo is clumpy. We find that under customary assumptions on various astrophysical parameters, the antiproton and continuum gamma-ray signals from neutralino annihilation in the halo put the strongest limits on the clumpiness of a neutralino halo. We
L. BERGSTROM   +3 more
openaire   +3 more sources

Search for direct top squark pair production in events with one lepton, jets, and missing transverse momentum at 13 TeV with the CMS experiment

open access: yesJournal of High Energy Physics, 2020
A search for direct top squark pair production is presented. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV recorded by the CMS experiment at the LHC during 2016, 2017, and 2018, corresponding to an integrated ...
The CMS collaboration   +2318 more
doaj   +1 more source

The status of neutralino dark matter [PDF]

open access: yesAIP Conference Proceedings, 2014
Contribution to the proceedings of the CETUP* 2013 Dark Matter Program, Lead/Deadwood, South ...
openaire   +4 more sources

Combination and reinterpretation of LHC SUSY searches

open access: yesJournal of High Energy Physics
To maximise the information obtained from various independent new physics searches conducted at the LHC, it is imperative to consider the combination of multiple analyses.
Alexander Feike   +4 more
doaj   +1 more source

Gravitino vs. neutralino LSP at the LHC

open access: yesJournal of High Energy Physics, 2019
Using the latest LHC data, we analyse and compare the lower limits on the masses of gluinos and the lightest stop in two natural supersymmetric motivated scenarios: one with a neutralino being the lightest supersymmetric particle (LSP) and the other one ...
Jong Soo Kim   +3 more
doaj   +1 more source

Search for top squark pair production in a final state with two tau leptons in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2020
A search for pair production of the supersymmetric partner of the top quark, the top squark, in proton-proton collision events at s $$ \sqrt{s} $$ = 13 TeV is presented in a final state containing hadronically decaying tau leptons and large missing ...
The CMS collaboration   +2326 more
doaj   +1 more source

Light neutralino dark matter in U(1)XSSM

open access: yesNuclear 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
doaj  

Quintessence and the relic density of neutralinos

open access: yesPhysics Letters B, 2003
The archetypal model for the recently discovered dark energy component of the universe is based on the existence of a scalar field whose dynamical evolution comes down today to a non-vanishing cosmological constant. In the past - before big-bang nucleosynthesis for that matter - that scalar field could have gone through a period of kination during ...
openaire   +3 more sources

Neutralino dark matter in the NMSSM [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2007
6 pages, 6 figures, talk given at IRGAC2006, Barcelona, July 11-15, 2006, to appear in J.
openaire   +3 more sources

Heavy Z ' bosons in the secluded U ( 1 ) ' model at hadron colliders. [PDF]

open access: yesEur Phys J C Part Fields, 2021
Frank M, Selbuz L, Turan I.
europepmc   +1 more source

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