Current bounds and future prospects of light neutralino dark matter in the NMSSM
Physical Review D, 2021 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 relic dark ...
R. Barman +5 more
semanticscholar +1 more source
Discovery and Exclusion Prospects for Staus Produced by Heavy Higgs Boson Decays at the LHC
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 In a previous work, we developed a search strategy for staus produced by the decay of the heavy CP‐even Higgs boson H within the context of the large tanβ regime of the minimal supersymmetric standard model (MSSM) in a scenario of large stau mixing. Here, we study the performance of such search strategy by confronting it with the complementary mixing ...
Ernesto Arganda +4 more
wiley +1 more source
Gaugino and higgsino coannihilations I: neutralino-neutralino interactions [PDF]
Journal of High Energy Physics, 2003 50 pages; table of contents deleted and references added; typographical errors corrected, now agrees completely with hep-ph/0202009 in the limit of identical ...
Birkedal-Hansen, A., Jeong, E.
openaire +2 more sources
Detecting underabundant neutralinos [PDF]
Journal of High Energy Physics, 2015 36 pages, 15 ...
M. Badziak +4 more
openalex +3 more sources
Neutralino annihilation into gluons [PDF]
Physical Review D, 1994 We present a complete calculation of the cross section for neutralino annihilation into the two-gluon final state. This channel can be quite important for the phenomenology of neutralino annihilation due to the well-known helicity suppression of neutralino annihilation into light quarks and leptons.
Drees, M. +3 more
openaire +3 more sources
Neutralino-chargino pair production at NLO+NLL with resummation-improved parton density functions for LHC Run II [PDF]
Physical Review D, 2018 We make use of recently released parton density functions (PDFs) with threshold-resummation improvement to consistently calculate theoretical predictions for neutralino and chargino pair production at next-to-leading order and next-to-leading logarithmic
J. Fiaschi, M. Klasen
semanticscholar +1 more source
Search for chargino and neutralino production in final states with a Higgs boson and missing transverse momentum at √s=13 TeV with the ATLAS detector [PDF]
, 2018 A search is conducted for the electroweak pair production of a chargino and a neutralino pp -> (chi) over tilde (+/-)(1)(chi) over tilde (0)(2), where the chargino decays into the lightest neutr ...
Atlas Collaboration
semanticscholar +1 more source
Diagonalization of the neutralino mass matrix and boson–neutralino interaction [PDF]
The European Physical Journal C, 2008 21 pages ...
Beylin, V. A. +3 more
openaire +2 more sources
UV Shadows in EFTs: Accidental Symmetries, Robustness and No‐Scale Supergravity
Fortschritte der Physik, Volume 68, Issue 10, October 2020., 2020 Abstract We argue that accidental approximate scaling symmetries are robust predictions of weakly coupled string vacua, and show that their interplay with supersymmetry and other (generalised) internal symmetries underlies the ubiquitous appearance of no‐scale supergravities in low‐energy 4D EFTs.
C. P. Burgess +4 more
wiley +1 more source
Supergravity Model of Inflation and Explaining IceCube HESE Data via PeV Dark Matter Decay
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 We construct a unified model of inflation and PeV dark matter with an appropriate choice of no‐scale Kähler potential, superpotential, and gauge kinetic function in terms of MSSM fields and hidden sector Polonyi field. The model is consistent with the CMB observations and can explain the PeV neutrino flux observed at IceCube HESE.
Girish Kumar Chakravarty +3 more
wiley +1 more source