Results 91 to 100 of about 7,925 (256)
R-parity violating decays of Bino neutralino LSPs at the LHC
Journal of High Energy Physics, 2019 The R-parity violating decays of Bino neutralino LSPs are analyzed within the context of the B − L MSSM “heterotic standard model”. These LSPs correspond to statistically determined initial soft supersymmetry breaking parameters which, when evolved using
Sebastian Dumitru +2 more
doaj +1 more source
Searches for Prompt R‐Parity‐Violating Supersymmetry at the LHC
Advances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015 Searches for supersymmetry (SUSY) at the LHC frequently assume the conservation of R‐parity in their design, optimization, and interpretation. In the case that R‐parity is not conserved, constraints on SUSY particle masses tend to be weakened with respect to R‐parity‐conserving models.
Andreas Redelbach, Mark D. Goodsell
wiley +1 more source
Explaining muon $${g}-2$$ g - 2 data in the $$\mu \nu $$ μ ν SSM
European Physical Journal C: Particles and Fields, 2021 We analyze the anomalous magnetic moment of the muon $$g-2$$ g - 2 in the $$\mu \nu $$ μ ν SSM. This R-parity violating model solves the $$\mu $$ μ problem reproducing simultaneously neutrino data, only with the addition of right-handed neutrinos. In the
Essodjolo Kpatcha +4 more
doaj +1 more source
Black Component of Dark Matter
Advances in High Energy Physics, Volume 2014, Issue 1, 2014., 2014 A mechanism of primordial black hole formation with specific mass spectrum is discussed. It is shown that these black holes could contribute to the energy density of dark matter. Our approach is elaborated in the framework of universal extra dimensions.
A. V. Grobov +3 more
wiley +1 more source
Naturalness of neutralino dark matter [PDF]
Journal of High Energy Physics, 2013 v2: 29 pages, 16 figures.
Grothaus, P., Lindner, M., Takanishi, Y.
openaire +3 more sources
b − τ Yukawa unification in SUSY SU(5) with mirage mediation: LHC and dark matter implications
Journal of High Energy Physics, 2019 We consider a class of b − τ Yukawa unified Supersymmetric (SUSY) SU(5) GUTs, in which the asymptotic gaugino M 1,2,3 masses are generated through the mirage mediated supersymmetry breaking, which is a combination of the gravity and anomaly mediation ...
Shabbar Raza +2 more
doaj +1 more source
Dark radiation constraints on mixed Axion/Neutralino dark matter [PDF]
, 2013 Recent analyses of CMB data combined with the measurement of BAO and H0 show that dark radiation — parametrized by the apparent number of additional neutrinos ΔNeff contributing to the cosmic expansion — is bounded from above by about ΔNeff1.6 at 95% CL.
K. J. Bae, H. Baer, A. Lessa
semanticscholar +1 more source
Nuclear Physics B, 1989 Abstract We compute the partial width for neutralino radiative decay χ j 0 → χ i 0 γ in the minimal supersymmetric extension of the Standard Model, for arbitrary neutralino mixing and mass parameters. We identify regions of the supersymmetric parameter space in which the branching ratio can be appreciable.
Howard E. Haber, Daniel Wyler
openaire +1 more source
Light neutralinos inBdecays [PDF]
Physical Review D, 1995 We consider the decays of a $B_s$-meson into a pair of lightest supersymmetric particles (LSP) in the minimal supersymmetric standard model. It is found that the parameter space for light LSP's in the range of 1 GeV can be appreciably constrained by looking for such decays.
ADhikari, Rathin +1 more
openaire +3 more sources
Least fine-tuned U(1) extended SSM
Nuclear Physics B, 2018 We consider the Higgs boson mass in a class of the UMSSM models in which the MSSM gauge group is extended by an additional U(1)′ group. Implementing the universal boundary condition at the GUT scale we target phenomenologically interesting regions of ...
Yaşar Hiçyılmaz +3 more
doaj +1 more source