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Supersymmetric explanation of the muon g – 2 anomaly with and without stable neutralino [PDF]

open access: yesJournal of High Energy Physics, 2022
In this paper we explore the possibility of explaining the muon g − 2 anomaly in various types of supersymmetric extensions of the Standard Model.
Manimala Chakraborti   +4 more
doaj   +2 more sources

A decaying neutralino as dark matter and its gamma ray spectrum [PDF]

open access: diamondEuropean Physical Journal C: Particles and Fields, 2021
It is shown that a decaying neutralino in a supergravity unified framework is a viable candidate for dark matter. Such a situation arises in the presence of a hidden sector with ultraweak couplings to the visible sector where the neutralino can decay ...
Amin Aboubrahim   +3 more
doaj   +2 more sources

On the coverage of neutralino dark matter in coannihilations at the upgraded LHC [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In the supersymmetric models, the coannihilation of the neutralino DM with a lighter supersymmetric particle provides a feasible way to accommodate the observed cosmological DM relic density.
Murat Abdughani, Lei Wu
doaj   +2 more sources

Neutrinoless double beta decay via light neutralinos in R-parity violating supersymmetry [PDF]

open access: diamondJournal of High Energy Physics, 2022
We perform a study of neutrinoless double beta (0νββ) decay mediated by the lightest neutralino of arbitrary mass in the minimal supersymmetric Standard Model (MSSM) under the presence of R-parity violating trilinear interactions.
Patrick D. Bolton   +2 more
doaj   +2 more sources

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

open access: diamondEuropean 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   +2 more sources

Search for electroweak production of supersymmetric particles in final states with two or three leptons at $$\sqrt{s}=13\hbox {TeV}$$ s=13TeV with the ATLAS detector [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
A search for the electroweak production of charginos, neutralinos and sleptons decaying into final states involving two or three electrons or muons is presented.
M. Aaboud   +2876 more
doaj   +2 more sources

Combined searches for the production of supersymmetric top quark partners in proton–proton collisions at $$\sqrt{s} = 13\,\text {Te}\text {V} $$ s = 13 Te [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
A combination of searches for top squark pair production using proton–proton collision data at a center-of-mass energy of 13 $$\,\text {Te}\text {V}$$ Te at the CERN LHC, corresponding to an integrated luminosity of 137 $$\,\text {fb}^{-1}$$ fb - 1 ...
A. Tumasyan   +2363 more
doaj   +2 more sources

Search for top squark pair production using dilepton final states in $${\text {p}}{\text {p}}$$ pp collision data collected at $$\sqrt{s}=13\,\text {TeV} $$ s = 13 TeV [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
A search is presented for supersymmetric partners of the top quark (top squarks) in final states with two oppositely charged leptons (electrons or muons), jets identified as originating from $${\text {b}}$$ b quarks, and missing transverse momentum.
A. M. Sirunyan   +2363 more
doaj   +2 more sources

Radiation from a gluon-gluino colour-singlet dipole at N3LO

open access: yesJournal of High Energy Physics, 2023
We compute the quantum chromodynamics (QCD) corrections to the decay of a neutralino to gluinos and partons at next-to-next-to-next-to-leading order (N3LO) in the strong coupling constant α s , integrated separately over the phase-space of two, three ...
Xuan Chen   +3 more
doaj   +1 more source

Expanding the parameter space of natural supersymmetry

open access: yesJournal of High Energy Physics, 2020
SUSY/SUGRA models with naturalness defined via small μ are constrained due to experiment on the relic density and the experimental limits on the WIMP-proton cross-section and WIMP annihilation cross-section from indirect detection experiments ...
Amin Aboubrahim, Wan-Zhe Feng, Pran Nath
doaj   +1 more source

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