Results 1 to 10 of about 1,959 (99)

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

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   +1 more source

A decaying neutralino as dark matter and its gamma ray spectrum

open access: yesEuropean 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   +1 more source

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

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   +1 more source

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

open access: yesJournal 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   +1 more source

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

Combined search for electroweak production of charginos and neutralinos in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV

open access: yesJournal of High Energy Physics, 2018
A statistical combination of several searches for the electroweak production of charginos and neutralinos is presented. All searches use proton-proton collision data at s = 13 $$ \sqrt{s}=13 $$ TeV, recorded with the CMS detector at the LHC in 2016 and ...
The CMS collaboration   +2253 more
doaj   +1 more source

Testing Yukawa unification at LHC Run-3 and HL-LHC

open access: yesJournal of High Energy Physics, 2020
We explore t-b-τ Yukawa unification (YU) in a supersymmetric SU(4) c × SU(2) L × SU(2) R model without imposing a discrete left-right (L-R) symmetry.
Mario E. Gómez   +2 more
doaj   +1 more source

Searches for pair production of charginos and top squarks in final states with two oppositely charged leptons in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV

open access: yesJournal of High Energy Physics, 2018
A search for pair production of supersymmetric particles in events with two oppositely charged leptons (electrons or muons) and missing transverse momentum is reported. The data sample corresponds to an integrated luminosity of 35.9 fb−1 of proton-proton
The CMS collaboration   +2304 more
doaj   +1 more source

How heavy can neutralino dark matter be?

open access: yesJournal of High Energy Physics, 2019
What is the upper limit of the mass of the neutralino dark matter whose thermal relic is consistent with the observation? If the neutralino dark matter and colored sparticles are extremely degenerated in mass, with a mass difference less than the QCD ...
Hajime Fukuda, Feng Luo, Satoshi Shirai
doaj   +1 more source

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