Results 1 to 10 of about 14,132 (207)

The waning of the WIMP? A review of models, searches, and constraints. [PDF]

open access: yesEur Phys J C Part Fields, 2018
Weakly Interacting Massive Particles (WIMPs) are among the best-motivated dark matter candidates. In light of no conclusive detection signal yet despite an extensive search program that combines, often in a complementary way, direct, indirect, and ...
Arcadi G   +7 more
europepmc   +3 more sources

Long-term LHC discovery reach for compressed Supersymmetry models using VBF processes

open access: yesJournal of High Energy Physics, 2022
The identity of Dark Matter (DM) is one of the most active topics in particle physics today. Supersymmetry (SUSY) is an extension of the standard model (SM) that could describe the particle nature of DM in the form of the lightest neutralino in R-parity ...
Nathalia Cardona   +5 more
doaj   +1 more source

Moments for positivity: using Drell-Yan data to test positivity bounds and reverse-engineer new physics

open access: yesJournal of High Energy Physics, 2022
Moments of the leptonic angular distribution in the Drell-Yan process have recently been shown to be sensitive probes of a specific class of dimension-8, four-fermion operators in the Standard Model Effective Field Theory, involving a pair of quarks and ...
Xu Li   +5 more
doaj   +1 more source

Search for electroweakinos in R-parity violating SUSY with long-lived particles at HL-LHC

open access: yesJournal of High Energy Physics, 2023
We investigate the R-parity violating (RPV) supersymmetric (SUSY) model at the High-Luminosity Large Hadron Collider (HL-LHC) in the context of compact muon solenoid (CMS) experiment assuming a total integrated luminosity of L $$ \mathcal{L} $$ = 3000 fb
Biplob Bhattacherjee, Prabhat Solanki
doaj   +1 more source

Visualization and efficient generation of constrained high-dimensional theoretical parameter spaces

open access: yesJournal of High Energy Physics, 2023
We describe a set of novel methods for efficiently sampling high-dimensional parameter spaces of physical theories defined at high energies, but constrained by experimental measurements made at lower energies.
Jason Baretz   +3 more
doaj   +1 more source

Probing compressed higgsinos with forward protons at the LHC

open access: yesJournal of High Energy Physics, 2022
Supersymmetric models with nearly-degenerate light higgsinos provide a consistent solution to the naturalness problem under rigorous constraints from current experimental searches for sparticles.
Hang Zhou, Ning Liu
doaj   +1 more source

Associated production of heavy Higgs bosons with a b b ¯ $$ \mathrm{b}\overline{\mathrm{b}} $$ pair in the nonholomorphic MSSM and LHC searches

open access: yesJournal of High Energy Physics, 2022
In the NonHolomorphic Supersymmetric Standard Model (NHSSM), the Yukawa couplings of the bottom quark (y b ) and the tau lepton (y τ ) might receive substantial supersymmetric (SUSY) radiative corrections which have prominent dependencies on the NHSSM ...
Utpal Chattopadhyay   +3 more
doaj   +1 more source

The ABC of RPV: classification of R-parity violating signatures at the LHC for small couplings

open access: yesJournal of High Energy Physics, 2023
We perform a classification of all potential supersymmetric R-parity violating signatures at the LHC to address the question: are existing bounds on supersymmetric models robust, or are there still signatures not covered by existing searches, allowing ...
Herbi K. Dreiner   +6 more
doaj   +1 more source

Mixture-of-Theories training: can we find new physics and anomalies better by mixing physical theories?

open access: yesJournal of High Energy Physics, 2023
Model-independent search strategies have been increasingly proposed in recent years because on the one hand there has been no clear signal for new physics and on the other hand there is a lack of a highly probable and parameter-free extension of the ...
Sascha Caron   +2 more
doaj   +1 more source

More on fake GUT

open access: yesJournal of High Energy Physics, 2022
It is remarkable that the matter fields in the Standard Model (SM) are apparently unified into the SU(5) representations. A straightforward explanation of this fact is to embed all the SM gauge groups into a simple group containing SU(5), i.e., the grand
Masahiro Ibe   +4 more
doaj   +1 more source

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