Results 71 to 80 of about 460 (175)
Heavy Higgs as a portal to the supersymmetric electroweak sector
Journal of High Energy Physics, 2019 The electroweak sector of the Minimal Supersymmetric Standard Model (MSSM) — neutralinos, charginos and sleptons — remains relatively weakly constrained at the LHC due in part to the small production cross sections of these particles.
Stefania Gori +2 more
doaj +1 more source
Phenomenological consequences of supersymmetry with anomaly induced masses [PDF]
Nuclear Physics B, 1999 In the supersymmetric standard model there exist pure gravity contributions to the soft mass parameters which arise via the superconformal anomaly. We consider the low-energy phenomenology with a mass spectrum dominated by the anomaly-induced contributions.
Gherghetta, Tony +2 more
openaire +2 more sources
Fortschritte der Physik, Volume 72, Issue 2, February 2024.Abstract The string theory landscape may include a multitude of ultraviolet embeddings of the Standard Model, but identifying these has proven difficult due to the enormous number of available string compactifications. Genetic Algorithms (GAs) represent a powerful class of discrete optimisation techniques that can efficiently deal with the immensity of
Steve A. Abel +4 more
wiley +1 more source
Does SUSY have friends? A new approach for LHC event analysis
Journal of High Energy Physics, 2021 We present a novel technique for the analysis of proton-proton collision events from the ATLAS and CMS experiments at the Large Hadron Collider. For a given final state and choice of kinematic variables, we build a graph network in which the individual ...
Anna Mullin +5 more
doaj +1 more source
Neutrino Phenomenology of a High Scale Supersymmetry Model* [PDF]
Communications in Theoretical Physics, 2019 Abstract CP violation in the lepton sector, and other aspects of neutrino physics, are studied within a high scale supersymmetry model. In addition to the sneutrino vacuum expectation values (VEVs), the heavy vector-like triplet also contributes to neutrino masses.
Lei, Ying-Ke, Liu, Chun
openaire +2 more sources
Journal of High Energy Physics, 2019 We study baryogenesis via a gaugino portal, the supersymmetric counterpart to the widely studied kinetic mixing portal, to a hidden sector. CP and baryon number violating decays of a hidden sector gaugino into the visible sector can produce the observed ...
Aaron Pierce, Bibhushan Shakya
doaj +1 more source
Enhancing the discovery prospects for SUSY-like decays with a forgotten kinematic variable
Journal of High Energy Physics, 2019 The lack of a new physics signal thus far at the Large Hadron Collider motivates us to consider how to look for challenging final states, with large Standard Model backgrounds and subtle kinematic features, such as cascade decays with compressed spectra.
Dipsikha Debnath +5 more
doaj +1 more source
Comparative studies of 2HDMs under the Higgs boson precision measurements
Journal of High Energy Physics, 2021 We perform comparative studies for four types of the two Higgs Doublet Models (2HDMs) under the precision measurements of the Standard Model (SM) Higgs observables at the proposed Higgs factories.
Tao Han +4 more
doaj +1 more source
Evidence for a Phenomenological Supersymmetry in Atomic Physics [PDF]
Physical Review Letters, 1984 We show that supersymmetric quantum mechanics may be used to interrelate the spectra of different atoms and ions. This supersymmetry is broken by electron-electron interactions.
V. Alan Kostelecky, Michael Martin Nieto
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Interference effects in t t ¯ $$ t\overline{t} $$ production at the LHC as a window on new physics
Journal of High Energy Physics, 2019 Many extensions of the Standard Model (SM) contain (pseudo)scalar bosons with masses in the TeV range. At hadron colliders, such particles would predominantly be produced in gluon fusion and would decay into top quark pair final sates, a signal that ...
Abdelhak Djouadi +3 more
doaj +1 more source