Results 61 to 70 of about 470 (175)
Type-II 2HDM under the precision measurements at the Z-pole and a Higgs factory
Journal of High Energy Physics, 2019 Future precision measurements of the Standard Model (SM) parameters at the proposed Z-factories and Higgs factories may have significant impacts on new physics beyond the Standard Model in the electroweak sector.
Ning Chen +4 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
Species Scale and Primordial Gravitational Waves
Fortschritte der Physik, Volume 72, Issue 6, June 2024.Abstract The species scale is a field‐dependent UV cut‐off for any effective field theory weakly coupled to gravity. In this letter, it is shown that in the context of inflationary cosmology, a detection of primordial gravitational waves will set an upper bound on the decay rate |Λs′/Λs|$|\Lambda ^{\prime }_s/\Lambda _s|$ of the species scale ...
Marco Scalisi
wiley +1 more source
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
Asymptotically‐Flat Black Hole Solutions in Symmergent Gravity
Fortschritte der Physik, Volume 72, Issue 4, April 2024.Abstract Symmergent gravity is an emergent gravity model with an R+R2$R+R^2$ curvature sector and an extended particle sector having new particles beyond the known ones. With constant scalar curvature, asymptotically flat black hole solutions are known to have no sensitivity to the quadratic curvature term (coefficient of R2$R^2$). With variable scalar
Beyhan Puliçe +3 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
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
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