Results 101 to 110 of about 52,823 (259)
Flavor in SU(5)$SU(5)$ Finite Grand Unified Models
Fortschritte der Physik, Volume 72, Issue 12, December 2024.Abstract Four SU(5)N=1$SU(5) \nobreakspace N=1$ supersymmetric models which exhibit S3$S_3$ and/or ZN$Z_N$ symmetries are studied, that are finite to two or all loops, and their corresponding mass matrices. The first is an all‐loop finite model based on an S3×Z3×Z2$S_3\times Z_3\times Z_2$ flavor symmetry, which leads to phenomenologically nonviable ...
Luis Odín Estrada Ramos +3 more
wiley +1 more source
Light and compressed gluinos at the LHC via string theory
European Physical Journal C: Particles and Fields, 2017 In this article, we show that making global fits of string theory model parameters to data is an interesting mechanism for probing, mapping and forecasting connections of the theory to real world physics.
S. S. AbdusSalam
doaj +1 more source
de Sitter State in Heterotic String Theory
Fortschritte der Physik, Volume 72, Issue 11, November 2024.Abstract Recent no‐go theorems have ruled out four‐dimensional classical de Sitter vacua in heterotic string theory. On the other hand, the absence of a well‐defined Wilsonian effective action and other related phenomena also appear to rule out such time‐dependent vacua with de Sitter isometries, even in the presence of quantum corrections.
Stephon Alexander +4 more
wiley +1 more source
Constraining compressed versions of MUED and MSSM using soft tracks at the LHC
Journal of High Energy Physics, 2017 A compressed spectrum is an anticipated hideout for many beyond standard model scenarios. Such a spectrum naturally arises in the minimal universal extra dimension framework and also in supersymmetric scenarios.
Sabyasachi Chakraborty +2 more
doaj +1 more source
Constraining sleptons at the LHC in a supersymmetric low-scale seesaw scenario
European Physical Journal C: Particles and Fields, 2017 We consider a scenario inspired by natural supersymmetry, where neutrino data is explained within a low-scale seesaw scenario. We extend the Minimal Supersymmetric Standard Model by adding light right-handed neutrinos and their superpartners, the R ...
Nhell Cerna-Velazco +3 more
doaj +1 more source
Constrained Minimal Supersymmetric Standard Model with Generalized Yukawa Quasi-Unification
, 2013 We analyze the constrained minimal supersymmetric standard model with mu>0 supplemented by a generalized `asymptotic' Yukawa coupling quasi-unification condition, which allows an acceptable b-quark mass.
Karagiannakis, N. +2 more
core +1 more source
Triviality bounds in the next to minimal supersymmetric standard model [PDF]
Physical Review D, 1995 We study the implications of the triviality problem for the Higgs masses and other relevant parameters in the Next to Minimal Supersymmetric Standard Model (NMSSM). By means of triviality, a new way to constrain parameters is proposed, and therefore we are able to derive triviality bounds on the heaviest-Higgs mass, the lightest-Higgs mass, the soft ...
openaire +3 more sources
Naturalness and Dark Matter Properties of the BLSSM
, 2017 In this report, we compare the naturalness and Dark Matter (DM) properties of the Minimal Supersymmetric Standard Model (MSSM) and the $B-L$ Supersymmetric Standard Model (BLSSM), with universality in both cases.
Khalil, Shaaban +5 more
core +1 more source
Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity
European Physical Journal C: Particles and FieldsA particular extension of Einstein’s General Relativity up to and including quartic terms in the curvature tensor is minimal in the sense that it has a unique maximally symmetric vacuum and only a massless spin-2 excitation in its spectrum around the ...
Kerim Demirel, Bayram Tekin
doaj +1 more source
Supersymmetric naturalness beyond MSSM
Journal of High Energy Physics, 2019 The experiments at the Large Hadron Collider (LHC) have pushed the limits on masses of supersymmetric particles beyond the ∼TeV scale. This compromises naturalness of the simplest supersymmetric extension of the Standard Model, the minimal supersymmetric
Archil Kobakhidze, Matthew Talia
doaj +1 more source