Results 21 to 30 of about 85,457 (218)

Employing nucleon decay as a fingerprint of SUSY GUT models using SusyTCProton

open access: yesJournal of High Energy Physics, 2021
While the observation of nucleon decay would be a smoking gun of Grand Unified Theories (GUTs) in general, the ratios between the decay rates of the various channels carry rich information about the specific GUT model realization.
Stefan Antusch   +2 more
doaj   +1 more source

The Next-to-Minimal Supersymmetric Standard Model [PDF]

open access: yes, 2009
We review the theoretical and phenomenological aspects of the Next-to-Minimal Supersymmetric Standard Model: the Higgs sector including radiative corrections and the 2-loop beta-functions for all parameters of the general NMSSM; the tadpole and domain ...
Abada   +531 more
core   +3 more sources

A Minimally Fine-Tuned Supersymmetric Standard Model [PDF]

open access: yes, 2005
We construct supersymmetric theories in which the correct scale for electroweak symmetry breaking is obtained without significant fine-tuning. We calculate the fine-tuning parameter for these theories to be at the 20% level, which is significantly better
't Hooft   +93 more
core   +3 more sources

Moderately suppressed dimension-five proton decay in a flipped SU(5) model

open access: yesJournal of High Energy Physics, 2022
We study colored Higgsino-mediated proton decay (dimension-five proton decay) in a model based on the flipped SU(5) GUT. In the model, the GUT-breaking 10, 10 ¯ $$ \overline{\mathbf{10}} $$ fields have a GUT-scale mass term and gain VEVs through higher ...
Naoyuki Haba, Toshifumi Yamada
doaj   +1 more source

Higgs Sector in Extensions of the MSSM [PDF]

open access: yes, 2006
Extensions of the Minimal Supersymmetric Standard Model (MSSM) with additional singlet scalar fields solve the important mu-parameter fine tuning problem of the MSSM.
A. Birkedal   +9 more
core   +4 more sources

R-invariant New Inflation Model vs Supersymmetric Standard Model [PDF]

open access: yes, 2007
We revisit the implications of the R-invariant New Inflation model to the supersymmetric standard model in light of recent discussion of gravitino production processes by the decay of the inflaton or the supersymmetry breaking field.
M. Gell-Mann   +3 more
core   +3 more sources

Closing the window for compressed dark sectors with disappearing charged tracks

open access: yesJournal of High Energy Physics, 2017
We investigate the sensitivity at current and future hadron colliders to a heavy electrically-charged particle with a proper decay length below a centimetre, whose decay products are invisible due to below-threshold energies and/or small couplings to the
Rakhi Mahbubani   +2 more
doaj   +1 more source

Comparatively light extra Higgs states as signature of SUSY SO(10) GUTs with 3rd family Yukawa unification

open access: yesJournal of High Energy Physics, 2020
We study 3rd family Yukawa unification in the context of supersymmetric (SUSY) SO (10) GUTs and SO(10)-motivated boundary conditions for the SUSY-breaking soft terms.
Stefan Antusch   +2 more
doaj   +1 more source

Interpreting the electron EDM constraint

open access: yesJournal of High Energy Physics, 2019
The ACME collaboration has recently announced a new constraint on the electron EDM, |d e | < 1.1 × 10−29 e cm, from measurements of the ThO molecule. This is a powerful constraint on CP-violating new physics: even new physics generating the EDM at two ...
Cari Cesarotti   +4 more
doaj   +1 more source

Charged fermions below 100 GeV

open access: yesJournal of High Energy Physics, 2018
How light can a fermion be if it has unit electric charge? We revisit the lore that LEP robustly excludes charged fermions lighter than about 100 GeV.
Daniel Egana-Ugrinovic   +2 more
doaj   +1 more source

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