385 citations · 3.7k across the 95 of their papers we have counts for
8 papers · 1 filter
Supersymmetric Proton Decay Revisited
John Ellis, Jason L. Evans, Natsumi Nagata +2
Encouraged by the advent of a new generation of underground detectors---JUNO, DUNE and Hyper-Kamiokande---that are projected to improve significantly on the present sensitivities t…
Superstring-Inspired Particle Cosmology: Inflation, Neutrino Masses, Leptogenesis, Dark Matter & the SUSY Scale
John Ellis, Marcos A. G. Garcia, Natsumi Nagata +2
We develop a string-inspired model for particle cosmology, based on a flipped SU(5)U(1) gauge group formulated in a no-scale supergravity framework. The model realizes Star…
Cornering Higgsino: Use of Soft Displaced Track
Hajime Fukuda, Natsumi Nagata, Hideyuki Oide +2
Higgsino has been intensively searched for in the LHC experiments in recent years. Currently, there is an uncharted region beyond the LEP Higgsino mass limit where the mass splitti…
Sampling the SSM for displaced decays of the tau left sneutrino LSP at the LHC
Essodjolo Kpatcha, Inaki Lara, Daniel E. Lopez-Fogliani +4
Within the framework of the SSM, a displaced dilepton signal is expected at the LHC from the decay of a tau left sneutrino as the lightest supersymmetric particle (LSP) with a…
Cosmology with a Master Coupling in Flipped SU(5) U(1): The Universe
John Ellis, Marcos A. G. Garcia, Natsumi Nagata +2
We propose a complete cosmological scenario based on a flipped SU(5) U(1) GUT model that incorporates Starobinsky-like inflation, taking the subsequent cosmological evolut…
Dark Matter Heating vs. Rotochemical Heating in Old Neutron Stars
Koichi Hamaguchi, Natsumi Nagata, Keisuke Yanagi
Dark matter (DM) particles in the Universe accumulate in neutron stars (NSs) through their interactions with ordinary matter. It has been known that their annihilation inside the N…