385 citations · 3.7k across the 95 of their papers we have counts for
9 papers · 1 filter
Symmetry Breaking and Reheating after Inflation in No-Scale Flipped SU(5)
John Ellis, Marcos A. G. Garcia, Natsumi Nagata +2
No-scale supergravity and the flipped SU(5)U(1) gauge group provide an ambitious prototype string-inspired scenario for physics below the string scale, which can accommodat…
Minimal Gauged U(1) Models Driven into a Corner
Kento Asai, Koichi Hamaguchi, Natsumi Nagata +2
It is well known that the differences between the lepton numbers can be gauged with the Standard Model matter content. Such extended gauge theories, dubbed as the gauged U(1)$_{L_α…
Non-Universal Gaugino Masses in the NMSSM
Junichiro Kawamura, Tatsuo Kobayashi, Natsumi Nagata
The Next-to-Minimal Supersymmetric Standard Model (NMSSM) provides a natural framework to realize a low-scale supersymmetric (SUSY) model, where a singlet superfield is added to th…
Singlet Dirac Fermion Dark Matter with Mediators at Loop
Junji Hisano, Ryo Nagai, Natsumi Nagata
We study the phenomenology of singlet Dirac fermion dark matter in the simplified models where the dark matter interacts with the Standard Model particles at loop-level with the he…
Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
David Curtin, Marco Drewes, Matthew McCullough +85
We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of…
Limit on the Axion Decay Constant from the Cooling Neutron Star in Cassiopeia A
Koichi Hamaguchi, Natsumi Nagata, Keisuke Yanagi +1
The observed rapid cooling of the neutron star (NS) located at the center of the supernova remnant Cassiopeia A (Cas A) can be explained in the minimal NS cooling scenario. This co…