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796 papers · 1 filter
The ABC of RPV II: Classification of R-parity Violating Signatures from UDD Couplings and their Coverage at the LHC
Herbi K. Dreiner, Michael Hank, Yong Sheng Koay +5
We perform a detailed study of the current phenomenological status of baryon number violating operators within the framework of the -parity violating Minimal Supersymmetric Stan…
Gravitino Thermal Production, Dark Matter, and Reheating of the Universe
Helmut Eberl, Ioannis D. Gialamas, Vassilis C. Spanos
We present a full one-loop calculation of the gravitino thermal production rate, beyond the so-called hard thermal loop approximation, using the corresponding thermal spectral func…
Sub-MeV Dark Sink Dark Matter
Prudhvi N. Bhattiprolu, Robert McGehee, Evan Petrosky +1
A Dark Sink uses dark-sector interactions to siphon energy from dark matter to lighter dark degrees of freedom, i.e. dark radiation. Here, we extend dark matter models containing a…
Covariant formulation of spinodal decomposition in rapidly expanding quark gluon plasma
Joseph I. Kapusta, Mayank Singh, Thomas Welle
Quantum Chromodynamics (QCD) is expected to have a first order phase transition between the confined hadron gas and the deconfined quark gluon plasma at high baryon densities. This…
A Light QCD Axion with Hilltop Misalignment
Raymond T. Co, Tony Gherghetta, Zhen Liu +1
We study the cosmological evolution of a light QCD axion and identify the parameter space to obtain the correct relic dark matter abundance. The axion potential is flattened at the…
Hawking Radiation of Nonrelativistic Scalars: Applications to Pion and Axion Production
Hao-Ran Cui, Yuhsin Tsai, Tao Xu
In studying secondary gamma-ray emissions from Primordial Black Holes (PBHs), the production of scalar particles like pions and axion-like particles (ALPs) via Hawking radiation is…