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Contributions to the 36th International Cosmic Ray Conference (ICRC 2019) of the JEM-EUSO Collaboration
G. Abdellaoui, S. Abe, J. H. Adams +309
Compilation of papers presented by the JEM-EUSO Collaboration at the 36th International Cosmic Ray Conference (ICRC), held July 24 through August 1, 2019 in Madison, Wisconsin.
Solitosynthesis and Gravitational Waves
Djuna Croon, Alexander Kusenko, Anupam Mazumdar +1
We study the gravitational wave phenomenology in models of solitosynthesis. In such models, a first order phase transition is precipitated by a period in which non-topological soli…
Fundamental Forces and Scalar Field Dynamics in the Early Universe
Alexander Kusenko, Volodymyr Takhistov, Masaki Yamada +1
Scalar weak gravity conjectures (SWGCs) attempt to pinpoint the ranges of couplings consistent with a fundamental theory of all interactions. We identify a generic dynamical conseq…
Hidden Treasures: sterile neutrinos as dark matter with miraculous abundance, structure formation for different production mechanisms, and a solution to the sigma-8 problem
Kevork N. Abazajian, Alexander Kusenko
We discuss numerous mechanisms for production of sterile neutrinos, which can account for all or a fraction of dark matter, and which can range from warm to effectively cold dark m…
Analytic Description of Primordial Black Hole Formation from Scalar Field Fragmentation
Eric Cotner, Alexander Kusenko, Misao Sasaki +1
Primordial black hole (PBH) formation is a more generic phenomenon than was once thought. The dynamics of a scalar field in inflationary universe can produce PBHs under mild assump…
Possible Hints of Sterile Neutrinos in Recent Measurements of the Hubble Parameter
Graciela B. Gelmini, Alexander Kusenko, Volodymyr Takhistov
Local Universe observations find a value of the Hubble constant that is larger than the value inferred from the Cosmic Microwave Background and other early Universe measureme…
Reflections On the Anomalous ANITA Events: The Antarctic Subsurface as a Possible Explanation
Ian M. Shoemaker, Alexander Kusenko, Peter Kuipers Munneke +3
The ANITA balloon experiment was designed to detect radio signals initiated by neutrinos and cosmic ray air showers. These signals are typically discriminated by the polarization a…
Leptogenesis from spontaneous symmetry breaking during inflation
Yi-Peng Wu, Louis Yang, Alexander Kusenko
Symmetry breaking in the Higgs field via a non-minimal coupling to gravity or higher-dimensional interactions with the inflaton can lead to condensation at a large vacuum expectati…