199 citations · 4.2k across the 135 of their papers we have counts for
15 papers · 1 filter
Baryogenesis from Decaying Magnetic Helicity in Axiogenesis
Raymond T. Co, Valerie Domcke, Keisuke Harigaya
Generating axion dark matter through the kinetic misalignment mechanism implies the generation of large asymmetries for Standard Model fermions in the early universe. Even if these…
More axions from diluted domain walls
Keisuke Harigaya, Lian-Tao Wang
We consider the scenario in which the Peccei-Quinn symmetry breaking is followed by a period of inflation. A particularly interesting case is that the string-domain wall network pr…
TF08 Snowmass Report: BSM Model Building
Patrick J. Fox, Graham D. Kribs, Hitoshi Murayama +53
We summarize the state of Beyond the Standard Model (BSM) model building in particle physics for Snowmass 2021, focusing mainly on several whitepaper contributions to BSM model bui…
Baryogenesis in a Parity Solution to the Strong CP Problem
Keisuke Harigaya, Isaac R. Wang
Space-time parity can solve the strong CP problem and introduces a spontaneously broken gauge symmetry. We investigate the possibility of baryogenesis from a first-order…
Snowmass Theory Frontier: Astrophysics and Cosmology
Daniel Green, Joshua T. Ruderman, Benjamin R. Safdi +84
We summarize progress made in theoretical astrophysics and cosmology over the past decade and areas of interest for the coming decade. This Report is prepared as the TF09 "Astrophy…
Lepto-axiogenesis and the scale of supersymmetry
Patrick Barnes, Raymond T. Co, Keisuke Harigaya +1
If the Peccei-Quinn field containing the QCD axion undergoes rotations in the early universe, the dimension-five operator responsible for neutrino masses can generate a lepton asym…
First-Order Electroweak Phase Transition and Baryogenesis from a Naturally Light Singlet Scalar
Keisuke Harigaya, Isaac R. Wang
We investigate a minimal singlet-scalar extension to the Standard Model that achieves a strong first-order electroweak phase transition. The singlet can be naturally light because…
Axiogenesis with a Heavy QCD Axion
Raymond T. Co, Tony Gherghetta, Keisuke Harigaya
We demonstrate that the observed cosmological excess of matter over antimatter may originate from a heavy QCD axion that solves the strong CP problem but has a mass much larger tha…
Dark Radiation Constraints on Heavy QCD Axions
David I. Dunsky, Lawrence J. Hall, Keisuke Harigaya
The naturalness problem of PQ symmetry motivates study of the heavy QCD axion, with masses 1 MeV generated at scales above the QCD scale, and low values of the PQ symmetry…
Charge transfer between rotating complex scalar fields
Valerie Domcke, Keisuke Harigaya, Kyohei Mukaida
We consider the transfer of a U(1) charge density between Bose-Einstein condensates of complex scalar fields coupled to a thermal bath, focusing on the case of a homogeneous Afflec…
New Ideas in Baryogenesis: A Snowmass White Paper
Gilly Elor, Julia Harz, Seyda Ipek +21
The Standard Model of Particle Physics cannot explain the observed baryon asymmetry of the Universe. This observation is a clear sign of new physics beyond the Standard Model. Ther…
A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
J. Aalbers, K. Abe, V. Aerne +591
The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leadi…
Early-Universe Model Building
Pouya Asadi, Saurabh Bansal, Asher Berlin +37
Theoretical investigations into the evolution of the early universe are an essential part of particle physics that allow us to identify viable extensions to the Standard Model as w…
Cosmic Perturbations from a Rotating Field
Raymond T. Co, Keisuke Harigaya, Aaron Pierce
Complex scalar fields charged under approximate symmetries appear in well-motivated extensions of the Standard Model. One example is the field that contains the QCD axion fi…
Charged Dark Matter in Supersymmetric Twin Higgs models
Marcin Badziak, Giovanni Grilli di Cortona, Keisuke Harigaya +1
Supersymmetric Twin Higgs models ameliorate the fine-tuning of the electroweak scale originating from the heavy scalar top partners required by the non-discovery of them at the Lar…