The Mitchell Conference on Collider, Dark Matter, and Neutrino Physics 2025

Session

Thursday Afternoon Session 2

May 15, 2025, 3:40 PM

Hawking Auditorium (Mitchell Institute, Texas A&M University)

Conveners

Thursday Afternoon Session 2: Thursday Afternoon session 2

• Zhichao Zeng

47. Probing Low-scale Baryogenesis in Neutron Stars

Rouzbeh Allahverdi (University of New Mexico)

5/15/25, 3:40 PM

I present low-scale baryogenesis scenarios that involve a singlet fermion with baryon-number-violating couplings to quarks. After briefly discussing the consequences of these models for low-energy and high-energy experiments, I show how neutron stars can be
used to tightly constrain such interactions for GeV scale fermions.

48. Novel Astrophysical Probes of Exotic Dark Matter Candidates

Andrew Zentner (University of Pittsburgh), Andrew Zentner (University of Pittsburgh)

5/15/25, 4:03 PM

13. Gamma-ray quiet millisecond pulsars and the Galactic Center Excess

Addy Evans, Addy Evans

5/15/25, 4:26 PM

50. Indirect Detection of Hot Dark Matter

Barmak Shams Es Haghi (University of Texas at Austin)

5/15/25, 4:49 PM

Cosmologically stable, light particles that came into thermal contact with the Standard Model in the early universe may persist today as a form of hot dark matter. For relics with masses in the eV range, their role in structure formation depends critically on their mass. We trace the evolution of such hot relics and derive their density profiles around cold dark matter halos, introducing a...

51. Hunting axions with the James Webb Space Telescope

Elena Pinetti

5/15/25, 5:12 PM

Axions with a mass around 1 eV can decay into near-infrared photons. Utilising blank-sky observations from the James Webb Space Telescope, I search for a narrow emission line due to decaying dark matter and derive leading constraints on the axion-photon coupling in the eV-scale mass range.