5 papers
Lepton Flavor Violation: From Muon Decays to Muon Colliders
Pouya Asadi, Hengameh Bagherian, Katherine Fraser +2
We investigate the unique potential of a high-energy muon collider to probe lepton-flavor-violating signals arising from physics beyond the Standard Model (SM). Low-energy, precisi…
The Bearable Inhomogeneity of the Baryon Asymmetry
Hengameh Bagherian, Majid Ekhterachian, Stefan Stelzl
We study the implications of precision measurements of light-element abundances, in combination with the Cosmic Microwave Background, for scenarios of physics beyond the Standard M…
Evaporating Axion Dark Matter and the Hubble Constant
Daniel Aloni, Hengameh Bagherian, Rashmish K. Mishra
Axion-like particles are a well-motivated dark matter candidate that can form a condensate with low momentum and high occupation number. In the presence of dark radiation, this con…
Stepping into the Forest: Confronting Interacting Radiation Models for the Hubble Tension with Lyman- Data
Hengameh Bagherian, Melissa Joseph, Martin Schmaltz +1
Models of interacting dark radiation have been shown to alleviate the Hubble tension. Extensions incorporating a coupling between dark matter and dark radiation (DM-DR) have been p…
Zero Modes of Massive Fermions Delocalize from Axion Strings
Hengameh Bagherian, Katherine Fraser, Samuel Homiller +1
Massless chiral excitations can arise from the interactions between a fermion and an axion string, propagating along the string and allowing it to superconduct. The properties of t…