4 papers
New physics in multi-lepton tau decays
Yohei Ema, Patrick J. Fox, Matheus Hostert +4
Dark particles with lepton-flavor-violating couplings to the tau lepton can induce rare neutrinoless decays with large final state multiplicities. We study models where transit…
Freeze-in dark matter in neutron stars
Maxim Pospelov, Samya Roychowdhury
Every neutron star is born in the process of core-collapse supernova explosion that, for a brief moment, reproduces conditions of the early Universe with temperatures $T\sim O(30\r…
Novel Constraints on Spin-Dependent Light Dark Matter Scattering
Alexander Clarke, Maxim Pospelov
We explore the sensitivity of the SNO experiment to light dark matter particles with spin-dependent interactions with nucleons. We show that the pair-production of MeV scale da…
Long-lived Axion-Like Particles from Tau Decays
Yohei Ema, Patrick J. Fox, Matheus Hostert +4
Axion-like particles (ALPs) are well-motivated examples of light, weakly coupled particles in theories beyond the Standard Model. In this work, we study long-lived ALPs coupled exc…