Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminars

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Events on Tuesday, October 11th, 2022

New Insights Into Lepton-Axion Interactions
Time: 2:00 pm
Place: Join Zoom Meeting Meeting ID: 912 3071 4547
Speaker: Jeff Dror , UCSC
Abstract: Axion-like particles (ALPs) below the electroweak scale are a simple, natural extension to the Standard Model and, as such, are one of the primary targets for the large-scale experimental effort to search for hidden sectors. In this talk, I revisit the theoretical framework of ALP interactions with leptons, finding some unexpected features in some amplitudes. Most importantly, I will show that there exist strong bounds on "leptophilic" ALPs from a combination of charged meson decays, W boson measurements, and proton beam dump experiments. These bounds dramatically shape allowed ALP parameter space and will be significantly improved with dedicated searches.

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Meeting ID: 912 3071 4547

Host: Baha Balantekin
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