6–8 May 2019
University of Pittsburgh
US/Eastern timezone

Pion capture as a probe of new physics

6 May 2019, 16:30
15m
107 (Lawrence Hall)

107

Lawrence Hall

parallel talk BSM II

Speaker

Chien-Yi Chen (Brookhaven National Laboratory)

Description

Light beyond-Standard-Model particles X in the MeV-100 MeV mass range can be produced in the nuclear and hadronic reactions, but would have to decay electromagnetically. We show that the simple and well-understood low-energy hadronic processes can be used as a tool to study X production and decay. In particular, the pion capture process can be used in a new experimental set-up to search for anomalies in the angular distribution of the lepton pair, which could signal the appearance of dark photons, axion-like particles and other exotic states. This process can be used to decisively test the hypothesis of a new particle produced in the 7Li+p reaction.

Authors

Chien-Yi Chen (Northwestern University) David McKeen (TRIUMF) Prof. Maxim Pospelov (University of Victoria and Perimeter Institute) Chien-Yi Chen (Carnegie Mellon University) Dr Chien-Yi Chen Dr Chien-Yi Chen (Department of Physics and Astronomy, University of Victoria;Perimeter Institute for Theoretical Physics)

Presentation materials