8–10 May 2023
University of Pittsburgh
US/Eastern timezone

Dark Photons from Charged Pion Bremsstrahlung at Proton Beam Experiments

8 May 2023, 14:30
15m
Lawrence Hall 104

Lawrence Hall 104

BSM BSM I

Speaker

Rachel Nguyen (University of Illinois at Urbana-Champaign)

Description

Secondary charged particles in proton beam dump experiments offer a new production mechanism for new particles like dark photons. Proton beam dump experiments produce a multitude of secondary charged pions. As the charged pions travel down the beam path, they scatter off of the target’s nuclei and can radiate a dark photon. We use chiral perturbation theory to calculate the production of dark photons through secondary charged pion bremsstrahlung. We find that the mass reach of SpinQuest is significantly extended compared to estimates based on dark photon production through proton bremsstrahlung or meson decay for the planned high-luminosity upgrade of the experiment.

Primary author

Rachel Nguyen (University of Illinois at Urbana-Champaign)

Co-authors

Prof. David Curtin (University of Toronto) Prof. Yonatan Kahn (University of Illinois at Urbana-Champaign)

Presentation materials