Help us make Indico better by taking this survey! Aidez-nous à améliorer Indico en répondant à ce sondage !

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

Precision Electroweak Tensions and a Wide Dark Photon

May 9, 2023, 5:15 PM
15m
Lawrence Hall 120

Lawrence Hall 120

BSM SM IV

Speaker

Evan Petrosky

Description

The dark photon is a well-motivated and well-studied extension to the Standard Model. The strongest bounds on a dark photon with a mass near the Z pole come from precision electroweak analysis while for higher masses, collider bounds dominate. Existing tensions involving the heavy flavor observables, the W boson mass, and the muon magnetic moment motivate a revisiting of the precision electroweak bounds, and the collider bounds can be relaxed if the dark photon has a nontrivial branching ratio to a dark sector. In this talk, I discuss the effects of different data combinations on the precision electroweak fit and the viable dark photon parameter space. I also discuss the complementarity between collider searches and precision electroweak bounds for a wide dark photon.

Primary author

Co-authors

Aaron Pierce (University of Michigan) Keisuke Harigaya (University of Chicago)

Presentation materials