International Joint Workshop on the Standard Model and Beyond 2024 & 3rd Gordon Godfrey Workshop on Astroparticle Physics

Recent dark sector searches from the BABAR experiment

10 Dec 2024, 16:50

20m

102 (Ainsworth Building)

Contributed Talk Standard Model and Beyond

Speaker

Steven Robertson (IPP / University of Alberta)

Description

High statistics data sets collected in the region of the $\mathrm{{\rm Y}}(4S)$ resonance can provide extremely powerful tests of possible physics beyond the standard model. Searches with the BABAR experiment at the SLAC PEP-II $B$ factory have placed stringent constraints on possible dark-sector particles and interactions across a variety of models, for masses spanning the MeV - GeV range. Recent BABAR searches for low-mass dark sector particles will be described, and in particular, bounds are presented on $B$ baryogenesis via $B\to \mathcal{B}{\psi }_D$, where $\mathcal{B}$ is a standard model baryon and ${\psi }_D$ is a dark sector antibaryon. These searches substantially constrain the parameter space for couplings within these $B$ baryogenesis models.

Presentation materials

IJW2024_Robertson.pdf