News & Events
Afif Omar (TRIUMF)
McDonald Institute Seminar Series
Location: Queen's: STI 501
Date: October 30, 2025
Time: 1:30pm - 2:30pm
Probing Dark Forces with Polarized Beams at Chiral Belle
Abstract:
When equipped with a polarized electron beam, the Belle II detector—dubbed “Chiral Belle”—opens new opportunities to search for invisibly decaying (dark) bosons that weakly couple to the Standard Model. I will discuss how the dark boson’s spin and Lorentz structure of its coupling can be inferred by measuring the polarization dependence of mono-photon production due to both SM and BSM processes. This is explored in the context of three different scenarios: a dark photon, a mass-mixed “dark Z”, and a vector coupling exclusively to right-handed fermions. I will present projected sensitivities illustrating how Chiral Belle could precisely constrain the couplings of each vector type to the Standard Model in the event of a positive signal.
Afif Omar is a new Doctoral student at the University of Victoria/TRIUMF studying theoretical physics.
The McDonald Institute seminar will be held in Stirling 501. A Zoom link is also available and shared via email by the organizers. Please reach out to admin@mcdonaldinstitute.ca for access.