Speaker
Soubhik Kumar
(University of Maryland)
Description
The QCD axion provides an elegant solution to the Strong CP Problem. While the minimal realization is vulnerable to the so-called “Axion Quality Problem”, I will consider a more robust realization in the presence of a mirror sector related to the Standard Model by a (softly broken) $Z_2$ symmetry. Interestingly, the resulting “heavy” axion has a large and uncharted parameter space where it behaves as a Long-Lived Particle (LLP). By considering the defining axionic coupling to gluons, I will argue that the long-lived nature of the signal can be used to veto background, and evaluate the prospect of discovery of GeV scale axions at the HL-LHC.
Authors
Soubhik Kumar
(University of Maryland)
Prof.
Anson Hook
(University of Maryland, College Park)
Zhen Liu
(Fermilab)
Raman Sundrum
(University of Maryland)
