Speaker
Satoshi Shirai
(Kavli IPMU)
Description
Axions present a promising solution to the strong CP problem in the Standard Model. However, this solution relies on the existence of an almost exact global symmetry, known as Peccei-Quinn (PQ) symmetry, which is problematic because quantum gravity is believed to forbid global symmetries. High-quality axion models resolve this tension by realizing PQ symmetry as an accidental symmetry, thus bypassing the need for explicit global symmetries. These models introduce additional gauge interactions beyond the Standard Model, which may significantly influence key properties, such as the axion's mass. In this talk, I will examine whether and how these new gauge interactions affect the axion mass.
Primary author
Satoshi Shirai
(Kavli IPMU)
