HET seminar

"On the Dynamical Origin of the η′ Potential and the Axion Mass"

Presented by Csaba Csaki

Thursday, November 2, 2023, 11:00 am — Small Seminar Room, Bldg. 510

Abstract: We investigate the dynamics responsible for generating the potential of the η′, the (would-be) Goldstone boson associated with the anomalous axial U (1) symmetry of QCD. The standard lore posits that pure QCD dynamics generates a confining potential with a branched structure as a function of the θ angle, and that this same potential largely determines the properties of the η′ once fermions are included. Here we test this picture by examining a supersymmetric extension of QCD with a small amount of supersymmetry breaking generated via anomaly mediation.

Hosted by: Matthew Sullivan

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