RIKEN Lunch Seminar

"Exact results on massless 3-flavor QCD through new anomaly matching"

Presented by Yuya Tanizaki, RBRC

Thursday, January 25, 2018, 12:30 pm — Building 510, Room 2-160

Recently, we find a new 't Hooft anomaly of massless 3-flavor QCD, and it turns out to be useful for constraining the possible chiral symmetry breaking at finite density and zero temperature. We briefly review the anomaly matching by a toy example, and show that massless 3-flavor QCD has an 't Hooft anomaly related to ''center'' and discrete axial symmetries. We also discuss its consequences on the expectation value of the special symmetry-twisting operator, which gives the phase diagram of so-called Z(3)-QCD.

Hosted by: Enrico Rinaldi

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