Anomaly matching for the QCD string.

  • Balakrishna
  • Published 1993 in Physical review. D, Particles and fields


A criterion to be satisfied by a string theory of QCD is formulated in the ultraviolet regime. It arises from the trace anomaly of the QCD stress tensor computed using instantons. It is sensitive to asymptotic freedom. It appears to be related to the trace anomaly of the QCD string. Our current understanding of noncritical strings in physical dimensions is… (More)