Branes and Theta Dependence

Abstract

We use the fivebrane of M theory to study the $\theta$ dependence of four dimensional $SU(N_c)$ super Yang-Mills and super QCD softly broken by a gaugino mass. We compute the energy of the vacuum in the supergravity approximation. The results obtained are in qualitative agreement with field theory. We also study the $\theta$ dependence of the QCD string tension via the fivebrane.

12 pages (harvmac)

References in corpus (8)

• Branes And The Dynamics Of QCD
• Confinement and Strings in MQCD
• Domain Walls in Supersymmetric Yang-Mills Theories
• Branes and Dynamical Supersymmetry Breaking
• Kahler Potential and Higher Derivative Terms from M Theory Fivebrane
• The Field Theory of Non-Supersymmetric Brane Configurations
• Softly Broken MQCD and the Theta Angle
• A Note on Softly Broken MQCD

Cited by in corpus (8)

• Large N Field Theories, String Theory and Gravity
• Theta dependence of SU(N) gauge theories in the presence of a topological term
• Circular Semiclassical String solutions on Confining AdS/CFT Backgrounds
• QCD at Theta ~ Pi reexamined: domain walls and spontaneous CP violation
• Multi-spin string solutions in AdS Black Hole and confining backgrounds
• Aspects of Instanton Dynamics in AdS/CFT Duality
• $\theta$ and the ${\eta }^{\prime }$ in Large $N$ Supersymmetric QCD
• A note on theta dependence