The String Partition Function for QCD on the Torus
نویسنده
چکیده
We study the free energy of the pure glue QCD string with a torus target space and the gauge groups SU(N) and (chiral) U(N). It is highly constrained by a strong/weak gauge coupling duality which results in modular covariance. The string free energy is computed exactly in terms of modular forms for worldsheet genera 1 8. It has a surprisingly mild singularity in the weak gauge coupling/small area limit. † E-mail: [email protected]
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