Confinement and Strings in MQCD
Abstract
We study aspects of confinement in the M theory fivebrane version of QCD (MQCD). We show heavy quarks are confined in hadrons (which take the form of membrane-fivebrane bound states) for N=1 and softly broken N=2 SU(Nc) MQCD. We explore and clarify the transition from the exotic physics of the latter to the standard physics of the former. In particular, the many strings and quark-antiquark mesons found in N=2 field theory by Douglas and Shenker are reproduced. It is seen that in the N=1 limit all but one such meson disappears while all of the strings survive. The strings of softly broken N=2, N=1, and even non-supersymmetric SU(Nc) MQCD have a common ratio for their tensions as a function of the amount of flux they carry. We also comment on the almost BPS properties of the Douglas-Shenker strings and discuss the brane picture for monopole confinement on N=2 QCD Higgs branches.
Keywords
Cite
@article{arxiv.hep-th/9707244,
title = {Confinement and Strings in MQCD},
author = {Amihay Hanany and Matthew J. Strassler and Alberto Zaffaroni},
journal= {arXiv preprint arXiv:hep-th/9707244},
year = {2014}
}
Comments
39 pages, 17 figures, uses harvmac