English

Of CP and other Gauge Symmetries in String Theory

High Energy Physics - Theory 2009-10-22 v1

Abstract

We argue that \CP is a gauge symmetry in string theory. As a consequence, \CP cannot be explicitly broken either perturbatively or non-pertubatively; there can be no non-perturbative \CP-violating parameters. String theory is thus an example of a theory where all θ\theta angles arise due to spontaneous \CP violation, and are in principle calculable.

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Cite

@article{arxiv.hep-th/9205011,
  title  = {Of CP and other Gauge Symmetries in String Theory},
  author = {M. Dine and R. G. Leigh and D. A. MacIntire},
  journal= {arXiv preprint arXiv:hep-th/9205011},
  year   = {2009}
}

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8 pages