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arxiv: hep-th/9205011 · v1 · submitted 1992-05-07 · ✦ hep-th

Of CP and other Gauge Symmetries in String Theory

M. Dine , R.G. Leigh , D.A. MacIntire This is my paper
classification ✦ hep-th
keywords theorystringgaugeanglesarguearisebrokencalculable
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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 $\theta$ angles arise due to spontaneous \CP violation, and are in principle calculable.

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