TY - JOUR
T1 - CP and other gauge symmetries in string theory
AU - Dine, Michael
AU - Leigh, Robert G.
AU - MacIntire, Douglas A.
PY - 1992
Y1 - 1992
N2 - We argue that CP is a gauge symmetry in string theory. As a consequence, CP cannot be explicitly broken either perturbatively or nonperturbatively; there can be no nonperturbative CP-violating parameters. String theory is thus an example of a theory where all θ angles arise due to spontaneous CP violation, and are in principle calculable.
AB - We argue that CP is a gauge symmetry in string theory. As a consequence, CP cannot be explicitly broken either perturbatively or nonperturbatively; there can be no nonperturbative CP-violating parameters. String theory is thus an example of a theory where all θ angles arise due to spontaneous CP violation, and are in principle calculable.
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U2 - 10.1103/PhysRevLett.69.2030
DO - 10.1103/PhysRevLett.69.2030
M3 - Article
AN - SCOPUS:0000087491
VL - 69
SP - 2030
EP - 2032
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 14
ER -