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arXiv · hep-th/9711030

Softly Broken MQCD and the Theta Angle

J. L. F. Barbon·A. Pasquinucci
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Abstract

We consider a family of non-supersymmetric MQCD five-brane configurations introduced by Witten, and discuss the dependence of the curves on the microscopic theta angle and its relation with CP. We find evidence for a non-trivial spectral flow of the curves (vacua) and for the level-crossing of adjacent curves at a particular value of the theta angle, with spontaneous breaking of CP symmetry, providing an MQCD analogue of the phase transitions in theta proposed by 't Hooft.

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J. L. F. Barbon, A. Pasquinucci. 1998-07-20. Softly Broken MQCD and the Theta Angle. https://doi.org/10.1016/s0370-2693(97)01587-6

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