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Article overview
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Z-string global gauge anomaly and Lorentz non-invariance | F. R. Klinkhamer
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15 May 1998 | Journal: | Nucl.Phys. B535 (1998) 233-241 | Subject: | hep-th hep-ph | Abstract: | Certain (3+1)-dimensional chiral non-Abelian gauge theories have been shown to exhibit a new type of global gauge anomaly, which in the Hamiltonian formulation is due to the fermion zero-modes of a Z-string-like configuration of the gauge potential and the corresponding spectral flow. Here, we clarify the relation between this Z-string global gauge anomaly and other anomalies in both 3+1 and 2+1 dimensions. We then point out a possible trade-off between the (3+1)-dimensional Z-string global gauge anomaly and the violation of CPT and Lorentz invariance. | Source: | arXiv, hep-th/9805095 | Services: | Forum | Review | PDF | Favorites |
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