Anomalies & Tadpoles

Details Anomalies & Tadpoles Anomalies & Tadpoles

2000-02-17

arxiv.org/abs/hep-th/0002149v1

JHEP 0003 (2000) 030

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, Latex

Scientific paper

10.1088/1126-6708/2000/03/030

We show that massless RR tadpoles in vacuum configurations with open and unoriented strings are always related to anomalies. RR tadpoles arising from sectors of the internal SCFT with non-vanishing Witten index are in one-to-one correspondence with conventional irreducible anomalies. The anomalous content of the remaining RR tadpoles can be disclosed by considering anomalous amplitudes with higher numbers of external legs. We then provide an explicit parametrization of the anomaly polynomial in terms of the boundary reflection coefficients, i.e. one-point functions of massless RR fields on the disk. After factorization of the reducible anomaly, we extract the relevant WZ couplings in the effective lagrangians.

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