Relaxing Atomic Parity Violation Constraints on New Physics

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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Revtex, 8 pages, no figures. Additions and corrections to references

Scientific paper

10.1103/PhysRevD.57.3833

The weak charge $Q_W$ measured in atomic parity violation experiments can receive compensating contributions from more than one new physics source. We show explicitly that the $\Delta Q_W$ contribution from the exchange of an extra Z-boson can cancel that from the $s$-channel scalar top or scalar charm exchange in R-parity violating SUSY models proposed to explain the HERA high-$Q^2$ anomaly.

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