Atomic parity violation and the HERA anomaly

Abstract

We show that the two scenarios able to explain the HERA anomaly --- a new leptoquark coupling or a new contact interaction --- predict new contributions to atomic parity violation. These corrections are sufficiently large and different that a feasible reduction in the dominant atomic theory uncertainty could give some hint in favour of one of the two scenarios.

4 pages. Reference added, PDG value of weak charge revised

Cited by in corpus (3)

• Physics of leptoquarks in precision experiments and at particle colliders
• Impact on SUSY-Breaking Models of the $R$-Parity Violating Squark Interpretation of the HERA Anomaly
• Current constraints on squark production scenarios for the excess of high $Q^2$ events at HERA