Atomic parity violation in cesium and implications for new physics

Abstract

Recent high-precision measurements of atomic parity-nonconserving transitions between the 6S and 7S states of cesium allow for a determination of the weak nuclear charge with a precision of 1.3%, providing an improved test of the standard model at low energy. Implications for new physics are examined in terms of low energy effects on the weak charge, in particular contact interactions and scalar leptoquark limits. Prospects for further improvements are described.

12 pages, 4 figures, LaTeX (epsf, aps, revtex), 4 references added, no other changes with respect to the original version, to appear in Phys. Lett. B

References in corpus (4)

• Comparison of ZEUS Data with Standard Model Predictions for e^+ p -> e^+ X Scattering at High x and Q^2
• Observation of Events at Very High Q^2 in ep Collisions at HERA
• Leptoquark/Squark Interpretation of HERA Events: Virtual Effects in e+e- Annihilation to Hadrons
• Contact Terms, Compositeness, and Atomic Parity Violation

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• Higgs boson mass constraints from precision data and direct searches
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