Atomic Parity Violation : Principles, Recent Results, Present Motivations
نویسندگان
چکیده
منابع مشابه
Atomic Parity Violation , Leptoquarks , and Contact Interactions
The recent measurement of atomic parity violation in cesium atoms shows a 2.3σ deviation from the standard model prediction. We show that such an effect can be explained by four-fermion contact interactions with specific chiralities or by scalar leptoquarks which couple to the left-handed quarks. For a coupling of electromagnetic strength, the leptoquark mass is inferred to be 1.1 to 1.3 TeV. W...
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Recent advances in interpreting the most accurate to-date measurement of atomic parity violation in Cs are reviewed. The inferred nuclear weak charge, QW ( Cs) = −72.65(28)expt(36)theor, agrees with the prediction of the standard model at 1σ level. Further improved interpretation is limited by an accuracy of solving basic correlation problem of atomic structure. We report on our progress in sol...
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Recent advances in interpreting the most accurate to-date measurement of atomic parity violation in Cs are reviewed. The inferred nuclear weak charge, QW ( Cs) = −72.65(28)expt(36)theor, agrees with the prediction of the standard model at 1σ level. Further improved interpretation is limited by an accuracy of solving basic correlation problem of atomic structure. We report on our progress in sol...
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