Measurement of parity non-conservation in cesium using two-pathway coherent control
POSTER
Abstract
Atomic parity violation measurements provide a way to probe physics beyond the Standard Model. They can provide constraints on conjectures of a massive \(Z'\) boson or a light boson, or searches of dark energy. Using the two-pathway coherent control techniques developed by our group, we plan a new measurement of \(E_{PNC}\) on the cesium 6S \(\rightarrow\) 7S transition. We coherently interfere a 2-photon transition with the Stark and PNC transition to amplify and extract the PNC amplitude. This should result in much smaller systematic effects as compared to those of previous measurements of \(E_{PNC}\). Previously, we have measured the magnetic dipole transition moment on the same 6S \(\rightarrow\) 7S transition to about 0.4\% uncertainty. We discuss improvements made to the system to date and our plans for further upgrades towards an \(E_{PNC}\) measurement. Key systematics and how we plan to overcome them will also be detailed.
Authors
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Yao De George Toh
Purdue Univ
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Jungu Choi
Purdue Univ
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Daniel Elliott
Purdue University, Purdue Univ