Atomic parity violation in cesium and implications for the 3 - 3 - 1 models

  • Hoang Ngoc Long
  • Published 2000

Abstract

The parity violation in cesium atom is analysed in the framework of the models based on the SU(3)C × SU(3)L × U(1)N gauge group. It is shown that in the minimal version, the main contribution to a deviation of weak charge ∆QW due to direct Z ′ exchange is negative. New data on parity violation in the cesium atom seems not favour to minimal version, while it gets a positive value in the version with right-handed neutrinos. We obtain a lower bound on the Z ′ mass at a range from 1.4 TeV to 2.6 TeV. The allowed regions for the Z − Z ′ mixing angle are also derived. PACS number(s): 11.30.Er,12.15.Ji,12.15.Mm,12.60.Cn

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Cite this paper

@inproceedings{Long2000AtomicPV, title={Atomic parity violation in cesium and implications for the 3 - 3 - 1 models}, author={Hoang Ngoc Long}, year={2000} }