Phys. Rev. A 56, R4357–R4360 (1997)Polarizabilities and parity nonconservation in the Cs atom and limits on the deviation from the standard electroweak model
A semiempirical calculation of the 6s-7s Stark amplitude α in Cs has been performed using the most accurate measurements and calculations of the electromagnetic amplitudes available. This is then used to extract the parameters of the electroweak theory from experimental data. The results are α=269.0(1.3)a03, weak charge of Cs QW=-72.41(25)expt(80)theor, deviation from the standard model S=-1.0(.3)expt(1.0)theor and the limit on the mass of the extra Z boson in the SO(10) model MZx>550 GeV. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.56.R4357
DOI:
10.1103/PhysRevA.56.R4357
PACS:
31.10.+z, 11.30.Er
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