Polarizabilities and parity non-conservation in the Cs atom and limits on the deviation from the standard electroweak model

Details Polarizabilities and parity non-conservation in the Cs atom and limits on the deviation from the standard electroweak model Polarizabilities and parity non-conservation in the Cs atom and limits on the deviation from the standard electroweak model

1997-09-05

arxiv.org/abs/hep-ph/9709251v3

Phys.Rev.A56:4357-4360,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages; submitted to Phys. Rev. A

Scientific paper

10.1103/PhysRevA.56.R4357

A semi-empirical calculation of the 6s - 7s Stark amplitude $\alpha$ 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: $\alpha = 269.0 (1.3) a_0^3$, weak charge of Cs $Q_W = -72.41(25)_{exp} (80)_{theor}$, deviation from the Standard model $S = -1.0(.3)_{exp} (1.0)_{theor}$ and limit on the mass of the extra Z-boson in SO(10) model $M_{Z_x} > 550 GeV$.

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