DOI

The complete gauge-invariant set of the one-loop QED corrections to the parity-nonconserving 6s-7s amplitude in Cs133 is evaluated to all orders in αZ using a local version of the Dirac-Hartree-Fock potential. The calculations are performed in both length and velocity gauges for the absorbed photon. The total binding QED correction is found to be -0.27(3)%. The weak charge of Cs133, derived using two most accurate values of the vector transition polarizability β, is QW=-72.57(46) for β=26.957(51)aB3 and QW=-73.09(54) for β=27.15(11)aB3. The first value deviates by 1.1σ from the prediction of the standard model, while the second one is in perfect agreement with it.

Язык оригиналаанглийский
Номер статьи213002
ЖурналPhysical Review Letters
Том94
Номер выпуска21
DOI
СостояниеОпубликовано - 3 июн 2005

    Предметные области Scopus

  • Физика и астрономия (все)

ID: 35329347