Research output: Contribution to journal › Article › peer-review
QED corrections to the parity-nonconserving 6s-7s amplitude in Cs133. / Shabaev, V. M.; Pachucki, K.; Tupitsyn, I. I.; Yerokhin, V. A.
In: Physical Review Letters, Vol. 94, No. 21, 213002, 03.06.2005.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - QED corrections to the parity-nonconserving 6s-7s amplitude in Cs133
AU - Shabaev, V. M.
AU - Pachucki, K.
AU - Tupitsyn, I. I.
AU - Yerokhin, V. A.
PY - 2005/6/3
Y1 - 2005/6/3
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=27744453606&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.94.213002
DO - 10.1103/PhysRevLett.94.213002
M3 - Article
AN - SCOPUS:27744453606
VL - 94
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 21
M1 - 213002
ER -
ID: 35329347