dorsal/arxiv
View SchemaQED corrections to the parity-nonconserving 6s-7s amplitude in $^{133}$Cs
| Authors | V. M. Shabaev, K. Pachucki, I. I. Tupitsyn, V. A. Yerokhin |
|---|---|
| Categories | |
| ArXiv ID | physics/0501165 |
| URL | https://arxiv.org/abs/physics/0501165 |
| DOI | 10.1103/PhysRevLett.94.213002 |
| Journal | Phys. Rev. Lett. 94, 213002 (2005) |
Abstract
The complete gauge-invariant set of the one-loop QED corrections to the parity-nonconserving 6s-7s amplitude in $^{133}$Cs is evaluated to all orders in $\alpha Z$ using a local version of the Dirac-Hartree-Fock potential. The calculations are peformed in both length and velocity gauges for the absorbed photon. The total binding QED correction is found to be -0.27(3)%, which differs from previous evaluations of this effect. The weak charge of $^{133}$Cs, derived using two most accurate values of the vector transition polarizability $\beta$, is $Q_W=-72.57(46)$ for $\beta = 26.957(51) a_{\rm B}^3$ and $Q_W=-73.09(54)$ for $\beta= 27.15(11)a_{\rm B}^3 $. The first value deviates by $1.1\sigma$ from the prediction of the Standard Model, while the second one is in perfect agreement with it.
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"abstract": "The complete gauge-invariant set of the one-loop QED corrections to the\nparity-nonconserving 6s-7s amplitude in $^{133}$Cs is evaluated to all orders\nin $\\alpha Z$ using a local version of the Dirac-Hartree-Fock potential. The\ncalculations are peformed in both length and velocity gauges for the absorbed\nphoton. The total binding QED correction is found to be -0.27(3)%, which\ndiffers from previous evaluations of this effect. The weak charge of\n$^{133}$Cs, derived using two most accurate values of the vector transition\npolarizability $\\beta$, is $Q_W=-72.57(46)$ for $\\beta = 26.957(51) a_{\\rm\nB}^3$ and $Q_W=-73.09(54)$ for $\\beta= 27.15(11)a_{\\rm B}^3 $. The first value\ndeviates by $1.1\\sigma$ from the prediction of the Standard Model, while the\nsecond one is in perfect agreement with it.",
"arxiv_id": "physics/0501165",
"authors": [
"V. M. Shabaev",
"K. Pachucki",
"I. I. Tupitsyn",
"V. A. Yerokhin"
],
"categories": [
"physics.atom-ph",
"physics.gen-ph"
],
"doi": "10.1103/PhysRevLett.94.213002",
"journal_ref": "Phys. Rev. Lett. 94, 213002 (2005)",
"title": "QED corrections to the parity-nonconserving 6s-7s amplitude in $^{133}$Cs",
"url": "https://arxiv.org/abs/physics/0501165"
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