Calculation of radiative corrections to the effect of parity nonconservation in heavy atoms

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dc.creatorMilstein, A. I.
dc.creatorSushkov, O. P.
dc.creatorTerekhov, I. S.
dc.date2002-12-04
dc.date.accessioned2026-07-07T12:02:57Z
dc.date.available2026-07-07T12:02:57Z
dc.descriptionWe calculate the self-energy and the vertex radiative corrections to the effect of parity nonconservation in heavy atoms. The sum of the corrections is of the form ${\cal A}\ln(λ_C/r_0)+{\calB}$, where ${\cal A}$ and ${\cal B}$ are functions of $Zα$, and $λ_C$ and $r_0$ are the Compton wavelength and the nuclear radius, respectively. The function ${\cal A}$ is calculated exactly in $Zα$ and the function ${\cal B}$ is calculated in the leading order. In the leading order ${\cal A}\propto α(Zα)^2$ and ${\cal B}\propto α(Zα)$. The sum of the corrections is -0.85% for Cs and -1.48% for Tl. Using these results we have performed analysis of the experimental data on atomic parity nonconservation. The values obtained for the nuclear weak charge, $Q_W=-72.81(28)_{exp}(36)_{theor}$ for Cs and $Q_W=-116.8(1.2)_{exp}(3.4)_{theor}$ for Tl, agree with predictions of the standard model within $0.6σ$. As an application of our approach we have also calculated dependence of the Lamb shift on the finite nuclear size.
dc.description14 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0212072
dc.identifierhttp://arxiv.org/abs/hep-ph/0212072
dc.identifierPhys.Rev.A67:062103,2003
dc.identifierdoi:10.1103/PhysRevA.67.062103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207618
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.subjectAtomic Physics
dc.titleCalculation of radiative corrections to the effect of parity nonconservation in heavy atoms
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