Summation of the high orders of perturbation theory for the parity nonconserving E1-amplitude of the 6s–7s transition in the caesium atom
Three dominating subsequences of diagrams in the correlation correction to amplitude are
summed: screening of the electron-electron interaction, particle-hole interaction, and the
iterations of the self-energy. The result of the calculations is E1 (6s–7s)=(0.91±0.01)× 10− 11
iea B (− Q w/N), Q w is the weak charge of the nucleus, N is the number of neutrons. A recent
experiment of Noecker et al. and our calculation give the following value of the Weinberg
angle: sin 2 θ w= 0.226±0.007 (exp)±0.004 (theor).
summed: screening of the electron-electron interaction, particle-hole interaction, and the
iterations of the self-energy. The result of the calculations is E1 (6s–7s)=(0.91±0.01)× 10− 11
iea B (− Q w/N), Q w is the weak charge of the nucleus, N is the number of neutrons. A recent
experiment of Noecker et al. and our calculation give the following value of the Weinberg
angle: sin 2 θ w= 0.226±0.007 (exp)±0.004 (theor).
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