EGAS41 - Swansea University

41 st EGAS CP 50 Gdańsk 2009
Atomic parity nonconservation in heavy atoms and observing
P and PT violation using NMR shift in a laser beam
O.Yu. Khetselius 1,∗
1 Odessa State University, P.O.Box 24a, 65009, Odessa-9, SE, Ukraine
∗ Corresponding author: nuclei08@mail.ru
During the past decade, the optical experiments to detect atomic parity nonconservation
(PNC) have progressed to the point where PNC amplitudes can be measured with accuracy
on the level of a few percents in certain heavy atoms [1]. Nowdays the PNC in
atoms has a potential to probe a new physics beyond the standard model. Promising idea
(Forston) is to apply the techniques of laser cooling and ion trapping to measurement of
the PNC in 6s 2 S 1/2 -5d 2 D 3/2 transition of the Ba + . In our paper we systematically apply
the QED many-body perturbation theory [2] to precise studying PNC effect in heavy
atoms with account for nuclear, QED corrections. We present the calculation results for
energy levels, hyperfine structure in-tervals, E1−,M1−transitions amplitudes in heavy
atoms of 133 Cs, 137 Ba + , 119 Sn. As example, let us present below the calculation result
for the parity non-conserving 6s − 7p dipole amplitude in Cs. Our calculation gives the
value: D=< 6s|Dz|7s >=−0.903i|e|a(−Q w /N). The received data are compared with
known earlier and recent results by Dzuba etal (Novosibirsk), by Bouchiat etal (Paris),
by Johnson et al (Indiana), by Johnson-Sapirstein-Blundell (Notre Dame). We discuss
a new improved possibility for observing P and PT violation using a nuclear magnetic
resonance (NMR) frequency shift in a laser beam (c.f.paper by Sushkov [1]). This shift is
provided by a correlation of a nuclear spin with the momentum of photon (Ik).
References
[1] W. Johnson, J. Sapirstein, S. Blundell, Phys. Scr. T46, 184 (1993); O. Sushkov, Phys.
Scr. T46, 193 (1993); B. Sahoo, B. Das, et al., Phys. Rev. A75, 032507 (2007)
[2] A.V. Glushkov, O.Yu. Khetselius et al., Recent Advances in Theory of Phys. and
Chem. Systems (Springer, Berlin) 15, 285-308 (2006); O.Yu. Khetselius, Phys. Scr.
T134, 305090 (2009); Int. J. Quant. Chem. 109, 1813 (2009)
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