Spectroscopy in Support of Parity Nonconservation Measurements: the A2Π-X2Σ+ (0,0) Band of Barium Monfluoride

Details Spectroscopy in Support of Parity Nonconservation Measurements: the A2Π-X2Σ+ (0,0) Band of Barium Monfluoride Spectroscopy in Support of Parity Nonconservation Measurements: the A2Π-X2Σ+ (0,0) Band of Barium Monfluoride

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..conferg13l&link_type=abstract

"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec

Physics

Mini-Symposium: Metal Containing Molecules

Scientific paper

There is renewed interest in the spectroscopy of heavy metal containing polar radical diatomic molecules because they provide a sensitive venue for detection of parity nonconservation (PNC) either from the determination of the electric dipole moment (EDM) of the electron, de, or detection of the interaction of the anapole moment of the nuclei with the unpaired electron. The effects due to de are nuclear spin independent and studies of both the even and odd nuclear spin isotopologues are relevant. Recently, DeMille et al proposed using an odd isotopologue of barium monofluoride, 137BaF, to measure the nuclear spin-dependent parity non-conservation (NSD-PNC) effect resulting from the interaction of the anapole moment of 137Ba with the unpaired electron of the X2Σ+ electronic state. Here we report on the analysis of the field-free spectrum of the A2Π-X2Σ+(0,0) band of 137BaF and an analysis of the 137Ba(I=3/2) and 19F(I=1/2) hyperfine interaction in the A2Π state. The hyperfine interaction in the X2Σ+ state has been previously characterized from the analysis of the pure rotation spectrum. The optimal optical transitions for monitoring 137BaF in future PNC measurements will be discussed.
M. G. Kozlov, A. V. Titov, N. S. Mosyagin, and P. V. Souchko, Phys. Rev. A: At., Mol., and Opt. Phys. 56 R3326, 1997.
D. DeMille, S. B.Cahn, D.Murphree, D. A. Rahmlow, and M. G.Kozlov Phys. Rev. Letts. 100 023003, 2008.
Ch. Ryzlewicz, H-.U.Schutze-Pahlmann, J. Hoeft and T. Torring, Chem.Phys. 71 389, 1982.

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