High Resolution Rotational Spectroscopy Study of the Zeeman Effect in the ^2Π1/2 Molecule PbF

Details High Resolution Rotational Spectroscopy Study of the Zeeman Effect in the ^2Π1/2 Molecule PbF High Resolution Rotational Spectroscopy Study of the Zeeman Effect in the ^2Π1/2 Molecule PbF

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confera08b&link_type=abstract

"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec

Physics

Mini-Symposium: Fundamental Physics

Scientific paper

Motivated by the ongoing search for the CP-violating electron electric dipole moment (e-EDM), rotational spectra of the radicals 207Pb19F and 208Pb19F were measured using a supersonic jet Fourier transform microwave spectrometer. Zeeman splitting was examined for 10 207PbF and 9 208PbF J=1/2 and J=3/2 transitions using three pairs of Helmholtz coils capable of generating magnetic fields up to ˜4 Gauss. Transitions were observed with 0.5 kHz accuracy over a range of 2-26.5 GHz. Zeeman splittings as small as 6 kHz were able to be resolved. The observation of these field dependent spectra allowed for the determination of the two body-fixed g-factors, G∥ and G⊥, of the electronic wave function. The final values obtained compare reasonably well with recently calculated values and will be reported at the meeting. The precise determination of the body fixed g-factors is an important step in a possible future e-EDM experiment using either the 207Pb19F or 208Pb19F molecule. Acknowledgments: Work at Brookhaven National Laboratory was carried out under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy and supported by its Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences. Work by N. E. Shafer-Ray was performed with support from the National Science Foundatation award NSF-0855431. J.-U. Grabow acknowledges funding from the Deutsche Forschungsgemeinschaft and the Land Niedersachsen. RJM and ALB appreciate the support of a Sontag Research Fellowship from Pomona College.

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