Fortson, E.N.
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Search for Parity Nonconservation in Atomic Bismuth

Soreide, D.C. ; Roberts, D.E. ; Lindahl, E.G. ; et al.
Phys.Rev.Lett. 36 (1976) 352-355, 1976.
Inspire Record 112866 DOI 10.17182/hepdata.21089

In a search for optical rotation near the 8755-Å magnetic-dipole absorption line in atomic Bi, our first results set an upper limit F<10−6 on a parity nonconserving amplitude associated with the line. This limit improves upon earlier parity tests in atoms by three orders of magnitude. Further improvement of at least another order of magnitude appears possible by this method which should then provide an exacting test of parity conservation in the neutral weak-current interaction in atoms.

1 data table
Table 1

No description provided.


Upper limit on parity nonconserving optical rotation in atomic bismuth

Lewis, L.L. ; Hollister, J.H. ; Soreide, D.C. ; et al.
Phys.Rev.Lett. 39 (1977) 795-798, 1977.
Inspire Record 128258 DOI 10.17182/hepdata.20948

We have searched for optical rotation near the 8757-Å magnetic-dipole absorption line in atomic bismuth vapor. The experiment is sensitive to parity nonconservation in the weak neutral-current interaction between electrons and nucleons in atoms. We find R≡Im(E1M1)=(−0.7±3.2)×10−8, which is considerably smaller than the value R=−2.5×10−7 obtained by central-field calculations for this bismuth line using the Weinberg-Salam theory of neutral currents.

1 data table
Table 1

No description provided.


Measurement of Parity Nonconservation in Atomic Bismuth

Hollister, J.H. ; Apperson, G.R. ; Lewis, L.L. ; et al.
Phys.Rev.Lett. 46 (1981) 643-646, 1981.
Inspire Record 942914 DOI 10.17182/hepdata.20642

Parity-nonconserving optical rotation has been observed and measured on the 8757-ÅA magnetic-dipole absorption line in atomic bismuth vapor. The result, R≡Im(E1M1)=(−10.4±1.7)×10−8, is of the approximate size calculated with use of the Weinberg-Salam theory of the weak neutral-current interaction with sin2θW=0.23.

1 data table
Table 1

Axis error includes +- 0.0/0.0 contribution (?////NOT GIVEN).