PRELIMINARY OBSERVATION OF PARITY NON-CONSERVATION IN ATOMIC THALLIUM

被引:112
作者
CONTI, R [1 ]
BUCKSBAUM, P [1 ]
CHU, S [1 ]
COMMINS, E [1 ]
HUNTER, L [1 ]
机构
[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT & MOLEC RES SCI,BERKELEY,CA 94720
关键词
D O I
10.1103/PhysRevLett.42.343
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Parity nonconservation is observed in the 6P122-7P122 transition in thallium. Absorption of circularly polarized 293-nm photons by 6P122 atoms in an E field results in polarization of the 7P122 state through interference of Stark E1 amplitudes with M1 and parity-nonconserving E1 amplitudes M and Ep. Detection of this polarization yields the circular dichroism δ=+(5.2±2.4)×10-3, which agrees in sign and magnitude with theoretical estimates based on the Weinberg-Salam model. © 1979 The American Physical Society.
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页码:343 / 346
页数:4
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