Lifetime of the 2p state in He II

Authors

Gordon W. F. Drake, University of WindsorFollow
J. Patel
A. Van Wijngaarden

Document Type

Article

Publication Date

1983

Publication Title

Physical Review A

Volume

28

Issue

6

First Page

3340

Last Page

3348

Abstract

When a beam of spin-polarized metastable He+(2s12) ions is quenched by an electric field E', the emitted radiation intensity contains an asymmetry term proportional to (kE)(P'k×E), where P' is the spin-polarization vector and k is the direction of observation. The resulting asymmetry is nearly proportional to the level width of the 2p12 state in He+. The measured asymmetry 0.007 602 70.000 020 3 corresponds to a lifetime 2p=(0.99920.0026)×10-10 sec, in fair agreement with the theoretical value 2p=0.9972×10-10 sec. © 1983 The American Physical Society.

Comments

copyright American Physical Society http://dx.doi.org/10.1103/PhysRevA.28.3340

Recommended Citation

Drake, Gordon W. F.; Patel, J.; and Van Wijngaarden, A.. (1983). Lifetime of the 2p state in He II. Physical Review A, 28 (6), 3340-3348.
https://scholar.uwindsor.ca/physicspub/93