Isospin Dependence of s-wave Pion Absorption in the A=3 Nuclei

Carl Werntz and H. S. Valk
Phys. Rev. Lett. 54, 2321 – Published 27 May 1985
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Abstract

On the basis of microscopic models for s-wave pion absorption on nucleon pairs the contribution of T=1 pairs compared to T=0 pairs should be strongly suppressed. A direct consequence, not previously noted, is that the 1s absorption widths in the pionic atoms H3 and He3 should be equal, aside from renormalization due to the different π-atomic wave-function length scales. The H3 width, which is not directly observable, is thus predicted to be 2.25 ± 0.55 eV. It is shown that this value is consistent with observed branching ratios for radiative capture in the mirror pair.

  • Received 26 December 1984

DOI:https://doi.org/10.1103/PhysRevLett.54.2321

©1985 American Physical Society

Authors & Affiliations

Carl Werntz

  • The Catholic University of America, Washington, D.C. 20064

H. S. Valk

  • Georgia Institute of Technology, Atlanta, Georgia 30332

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Issue

Vol. 54, Iss. 21 — 27 May 1985

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