Isospin dependence of s-wave pion absorption in the A = 3 nuclei

Journal Article · Mon May 27 04:00:00 EDT 1985 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.54.2321· OSTI ID:5400478

Werntz, C; Valk, H S

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 /sup 3/H and /sup 3/He should be equal, aside from renormalization due to the different ..pi../sup -/ atomic wave-function length scales. The /sup 3/H 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 mirrior pair.

• Research Organization: The Catholic University of America, Washington, D.C. 20064
• OSTI ID: 5400478
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 54:21; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

651215* -- Nuclear Properties & Reactions
A=1-5
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BRANCHING RATIO
CAPTURE
CHARGED-PARTICLE REACTIONS
FUNCTIONS
HADRON REACTIONS
HAMILTONIANS
HELIUM 3 TARGET
ISOSPIN
MATHEMATICAL OPERATORS
MESON REACTIONS
NUCLEAR REACTIONS
PARTIAL WAVES
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION REACTIONS
PROPAGATOR
QUANTUM OPERATORS
RENORMALIZATION
S WAVES
SPIN
TARGETS
TRITIUM TARGET
WAVE FUNCTIONS