/sup 3,4/He(. pi. /sup -/,n)/sup 2,3/H and /sup 3/He(. pi. /sup -/,. pi. /sup 0/)/sup 3/H at 285--575 MeV

Journal Article · Mon Nov 01 04:00:00 EST 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.26.2111· OSTI ID:6616746

Orphanos, L; McCarthy, J S; Minehart, R C; Gram, P A.M.; Hoeistad, B; Perdrisat, C F; Kaellne, J

We have measured the reactions /sup 3,4/He(..pi../sup -/,n)/sup 2,3/H at T/sub ..pi../ = 285, 428, 525, and 575 MeV over an angular range theta/sub n/ = 18/sup 0/--134/sup 0/ in the center-of-momentum frame, and the reaction /sup 3/He(..pi../sup -/,..pi../sup 0/)/sup 3/H at T/sub ..pi../ = 285, 428, and 525 MeV over an angular range theta/sub pi0/ = 60/sup 0/--140/sup 0/. The pion absorption is found to proceed by a two-nucleon mechanism, with an energy dependence consistent with the formation of an I = (1/2) resonance in the intermediate state. The pion single-charge exchange is discussed within the framework of the optical and Glauber models, and the dependence on the /sup 3/He electromagnetic form factors is discussed. We also examine the isospin dependence of the ..pi..-nuclear Hamiltonian.

• Research Organization: University of Virginia, Charlottesville, Virginia 22901
• OSTI ID: 6616746
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 26:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651225* -- Nuclear Properties & Reactions
A=1-5
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BOSONS
CAPTURE
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
DEUTERIUM
DISTRIBUTION
ELECTROMAGNETIC FORM FACTORS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FORM FACTORS
GLAUBER THEORY
HADRON REACTIONS
HADRONS
HAMILTONIANS
HELIUM 3 TARGET
HELIUM 4 TARGET
HYDROGEN ISOTOPES
ISOSPIN
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL OPERATORS
MESON REACTIONS
MESONS
MEV RANGE
MEV RANGE 100-1000
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OPTICAL MODELS
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION REACTIONS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
QUANTUM OPERATORS
RADIOISOTOPES
STABLE ISOTOPES
TARGETS
TRITIUM
YEARS LIVING RADIOISOTOPES