/sup 3,4/He(p,. pi. /sup +/)/sup 4,5/He/sub g. s/ reactions at 800 MeV

Journal Article · Wed Feb 01 04:00:00 EST 1984 · Phys. Rev. C; (United States)

OSTI ID:6856377

Hoeistad, B; Gazzaly, M; Aas, B; Igo, G; Rahbar, A; Whitten, C; Adams, G S; Whitney, R

Angular distributions of the differential cross section and the analyzing power for ground state transitions in the /sup 3,4/He(p,..pi../sup +/)/sup 4,5/He reactions have been measured at 800 MeV using a polarized proton beam. The angular distributions of the analyzing power A/sub y/ reveal a surprisingly strong spin dependence in these reactions. The analyzing power from the /sup 3/He(p,..pi../sup +/) /sup 4/He reaction is compared with A/sub y/ data from elastic p-He scattering, the pp..-->..d..pi.. reaction, and pion nucleon scattering, in order to find an indication of the origin to the spin dependence. Reasonably good agreement is obtained with the pion-nucleon A/sub y/ data when momentum sharing is assumed between the nuclear vertices involved in a pion rescattering diagram of the (p,..pi..) reaction.

• Research Organization: University of Texas at Austin, Austin, Texas 78712
• OSTI ID: 6856377
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 29:2; 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
ACCELERATORS
ALPHA DECAY RADIOISOTOPES
ANALYZING POWER
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYON REACTIONS
BEAMS
BOSONS
CAPTURE
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
HADRONS
HELIUM 3 TARGET
HELIUM 4
HELIUM 4 TARGET
HELIUM 5
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LAMPF LINAC
LIGHT NUCLEI
LINEAR ACCELERATORS
MESON FACTORIES
MESONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PIONS
PIONS PLUS
POLARIZED BEAMS
PROTON REACTIONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPIN
STABLE ISOTOPES
TARGETS