Spin and isospin effects in elastic P- /sup 4/He scattering near 1 GeV

Journal Article · Thu Apr 01 04:00:00 EST 1982 · Ann. Phys. (N.Y.); (United States)

DOI:https://doi.org/10.1016/0003-4916(82)90203-2· OSTI ID:5266640

Parmentola, J A; Feshbach, H

The coupled-channel method for multiple scattering is employed to describe the p- /sup 4/He elastic-scattering data for a proton laboratory energy of 1.03 GeV. Particular attention is paid to the double spin-flip, double isospin-flip, double spin-isospin flip and to the effects of isobar excitation of the incident proton. It is found that the presently available data is consistent with either the excitation and deexcitation of the proton to an isobar by the /sup 4/He nucleus or the presence of relatively large double spin-flip nucleon--nucleon amplitudes. The physical difference between these two hypothesis is discussed.

• Research Organization: Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 5266640
• Journal Information: Ann. Phys. (N.Y.); (United States), Journal Name: Ann. Phys. (N.Y.); (United States) Vol. 139:2; ISSN APNYA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
ANGULAR MOMENTUM
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
DIFFERENTIAL EQUATIONS
ELASTIC SCATTERING
ENERGY RANGE
EQUATIONS
FUNCTIONS
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HELIUM 4 TARGET
INTERACTIONS
ISOSPIN
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
OPTICAL MODELS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
POTENTIALS
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
SCATTERING
SCATTERING AMPLITUDES
SCHROEDINGER EQUATION
SPIN
SPIN FLIP
TARGETS
WAVE EQUATIONS
WAVE FUNCTIONS