Spin-flip cross sections for /sup 13/C(/ital p/rvec //,/ital n/rvec //)/sup 13/N(g. s. ) at 500 MeV

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.40.237· OSTI ID:5895835

Ray, L; Shepard, J R

It was recently shown that analyzing power data for 500 MeV(/ital p/,/ital n/) charge exchange from /sup 15/N could not beadequately explained by either relativistic or nonrelativistic distorted waveimpulse approximation models. In general, reaction models which incorporaterelativistic dynamics provide a successful description of proton-nucleuselastic scattering at intermediate energies. It is therefore important tounderstand the reasons for the apparent failure of the theoretical models withrespect to the description of (/ital p/,/ital n/) charge exchange data from oddtargets. In this work a method of analyzing intermediate energy(/ital p/,/ital n/) reaction data from odd target nuclei is presented whichfocuses attention on specific dynamical elements of the relativistic distortedwave impulse approximation model. Included in these elements are the differentpieces of the Lorentz invariant nucleon-nucleon isovector effective interactionand the aspects of nuclear structure associated with the valence nucleon. Theanalysis utilizes certain linear combinations of the (/ital p/rvec //,/ital n/rvec //)polarization transfer observables, the important quantities being thetransverse and longitudinal spin-flip cross sections and the projectileno-spin-flip cross section. The method is illustrated with relativisticdistorted wave impulse approximation calculations for the/sup 13/C(/ital p/rvec //,/ital n/rvec //)/sup 13/N(g.s.) reaction at 500MeV. It is intended that analyses of this type will provide an important toolfor diagnosing the apparent inadequacies with the theoretical description ofintermediate energy (/ital p/,/ital n/) charge exchange from odd nuclei.

• Research Organization: Department of Physics, University of Texas, Austin, Texas 78712(US); Department of Physics, University of Colorado, Boulder, Colorado 80309
• OSTI ID: 5895835
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 40:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BARYONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CARBON 13 TARGET
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DISTORTED WAVE THEORY
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
FIELD THEORIES
GENERAL RELATIVITY THEORY
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
IMPULSE APPROXIMATION
INFORMATION
INTERACTIONS
INVARIANCE PRINCIPLES
ISOBARIC ANALOGS
ISOTOPES
LIGHT NUCLEI
LORENTZ INVARIANCE
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NITROGEN 13
NITROGEN ISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
PARTICLE INTERACTIONS
POLARIZED BEAMS
POLARIZED PRODUCTS
PROTON REACTIONS
RADIOISOTOPES
RELATIVITY THEORY
SHELL MODELS
SPIN FLIP
TARGETS
VALENCE