Antinucleon as a probe of nuclear spin and isospin excitations

Journal Article · Thu Dec 01 04:00:00 EST 1983 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.28.2368· OSTI ID:5372829

Dover, C B; Sainio, M E; Walker, G E

Using two models for the antinucleon-nucleon (NN) interaction, we obtain complex, energy dependent NN transition operators t appropriate for (N,N') inelastic scattering studies on complex nuclei. It is shown that the spin-isospin dependence of the NN annihilation potential plays an important role in determining the dominant spin-isospin modes in the nuclear response. In particular, for the most realistic of our NN models, a large spin dependent component t/sub sigma/ is obtained, leading to the strong excitation of isoscalar spin-flip states; this term is suppressed in the corresponding NN t matrix. The central spin and isospin independent term, t/sub 0//sup c/, is large for NN, at all relevant momentum transfers q. At high q the isoscalar spin-orbit (t/sub 0//sup L/S) and isovector tensor (t/sub tau//sup T/) components are important. Cross section and analyzing power predictions for N inelastic scattering as well as corrections due to energy and density dependence are discussed.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5372829
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 28:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR MOMENTUM
ANNIHILATION
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
CROSS SECTIONS
DISTORTED WAVE THEORY
ELECTROMAGNETIC INTERACTIONS
ENERGY DEPENDENCE
ENERGY LEVELS
HADRON-HADRON INTERACTIONS
HIGH SPIN STATES
IMPULSE APPROXIMATION
INELASTIC SCATTERING
INTERACTIONS
ISOSPIN
MATRICES
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
S MATRIX
SCATTERING
SPIN