Antinucleon as a probe of nuclear spin and isospin excitations

Journal Article · Thu Dec 01 00:00:00 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), Vol. 28:6
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
NUCLEON-ANTINUCLEON INTERACTIONS
INELASTIC SCATTERING
ANALYZING POWER
ANNIHILATION
CROSS SECTIONS
DISTORTED WAVE THEORY
ENERGY DEPENDENCE
HIGH SPIN STATES
IMPULSE APPROXIMATION
ISOSPIN
S MATRIX
SPIN
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
ELECTROMAGNETIC INTERACTIONS
ENERGY LEVELS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MATRICES
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
SCATTERING
653003* - Nuclear Theory- Nuclear Reactions & Scattering
645205 - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions
Baryon No. = 0- (-1987)