Elastic collisions between light nuclei and the phase variation of the nucleon-nucleon scattering amplitude

Journal Article · Fri Aug 01 04:00:00 EDT 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.34.608· OSTI ID:5490830

Franco, V; Yin, Y

Elastic collisions between light nuclei are investigated at medium energies using Glauber theory. It is shown that a phase variation of the nucleon-nucleon elastic scattering amplitude leads to large increases in the calculated differential cross sections, even away from the minima that would occur if there were no phase variation. The relatively small number of minima that occur with no phase variation is explained in terms of the relative lack of strong destructive interference among multiple scattering amplitudes due to their relatively slow decrease with increasing momentum transfer. The introduction of a phase variation leads to even fewer minima. Calculations with no phase variation are in marked disagreement with ..cap alpha.. /sup 4/He, ..cap alpha.. /sup 3/He, ..cap alpha.. /sup 2/H and ..cap alpha.. /sup 1/H data at 7 GeV/c-italic and ..cap alpha.. /sup 4/He data at 5.07 and 4.32 GeV/c-italic. The presence of a phase variation leads to a substantial improvement.

• Research Organization: Physics Department, Brooklyn College of the City University of New York, Brooklyn, New York 11210
• OSTI ID: 5490830
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 34:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651215* -- Nuclear Properties & Reactions
A=1-5
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
AMPLITUDES
BARYON-BARYON INTERACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERIUM TARGET
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY RANGE
GEV RANGE
GEV RANGE 01-10
GLAUBER THEORY
HADRON-HADRON INTERACTIONS
HELIUM 3 TARGET
HELIUM 4 TARGET
HYDROGEN 1 TARGET
INTERACTIONS
MOMENTUM TRANSFER
MULTIPLE SCATTERING
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PHASE TRANSFORMATIONS
SCATTERING
SCATTERING AMPLITUDES
TARGETS