Nucleon--nucleon scattering in the range 0--3 GeV and quark degrees of freedom in nuclei
The optical model based on a deep attractive /ital NN/ potential with forbidden states gives a good description of the variation of the angular distribution of /ital np/ scattering from the /ital U/ shape at energies /ital E//sub lab/ less than or equal to800 MeV to the forward-scattering cone at /ital E//sub lab/ greater than or equal to1 GeV. The evolution of the differential cross section for /ital pp/ scattering is also described well. Reconstruction of the behavior of the /ital NN/ phase shifts for energies from zero to /similar to/2.5 GeV shows that just at energies /ital E//sub lab/ greater than or equal to1 GeV the /ital P/ phase shifts/sup 2/ital S/+1/ delta/sup /ital J///sub 1/(/ital E/), decreasing from delta=..pi.. (at low energies), pass through delta/congruent/..pi../2 and the /ital P/ waves interfere destructively with the /ital S/ and /ital D/ waves in the backward hemisphere. The real part of the potential can be distinguished on the background of the absorption, which increases with energy up to energies /ital E//sub lab/ /congruent/2.5 GeV.
- Research Organization:
- Institute of Nuclear Physics, Moscow State University(SU)
- OSTI ID:
- 6392048
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 48:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEON-NUCLEON INTERACTIONS
SCATTERING
ANGULAR DISTRIBUTION
D WAVES
DEGREES OF FREEDOM
GEV RANGE 01-10
MEV RANGE 100-1000
NUCLEON-NUCLEON POTENTIAL
OPTICAL MODELS
P WAVES
PHASE SHIFT
PROTON-NEUTRON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUARKS
S WAVES
BARYON-BARYON INTERACTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
MEV RANGE
PARTIAL WAVES
PARTICLE INTERACTIONS
POSTULATED PARTICLES
POTENTIALS
PROTON-NUCLEON INTERACTIONS
645201* - High Energy Physics- Particle Interactions & Properties-Theoretical- General & Scattering Theory
653003 - Nuclear Theory- Nuclear Reactions & Scattering