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Investigation of the proton-proton elastic scattering amplitude at 1 GeV (phase-shift analysis)

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6563206
;
A phase-shift analysis of pp elastic scattering at 1 GeV is carried through and the question of its ambiguity is investigated systematically for the first time. All the available experimental data at energies near 1 GeV were used, including the results of recent measurements of the total-cross-section differences Ds/sub L/ and Ds/sub T/ for pure spin states, the parameters C/sub L/L and A, and the differential cross section in the Coulomb-interference region. The random-search method was used to find solutions, a total of 533 trials being made. As a result of the work, 11 significantly different solutions were found. Introducing the dispersion-relation predictions for the two spin-dependent amplitudes at q = 0 into the analysis made it possible to reduce the number of solutions to five, of which only two have a negative /sup 1/S/sub 0/ phase shift.
Research Organization:
Leningrad Institute of Nuclear Physics, Academy of Sciences of the USSR
OSTI ID:
6563206
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 31:6; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYON-BARYON INTERACTIONS
CROSS SECTIONS
DATA
DISPERSION RELATIONS
ELASTIC SCATTERING
ENERGY RANGE
EXPERIMENTAL DATA
HADRON-HADRON INTERACTIONS
INFORMATION
INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PHASE SHIFT
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
SCATTERING
SCATTERING AMPLITUDES
TOTAL CROSS SECTIONS