Elastic scattering of protons on helium nuclei in the energy range 700--1000 MeV

Journal Article · Sun Dec 01 04:00:00 EST 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5713331

Velichko, G N; Vorob'ev, A A; Dobrovol'skii, A V; Korolev, G A; Manaenkov, S I; Saudinos, J; Khanzadeev, A V

By means of an apparatus consisting of a recoil-nucleus detector and a spectrometer of proportional chambers the differential cross sections for elastic p/sup 4/He scattering at small angles have been measured at 695, 793, 890, and 991 MeV. The systematic error in absolute normalization of the cross sections is +- 2%. For each of the energies we have found in analysis of experimental data the total cross section, the diffraction-cone slope parameter, and the total cross section for p/sup 4/He scattering. The results of the measurements are compared with a calculation according to the Glauber-Sitenko model in which nucleon-nucleon amplitudes obtained from a phase-shift analysis were used. It is shown that the slope of the calculated differential cross sections systematically exceeds the slope of the experimental differential cross sections. It is noted that one of possible reasons for the discrepancy observed can be an admixture of multiquark bags in the /sup 4/He nucleus.

• Research Organization: Leningrad Institute of Nuclear Physics, USSR Academy of Sciences
• OSTI ID: 5713331
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 42:6; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

651225* -- Nuclear Properties & Reactions
A=1-5
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY RANGE
EXPERIMENTAL DATA
HADRON REACTIONS
HELIUM 4 TARGET
INFORMATION
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PROTON REACTIONS
SCATTERING
TARGETS
TOTAL CROSS SECTIONS