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

Abstract

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.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Leningrad Institute of Nuclear Physics, USSR Academy of Sciences
OSTI Identifier:
5713331
Resource Type:
Journal Article
Resource Relation:
Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States); Journal Volume: 42:6
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; HELIUM 4 TARGET; PROTON REACTIONS; ELASTIC SCATTERING; DIFFERENTIAL CROSS SECTIONS; EXPERIMENTAL DATA; MEV RANGE 100-1000; TOTAL CROSS SECTIONS; BARYON REACTIONS; CHARGED-PARTICLE REACTIONS; CROSS SECTIONS; DATA; ENERGY RANGE; HADRON REACTIONS; INFORMATION; MEV RANGE; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUMERICAL DATA; SCATTERING; TARGETS; 651225* - Nuclear Properties & Reactions, A=1-5, Experimental- Nuclear Reactions & Scattering- (-1987)

Citation Formats

Velichko, G.N., Vorob'ev, A.A., Dobrovol'skii, A.V., Korolev, G.A., Manaenkov, S.I., Saudinos, J., and Khanzadeev, A.V. Elastic scattering of protons on helium nuclei in the energy range 700--1000 MeV. United States: N. p., 1985. Web.
Velichko, G.N., Vorob'ev, A.A., Dobrovol'skii, A.V., Korolev, G.A., Manaenkov, S.I., Saudinos, J., & Khanzadeev, A.V. Elastic scattering of protons on helium nuclei in the energy range 700--1000 MeV. United States.
Velichko, G.N., Vorob'ev, A.A., Dobrovol'skii, A.V., Korolev, G.A., Manaenkov, S.I., Saudinos, J., and Khanzadeev, A.V. Sun . "Elastic scattering of protons on helium nuclei in the energy range 700--1000 MeV". United States. doi:.
@article{osti_5713331,
title = {Elastic scattering of protons on helium nuclei in the energy range 700--1000 MeV},
author = {Velichko, G.N. and Vorob'ev, A.A. and Dobrovol'skii, A.V. and Korolev, G.A. and Manaenkov, S.I. and Saudinos, J. and Khanzadeev, A.V.},
abstractNote = {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.},
doi = {},
journal = {Sov. J. Nucl. Phys. (Engl. Transl.); (United States)},
number = ,
volume = 42:6,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 1985},
month = {Sun Dec 01 00:00:00 EST 1985}
}