Measurements of Forward Proton Production with Incident Protons and Charged Pions on Nuclear Targets at the CERN Proton Synchroton

The HARP collaboration Apollonio, M. ; Artamonov, A. ; Bagulya, A. ; et al.
Phys.Rev.C 82 (2010) 045208, 2010.
Inspire Record 857228 DOI 10.17182/hepdata.56498

Measurements of the double-differential proton production cross-section in the range of momentum 0.5 GeV/c < p < 8.0 GeV/c and angle 0.05 rad < \theta < 0.25 rad in collisions of charged pions and protons on beryllium, carbon, aluminium, copper, tin, tantalum and lead are presented. The data were taken with the large acceptance HARP detector in the T9 beam line of the CERN Proton Synchrotron. Incident particles were identified by an elaborate system of beam detectors and impinged on a target of 5 % of a nuclear interaction length. The tracking and identification of the produced particles was performed using the forward spectrometer of the HARP experiment. Results are obtained for the double-differential cross-sections mainly at four incident beam momenta (3 GeV/c, 5 GeV/c, 8 GeV/c and 12 GeV/c). Measurements are compared with predictions of the GEANT4 and MARS Monte Carlo generators.

84 data tables

Differential cross section for proton production with a negative pion beam and Beryllium target in the angular range 0.050 to 0.100 radians. The errors are the square-root of the diagonal elements of the covariant matrix.

Differential cross section for proton production with a negative pion beam and Beryllium target in the angular range 0.100 to 0.150 radians. The errors are the square-root of the diagonal elements of the covariant matrix.

Differential cross section for proton production with a negative pion beam and Beryllium target in the angular range 0.150 to 0.200 radians. The errors are the square-root of the diagonal elements of the covariant matrix.

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Cross-Sections of Large-Angle Hadron Production in Proton- and Pion-Nucleus Interactions V: Lead Nuclei and Beam Momenta from +/-3 Gev/c to +/-15 Gev/c

The HARP collaboration Bolshakova, A. ; Boyko, I. ; Chelkov, G. ; et al.
Eur.Phys.J.C 66 (2010) 57-117, 2010.
Inspire Record 838772 DOI 10.17182/hepdata.53811

We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% nuclear interaction length thick stationary lead target, of proton and pion beams with momentum from +/-3 GeV/c to +/-15 GeV/c. Results are given for secondary particles with production angles 20 to 125 degrees. Cross-sections on lead nuclei are compared with cross-sections on beryllium, copper, and tantalum nuclei.

360 data tables

Double-differential inclusive cross section for P production in P PB interactions at beam momentum 3 GeV/c in the polar angle range 20 to 30 degrees.

Double-differential inclusive cross section for P production in P PB interactions at beam momentum 3 GeV/c in the polar angle range 30 to 40 degrees.

Double-differential inclusive cross section for P production in P PB interactions at beam momentum 3 GeV/c in the polar angle range 40 to 50 degrees.

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PARTICLE PRODUCTION IN THE TARGET RAPIDITY REGION FROM HADRON NUCLEUS REACTIONS AT SEVERAL GEV

Shibata, T.A. ; Nakai, K. ; Enyo, H. ; et al.
Nucl.Phys.A 408 (1983) 525-558, 1983.
Inspire Record 197272 DOI 10.17182/hepdata.8739

Highly inelastic processes in hadron-nucleus reactions at several GeV have been studied by measuring multi-particle emission in the target-rapidity region. Events with no leading particle(s) but with high multiplicities were observed up to 4 GeV. Proton spectra from such events were well reproduced with a single-moving-source model, which implied possible formation of a local source. The number of nucleons involved in the source was estimated to be (3–5)A 1 3 from the source velocity and the multiplicity of emitted protons. In those processes the incident energy flux seemed to be deposited totally or mostly (>62;75%) in the target nucleus to form the local source. The cross sections for the process were about 30% of the geometrical cross sections, with little dependence on incident energies up to 4 GeV and no dependence on projectiles (pions or protons). The E 0 parameter in the invariant-cross-section formula E d 3 σ /d p 3 = A exp (− E / E 0 ) for protons from the source increases with incident energy from 1 to 4 GeV/ c , but seems to saturate above 10 GeV at a value E 0 = 60–70 MeV. Three components in the emitted nucleon spectra were observed which would correspond to three stages of the reaction process: primary, pre-equilibrium and equilibrium.

72 data tables

BEAM ERROR D(P)/P = 0.300 PCT. X ERROR D(EKIN)/EKIN = 8.00 PCT.

BEAM ERROR D(P)/P = 0.300 PCT. X ERROR D(EKIN)/EKIN = 8.00 PCT.

BEAM ERROR D(P)/P = 0.300 PCT. X ERROR D(EKIN)/EKIN = 8.00 PCT.

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PROTON YIELDS AT AN ANGLE OF 132-DEGREES ON LI-6, C, CU AND PB NUCLEI IN REACTIONS PI+- A ---> P X AT A PI MESON MOMENTUM OF 1.5-GEV/C. (IN RUSSIAN)

Buklei, A.E. ; Burgov, N.A. ; Vlasov, M.K. ; et al.
Moscow Inst. Theor. Exp. Phys. Gkae - ITEF-84-056 (84,REC.JUN.) 12p, 1984.
Inspire Record 205430 DOI 10.17182/hepdata.40145

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2 data tables

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PROTON PRODUCTION CROSS-SECTION WITH 70-MEV - 230-MEV ENERGIES IN P A ---> P X REACTIONS FOR 1-GEV/C - 9-GEV/C, PI+ A ---> P X FOR FOR 1-GEV/C - 6-GEV/C AND PI- A ---> P X FOR 1.4-GEV/C AND 5-GEV/C. (IN RUSSIAN)

Bayukov, Yu.D. ; Gavrilov, V.B. ; Goryainov, N.A. ; et al.
Moscow Inst. Theor. Exp. Phys. Gkae - ITEF-83-148 (83,REC.NOV.) 99p, 1983.
Inspire Record 196222 DOI 10.17182/hepdata.9995

None

131 data tables

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INVESTIGATIONS OF THE ANGULAR DISTRIBUTIONS OF PROTONS EMITTED FROM NUCLEI IN pi+, pi-. INTERACTIONS AT MOMENTA OF 1.2-GeV/c TO 7.0-GeV/c

Barkov, B.P. ; Bayukov, Yu.D. ; Bobchenko, B.M. ; et al.
ITEP-58-1980, 1980.
Inspire Record 154421 DOI 10.17182/hepdata.40307

None

6 data tables

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NEUTRON TO PROTON RATIOS IN p A AND pi+- A INTERACTIONS

Bayukov, Yu.D. ; Degtyarenko, P.V. ; Druzhinin, B.L. ; et al.
Sov.J.Nucl.Phys. 41 (1985) 101-104, 1985.
Inspire Record 196610 DOI 10.17182/hepdata.40188

None

16 data tables

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