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We present results on the production of hadrons in collisions of 400-GeV/c protons with beryllium, copper, and tungsten nuclei. The data cover the region from 5.6 to 8.0 GeV/c in the transverse momentum of the final-state hadron and from 73/sup 0/ to 102/sup 0/ in the proton-nucleon center-of-momentum frame production angle theta/sup */. The restriction of the data to values of x/sub T/ (x/sub T/ = 2p/sub T// ..sqrt..s ) greater than 0.4 enriches the sample with hard collisions of valence quarks. Asymmetries about theta/sup */ = 90/sup 0/ reflect the presence of neutrons in the target nuclei. The variation of the atomic-weight dependence parameter ..cap alpha.. with production angle is discussed in the context of the phenomenology of nucleonic structure within nuclei. We also extrapolate our measurements to a ''deuteron'' target to minimize nuclear effects and compare the result to QCD calculations.
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| Authors: |
Crittenden, J.A.;
Hsiung, Y.B.;
Kaplan, a.D.M.;
Hubbard, J.R.;
Mangeot, P.;
Peisert, A.;
Charpak, G.;
Sauli, F.;
Brown, C.N.;
Childress, S.;
and others
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| Publication Date: | 1986 Nov 01 |
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| OSTI Identifier: | 7244218 |
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| Resource Type: | Journal Article |
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| Resource Relation: | Journal Name: Phys. Rev. D; (United States); Journal Volume: 34:9 |
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| Research Org: | Columbia University, New York, New York 10027 |
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| Country of Publication: | United States |
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| Language: | English |
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| Format: | Size: Pages: 2584-2600 |
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| Other Number(s): | Journal ID: CODEN: PRVDA |
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| Subject: | 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BERYLLIUM 9 TARGET; PROTON-NUCLEON INTERACTIONS; COPPER; HADRONS; PARTICLE PRODUCTION; INCLUSIVE INTERACTIONS; TUNGSTEN; ANGULAR DISTRIBUTION; CROSS SECTIONS; FRAGMENTATION; GEV RANGE 100-1000; PARTICLE STRUCTURE; PROTON REACTIONS; QUANTUM CHROMODYNAMICS; TRANSVERSE MOMENTUM; BARYON REACTIONS; BARYON-BARYON INTERACTIONS; CHARGED-PARTICLE REACTIONS; DISTRIBUTION; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FIELD THEORIES; GEV RANGE; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; INTERACTIONS; LINEAR MOMENTUM; METALS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY; TARGETS; TRANSITION ELEMENTS |
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| Update Date: | 2009 Dec 17 |
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