Inclusive Hadronic Production Cross-Sections Measured in Proton - Nucleus Collisions at $\\sqrt{s}$ = 27.4-GeV
Journal
Physical Review
Journal Volume
D34
Journal Issue
9
Pages
2584-2600
Date Issued
1986-04
Author(s)
Abstract
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° to 102° in the proton-nucleon center-of-momentum frame production angle theta*. The restriction of the data to values of xT (xT=2pT/ s) greater than 0.4 enriches the sample with hard collisions of valence quarks. Asymmetries about theta*=90° reflect the presence of neutrons in the target nuclei. The variation of the atomic-weight dependence parameter 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. © 1986 The American Physical Society.
Type
journal article