Inclusive hadronic production cross sections measured in proton-nucleus collisions at √s =27.4 GeV

  • J. A. Crittenden
  • , Y. B. Hsiung
  • , D. M. Kaplan
  • , J. R. Hubbard
  • , Ph Mangeot
  • , A. Peisert
  • , G. Charpak
  • , F. Sauli
  • , C. N. Brown
  • , S. Childress
  • , D. A. Finley
  • , A. S. Ito
  • , A. M. Jonckheere
  • , H. Jostlein
  • , L. M. Lederman
  • , R. Orava
  • , S. R. Smith
  • , K. Sugano
  • , K. Ueno
  • , A. Maki
  • Y. Sakai, Y. Hemmi, K. Miyake, T. Nakamura, M. R. Adams, H. D. Glass, D. E. Jaffe, J. Kirz, R. L. McCarthy, R. Gray, R. E. Plaag, J. E. Rothberg, J. P. Rutherfoord, K. K. Young

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Pages (from-to)2584-2600
Number of pages17
JournalPhysical Review D
Volume34
Issue number9
DOIs
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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