Nuclear transparency to large-angle pp elastic scattering

A. S. Carroll, D. S. Barton, G. Bunce, S. Gushue, Y. I. Makdisi, Steven Heppelmann, H. Courant, G. Fang, K. J. Heller, M. L. Marshak, M. A. Shupe, J. J. Russell

Research output: Contribution to journalArticle

171 Citations (Scopus)

Abstract

Large-angle pp elastic and quasielastic (p,2p) scattering have been simultaneously observed in hydrogen and each of several nuclear targets (Li, C, Al, Cu, Pb) at incident proton momenta of 6, 10, and 12 GeV/c. The nuclear transparency is the ratio of such a cross section in a nucleus to the free pp cross section. The transparency of aluminum increases with incident momentum by more than a factor of 2 from 6 to 9.5 GeV/c and falls significantly between 9.5 and 12 GeV/c. This occurs in a region where the free-proton nucleon-absorption cross section exhibits little energy dependence. QCD predicts an increase in transparency with energy.

Original languageEnglish (US)
Pages (from-to)1698-1701
Number of pages4
JournalPhysical Review Letters
Volume61
Issue number15
DOIs
StatePublished - Jan 1 1988

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elastic scattering
momentum
protons
cross sections
absorption cross sections
quantum chromodynamics
aluminum
nuclei
energy
hydrogen
scattering

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Carroll, A. S., Barton, D. S., Bunce, G., Gushue, S., Makdisi, Y. I., Heppelmann, S., ... Russell, J. J. (1988). Nuclear transparency to large-angle pp elastic scattering. Physical Review Letters, 61(15), 1698-1701. https://doi.org/10.1103/PhysRevLett.61.1698
Carroll, A. S. ; Barton, D. S. ; Bunce, G. ; Gushue, S. ; Makdisi, Y. I. ; Heppelmann, Steven ; Courant, H. ; Fang, G. ; Heller, K. J. ; Marshak, M. L. ; Shupe, M. A. ; Russell, J. J. / Nuclear transparency to large-angle pp elastic scattering. In: Physical Review Letters. 1988 ; Vol. 61, No. 15. pp. 1698-1701.
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Carroll, AS, Barton, DS, Bunce, G, Gushue, S, Makdisi, YI, Heppelmann, S, Courant, H, Fang, G, Heller, KJ, Marshak, ML, Shupe, MA & Russell, JJ 1988, 'Nuclear transparency to large-angle pp elastic scattering', Physical Review Letters, vol. 61, no. 15, pp. 1698-1701. https://doi.org/10.1103/PhysRevLett.61.1698

Nuclear transparency to large-angle pp elastic scattering. / Carroll, A. S.; Barton, D. S.; Bunce, G.; Gushue, S.; Makdisi, Y. I.; Heppelmann, Steven; Courant, H.; Fang, G.; Heller, K. J.; Marshak, M. L.; Shupe, M. A.; Russell, J. J.

In: Physical Review Letters, Vol. 61, No. 15, 01.01.1988, p. 1698-1701.

Research output: Contribution to journalArticle

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AU - Carroll, A. S.

AU - Barton, D. S.

AU - Bunce, G.

AU - Gushue, S.

AU - Makdisi, Y. I.

AU - Heppelmann, Steven

AU - Courant, H.

AU - Fang, G.

AU - Heller, K. J.

AU - Marshak, M. L.

AU - Shupe, M. A.

AU - Russell, J. J.

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N2 - Large-angle pp elastic and quasielastic (p,2p) scattering have been simultaneously observed in hydrogen and each of several nuclear targets (Li, C, Al, Cu, Pb) at incident proton momenta of 6, 10, and 12 GeV/c. The nuclear transparency is the ratio of such a cross section in a nucleus to the free pp cross section. The transparency of aluminum increases with incident momentum by more than a factor of 2 from 6 to 9.5 GeV/c and falls significantly between 9.5 and 12 GeV/c. This occurs in a region where the free-proton nucleon-absorption cross section exhibits little energy dependence. QCD predicts an increase in transparency with energy.

AB - Large-angle pp elastic and quasielastic (p,2p) scattering have been simultaneously observed in hydrogen and each of several nuclear targets (Li, C, Al, Cu, Pb) at incident proton momenta of 6, 10, and 12 GeV/c. The nuclear transparency is the ratio of such a cross section in a nucleus to the free pp cross section. The transparency of aluminum increases with incident momentum by more than a factor of 2 from 6 to 9.5 GeV/c and falls significantly between 9.5 and 12 GeV/c. This occurs in a region where the free-proton nucleon-absorption cross section exhibits little energy dependence. QCD predicts an increase in transparency with energy.

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Carroll AS, Barton DS, Bunce G, Gushue S, Makdisi YI, Heppelmann S et al. Nuclear transparency to large-angle pp elastic scattering. Physical Review Letters. 1988 Jan 1;61(15):1698-1701. https://doi.org/10.1103/PhysRevLett.61.1698