C12(p,pn)C11 cross section at 300 GeV

S. B. Kaufman, M. W. Weisfield, B. D. Wilkins, D. Henderson, and E. P. Steinberg
Phys. Rev. C 13, 253 – Published 1 January 1976
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Abstract

The absolute cross section for the C12(p,pn)C11 reaction has been measured in the M2 diffracted proton beam of the Fermi National Accelerator Laboratory at an energy of 300 GeV. Proton intensities were measured with a scintillation counter telescope, and the 20.4-min C11 activity induced in 3.2-mm thick plastic scintillator targets was determined both by internal scintillation (β) counting and by annihilation radiation counting with a NaI well crystal. A correction for the formation of C11 by secondary particles was determined by measuring the activity in individual targets in a stack. The corrected value for the C12(p,pn)C11 cross section at 300 GeV is 24.6 ± 1.6 mb.

NUCLEAR REACTIONS C12(p,pn), E=300 GeV; measured absolute cross section.

  • Received 15 September 1975

DOI:https://doi.org/10.1103/PhysRevC.13.253

©1976 American Physical Society

Authors & Affiliations

S. B. Kaufman, M. W. Weisfield, B. D. Wilkins, D. Henderson, and E. P. Steinberg

  • Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439

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Vol. 13, Iss. 1 — January 1976

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