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Prompt muon-neutrino production in a 400-GeV proton beam-dump experiment

Journal Article · · Phys. Rev. Lett.; (United States)
The prompt ..nu../sub ..mu../ and nu-bar/sub ..mu../ flux produced by 400-GeV protons has been measured with a detector located 56 m from a tungsten target. The cross section for the hadronic production of charm is determined to be 27 +- 4 +- 5 ..mu..b/nucleon subject to the following assumptions: DD-bar production only; A/sup 1/ variation of cross section; and a parametrization of the D-production cross section which is (1-x)/sup 4/ exp(-2m/sub perpendicular/). The ratio of prompt nu-bar/sub ..mu../ flux to prompt ..nu../sub ..mu../ is measured to be 1.12 +- 0.24 +- 0.17, consistent with predominantly DD-bar production.
Research Organization:
University of Michigan, Ann Arbor, Michigan 48109
OSTI ID:
5666558
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 51:9; ISSN PRLTA
Country of Publication:
United States
Language:
English