Cross-Section Measurements for Charm Production by 209-GeV Muons

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.45.682· OSTI ID:1068980

Clark, A. R.; Johnson, K. J.; Kerth, L. T.; Loken, S. C.; Markiewicz, T. W.; Meyers, P. D.; Smith, W. H.; Strovink, M.; Wenzel, W. A.; Johnson, R. P.; Moore, C.; Mugge, M.; Shafer, R. E.; Gollin, G. D.; Shoemaker, F. C.; Surko, P.

Interactions of 209-GeV muons in the Multimuon Spectrometer at Fermilab have yielded 20072 dimuon final states, with (81±10)% attributed to production of charmed states decaying to muons. The cross section for diffractive charm muoproduction is 6.9{sub -1.4}{sup +1.9} nb. Extrapolated to Q{sup 2} =0, the effective cross section for 178(100)-GeV photons is 750{sup +180}{sub -130} (560{sup +200}{sub -130}) nb, too small to explain the high-energy rise in the photon-nucleon total cross section.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Computing Sciences Directorate; Physics Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1068980
• Report Number(s): LBL-10747
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 45; ISSN 0031-9007; ISSN PRLTAO
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS