LIMIT ON BOTTOM-HADRON PRODUCTION BY 209-GeV MUONS

Journal Article · Mon Dec 01 04:00:00 EST 1980 · Physical Review Letters

OSTI ID:1077133

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.

Analysis of 36 952 dimuon final states produced by 209-GeV muons in a magnetized-iron calorimeter has been used to set the 90%-confidence level limit {sigma}({mu}N{yields}b{bar b}X)B(b{bar b}{yields}{mu}X)<2.9x10{sup -36} cm{sup 2} for the production of bottom hadrons. Using B=0.17, the bound on the cross section for 160-GeV photons extrapolated to Q{sup 2}=0 is {sigma}({gamma}N{yields}b{bar b}X)<4.3 nb, These limits conflict with several model calculations based on vector-meson dominance.

• 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: 1077133
• Report Number(s): LBL-11543
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS