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

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

doi:10.1103/PhysRevLett.45.682

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

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

Phys. Rev. Lett. 45, 682 – Published 1 September 1980

Abstract

Interactions of 209-GeV muons in the multimuon spectrometer at Fermilab have yielded 20 072 dimuon final states, with (81±10)% attributed to production of charmed states decaying to muons. The cross section for diffractive charm muoproduction is ${6.9}_{- 1.4}^{+ 1.9}$ nb. Extrapolated to $Q^{2} = 0$ , the effective cross section for 178- (100-) GeV photons is $750_{- 130}^{+ 180}$ ( $560_{- 120}^{+ 200}$ ) nb.