Measurement of the charm structure function and its role in scale noninvariance

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

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


From a sample of 20 072 dimuon final states, a first determination of the structure function F2(cc̄) for diffractive charmed-quark pair production by 209-GeV muons is obtained. F2(cc̄) has a ν dependence similar to that of the photon-gluon fusion model, but its Q2 dependence peaks at lower Q2. Diffractive charm production accounts for ∼13 of the scale noninvariance observed in muon-nucleon scattering at low values of the Bjorken x variable, xB.

Original languageEnglish (US)
Pages (from-to)1465-1468
Number of pages4
JournalPhysical review letters
Issue number18
StatePublished - 1980
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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