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

Journal Article · Mon Nov 03 00:00:00 EST 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.45.1465· OSTI ID:6755285

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

From a sample of 20072 dimuon final states, a first determination of the structure function F/sub 2/(cc-bar) for diffractive charmed-quark pair production by 209-GeV muons is obtained. F/sub 2/(cc-bar) has a ..nu.. dependence similar to that of the photon-gluon fusion model, but its Q/sup 2/ dependence peaks at lower Q/sup 2/. Diffractive charm production accounts for approx.1/3 of the scale noninvariance observed in muon-nucleon scattering at low values of the Bjorken x variable, x/sub B/.

• Research Organization: Physics Department and Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• DOE Contract Number: W-7405-ENG-48; E4-76-C-02-3072; E4-76-C-02-3000
• OSTI ID: 6755285
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 45:18
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARM PARTICLES
STRUCTURE FUNCTIONS
MUON-NUCLEON INTERACTIONS
INCLUSIVE INTERACTIONS
QUARKS
PAIR PRODUCTION
CROSS SECTIONS
DIFFRACTION MODELS
GEV RANGE 100-1000
GLUONS
ISOSPIN
PHOTONS
QUANTUM CHROMODYNAMICS
SCALING LAWS
SCATTERING
STATISTICAL MECHANICS
VECTOR DOMINANCE MODEL
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
FUNCTIONS
GEV RANGE
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MECHANICS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties