Measurements of the A-dependence of deep-inelastic electron scattering from nuclei

Conference · Tue May 01 04:00:00 EDT 1984

OSTI ID:6759934

Arnold, R G; Bosted, P E; Chang, C C; Gomez, J; Katramatou, A T; Petratos, G G; Rahbar, A A; Rock, S E; Sill, A F; Szalata, Z M

The deep inelastic electron scattering cross sections per nucleon sigma/sub A/ for d, He, Be, C, Al, Ca, Fe, Ag, and Au were measured in kinematic range 0.09 less than or equal to x less than or equal to 0.9 and 2 less than or equal to Q/sup 2/ less than or equal to 15 (GeV/c)/sup 2/ using electrons with energies ranging from 8 to 24.5 GeV. The ratio sigma/sub A//sigma/sub d/ is consistent with unity in the range 0.1 < x < 0.3. For 0.3 < x < 0.8, the ratio decreases logarithmically with atomic weight A, or linearly with average nuclear density. No Q/sup 2/ dependence in the ratio was observed over the kinematic range of the data. This has been interpreted as evidence for a change in the quark momentum distribution in the nucleus due to the presence of 6 quark clusters or a larger nucleon bag size. 13 references.

• Research Organization: Stanford Linear Accelerator Center, CA (USA); American Univ., Washington, DC; Rochester Univ., NY (USA); Bonn Univ. (Germany, F.R.); CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6759934
• Report Number(s): SLAC-PUB-3348; CONF-840757-1; ON: DE84013865
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH METALS
ALUMINIUM 27 TARGET
BERYLLIUM 9 TARGET
CALCIUM
CARBON
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DEEP INELASTIC SCATTERING
DEUTERIUM TARGET
DIFFERENTIAL CROSS SECTIONS
ELECTRON REACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
FLUIDS
FUNCTIONS
GASES
GEV RANGE
GEV RANGE 01-10
GEV RANGE 10-100
GOLD 197 TARGET
HELIUM
INELASTIC SCATTERING
INFORMATION
INTERACTIONS
IRON
LEPTON REACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MASS NUMBER
METALS
NONMETALS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
POSTULATED PARTICLES
QUARKS
RARE GASES
SCATTERING
SILVER
STRUCTURE FUNCTIONS
TARGETS
TRANSITION ELEMENTS