x- and xi-scaling of the Nuclear Structure Function at Large x

Journal Article · Sun Jul 01 04:00:00 EDT 2001 · Physical Review, C

OSTI ID:839035

Arrington, J; Armstrong, C S; Averett, T; Baker, O K; Bever, L de; Bochna, C W; Boeglin, W; Bray, B; Carlini, R D; Collins, G; Cothran, C; Crabb, D; Day, D; Dunne, J A; Dutta, D; Ent, R; Filippone, B W; Honegger, A; Hughes, E W; Jensen, J ; Jourdan, J; Keppel, C E; Koltenuk, D M; Lindgren, R; Lung, A; Mack, D J; McCarthy, J; McKeown, R D; Meekins, D; Mitchell, J H; Mkrtchyan, H G; Niculescu, G; Niculescu, I; Petitjean, T; Rondon, O; Sick, I; Smith, C; Terburg, B; Vulcan, W F; Wood, S A; Yan, C; Zhao, J; Zihlmann, B

Inclusive electron scattering data are presented for {sup 2}H and Fe targets at an incident electron energy of 4.045 GeV for a range of momentum transfers from Q{sup 2} = 1 to 7 (GeV/c){sup 2}. Data were taken at Jefferson Laboratory for low values of energy loss, corresponding to values of Bjorken x greater than or near 1. The structure functions do not show scaling in x in this range, where inelastic scattering is not expected to dominate the cross section. The data do show scaling, however, in the Nachtmann variable {xi}. This scaling may be the result of Bloom Gilman duality in the nucleon structure function combined with the Fermi motion of the nucleons in the nucleus. The resulting extension of scaling to larger values of {xi} opens up the possibility of accessing nuclear structure functions in the high-x region at lower values of Q{sup 2} than previously believed.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 839035
• Report Number(s): JLAB-PHY-01-95; DOE/ER/40150-3296; nucl-ex/0102004
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Vol. 64
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CEBAF ACCELERATOR
CROSS SECTIONS
DUALITY
ELECTRONS
INELASTIC SCATTERING
MOMENTUM TRANSFER
NUCLEAR STRUCTURE
NUCLEONS
SCATTERING
STRUCTURE FUNCTIONS
TARGETS