{chi} and {xi}-scaling of the nuclear structure function at large {chi}.

Journal Article · Sun Jul 01 04:00:00 EDT 2001 · Phys. Rev. C

DOI:https://doi.org/10.1103/PhysRevC.64.014602· OSTI ID:943243

Arrington, J; Armstrong, C S; Averett, T; Baker, O K; de Bever, L

Inclusive electron scattering data are presented for {sup 2}H, C, Fe, and Au 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 {chi}{>=}1. The structure functions do not show scaling in {chi} 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 appears to 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-{chi} region at lower values of Q{sup 2} than previously believed.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; NSF; FOR
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 943243
• Report Number(s): ANL/PHY/JA-38569
• Journal Information: Phys. Rev. C, Journal Name: Phys. Rev. C Journal Issue: 1 ; Jul. 2001 Vol. 64; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

43 PARTICLE ACCELERATORS
ACCIDENTS
CEBAF ACCELERATOR
CROSS SECTIONS
DATA
DUALITY
ELECTRONS
ENERGY
INELASTIC SCATTERING
MOMENTUM TRANSFER
MOTION
NUCLEAR STRUCTURE
NUCLEONS
SCALING
SCATTERING
STRUCTURE FUNCTIONS