Nuclear structure functions in the large-x large-Q{sup 2} kinematic region in neutrino deep inelastic scattering

Journal Article · Wed Mar 01 04:00:00 EST 2000 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.61.052003· OSTI ID:20215914

Vakili, M ^[1]; Arroyo, C G ^[2]; Auchincloss, P ^[3]; Barbaro, L de ^[4]; Barbaro, P de ^[3]; Bazarko, A O ^[2]; Bernstein, R H ^[5]; Bodek, A ^[3]; Bolton, T ^[6]; Budd, H ^[3]

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1. University of Cincinnati, Cincinnati, Ohio 45221 (United States)
2. Columbia University, New York, New York 10027 (United States)
3. University of Rochester, Rochester, New York 14627 (United States)
4. Northwestern University, Evanston, Illinois 60208 (United States)
5. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
6. Kansas State University, Manhattan, Kansas 66506 (United States)

Data from the CCFR E770 neutrino deep inelastic scattering experiment at Fermilab contain events with a large Bjorken x (x>0.7) and high momentum transfer [Q{sup 2}>50 (GeV/c){sup 2}]. A comparison of the data with a model based on no nuclear effects at large x shows a significant excess of events in the data. The addition of Fermi gas motion of the nucleons in the nucleus to the model does not explain the excess. Adding a higher momentum tail due to the formation of ''quasi-deuterons'' makes some improvement. An exponentially falling F{sub 2}{proportional_to}e{sup -s(x-x{sub 0})} at large x, predicted by ''multi-quark clusters'' and ''few-nucleon correlations,'' can describe the data. A value of s=8.3{+-}0.7(stat){+-}0.7(syst) yields the best agreement with the data. (c) 2000 The American Physical Society.

• OSTI ID: 20215914
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 61; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DEEP INELASTIC SCATTERING
EXPERIMENTAL DATA
FERMILAB
NEUTRINO REACTIONS
NUCLEAR STRUCTURE
STRUCTURE FUNCTIONS