Published November 13, 2009 | Version public
Journal Article

New Measurements of the European Muon Collaboration Effect in Very Light Nuclei

  • 1. ROR icon Massachusetts Institute of Technology
  • 2. ROR icon University of Houston
  • 3. ROR icon Argonne National Laboratory
  • 4. ROR icon University of Virginia
  • 5. ROR icon Alikhanyan National Laboratory
  • 6. ROR icon University of Maryland, College Park
  • 7. ROR icon Florida International University
  • 8. ROR icon University of Basel
  • 9. ROR icon Hampton University
  • 10. ROR icon Mississippi State University
  • 11. ROR icon Duke University
  • 12. ROR icon California Institute of Technology
  • 13. ROR icon University of the Witwatersrand
  • 14. ROR icon James Madison University
  • 15. ROR icon Tohoku University
  • 16. ROR icon Ohio University
  • 17. ROR icon William & Mary
  • 18. ROR icon Norfolk State University

Abstract

New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from ^(2)H, ^(3)He, ^(4)He, ^(9)Be and ^(12)C for 0.3< x <0.9, Q^2 ≈ 3–6 GeV^2. These data represent the first measurement of the EMC effect for ^(3)He at large x and a significant improvement for ^(4)He. The data do not support previous A-dependent or density-dependent fits to the EMC effect and suggest that the nuclear dependence of the quark distributions may depend on the local nuclear environment.

Additional Information

© 2009 American Physical Society. Received 28 April 2009; revised 27 July 2009; published 13 November 2009. This work was supported in part by the NSF and DOE, including DOE Contract No. DE-AC02-06CH11357, DOE Contract No. DE-AC05-06OR23177 under which JSA, LLC operates JLab, and the South African National Research Foundation.

Additional details

Identifiers

Eprint ID
16924
Resolver ID
CaltechAUTHORS:20091209-112752603

Funding

NSF
Department of Energy (DOE)
DE-AC02-06CH11357
Department of Energy (DOE)
DE-AC05-06OR23177
South African National Research Foundation

Dates

Created
2009-12-10
Created from EPrint's datestamp field
Updated
2021-11-08
Created from EPrint's last_modified field