New measurements of the EMC effect in very light nuclei
Nuclear Experiment
2009-12-25 v3 High Energy Physics - Phenomenology
Abstract
New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from 2H, 3He, 4He, 9Be and 12C for 0.3<x<0.9, Q^2 approximately 3-6 GeV^2. These data represent the first measurement of the EMC effect for 3He at large x and a significant improvement for 4He. 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.
Keywords
Cite
@article{arxiv.0904.4448,
title = {New measurements of the EMC effect in very light nuclei},
author = {J. Seely and A. Daniel and D. Gaskell and J. Arrington and N. Fomin and P. Solvignon and R. Asaturyan and F. Benmokhtar and W. Boeglin and B. Boillat and P. Bosted and A. Bruell and M. H. S. Bukhari and M. E. Christy and B. Clasie and S. Connell and M. Dalton and D. Day and J. Dunne and D. Dutta and L. El Fassi and R. Ent and H. Fenker and B. W. Filippone and H. Gao and C. Hill and R. J. Holt and T. Horn and E. Hungerford and M. K. Jones and J. Jourdan and N. Kalantarians and C. E. Keppel and D. Kiselev and M. Kotulla and C. Lee and A. F. Lung and S. Malace and D. G. Meekins and T. Mertens and H. Mkrtchyan and T. Navasardyan and G. Niculescu and I. Niculescu and H. Nomura and Y. Okayasu and A. K. Opper and C. Perdrisat and D. H. Potterveld and V. Punjabi and X. Qian and P. E. Reimer and J. Roche and V. M. Rodriguez and O. Rondon and E. Schulte and E. Segbefia and K. Slifer and G. R. Smith and V. Tadevosyan and S. Tajima and L. Tang and G. Testa and R. Trojer and V. Tvaskis and W. F. Vulcan and F. R. Wesselmann and S. A. Wood and J. Wright and L. Yuan and X. Zheng},
journal= {arXiv preprint arXiv:0904.4448},
year = {2009}
}
Comments
5 pages, 4 figures, submitted to PRL. fixed error in author list, minor text revision