Scaling of the F_2 structure function in nuclei and quark distributions at x>1
Nuclear Experiment
2010-12-03 v1
Abstract
We present new data on electron scattering from a range of nuclei taken in Hall C at Jefferson Lab. For heavy nuclei, we observe a rapid falloff in the cross section for , which is sensitive to short range contributions to the nuclear wave-function, and in deep inelastic scattering corresponds to probing extremely high momentum quarks. This result agrees with higher energy muon scattering measurements, but is in sharp contrast to neutrino scattering measurements which suggested a dramatic enhancement in the distribution of the `super-fast' quarks probed at x>1. The falloff at x>1 is noticeably stronger in ^2H and ^3He, but nearly identical for all heavier nuclei.
Keywords
Cite
@article{arxiv.1008.2713,
title = {Scaling of the F_2 structure function in nuclei and quark distributions at x>1},
author = {N. Fomin and J. Arrington and D. B. Day and D. Gaskell and A. Daniel and J. Seely 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 E. Chudakov and B. Clasie and S. H. Connell and M. M. Dalton and D. Dutta and R. Ent and L. El Fassi and H. Fenker and B. W. Filippone and K. Garrow and C. Hill and R. J. Holt and T. Horn and M. K. Jones and J. Jourdan and N. Kalantarians and C. E. Keppel and D. Kiselev and M. Kotulla and R. Lindgren and A. F. Lung and S. Malace and P. Markowitz and P. McKee and D. G. Meekins and T. Miyoshi and H. Mkrtchyan and T. Navasardyan and G. Niculescu 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 P. Solvignon and V. Tadevosyan and S. Tajima and L. Tang and G. Testa and R. Trojer and V. Tvaskis and W. F. Vulcan and C. Wasko and F. R. Wesselmann and S. A. Wood and J. Wright and X. Zheng},
journal= {arXiv preprint arXiv:1008.2713},
year = {2010}
}
Comments
5 pages, 4 figures, to be submitted to physical review