原子核中F_2结构函数的标度性与x>1处的夸克分布
核实验
2010-12-03 v1
摘要
我们展示了在Jefferson Lab Hall C对一系列原子核进行电子散射的新数据。对于重核，我们观察到处截面的快速下降，这敏感于核波函数的短程贡献，并在深度非弹性散射中对应于探测极高动量夸克。该结果与更高能量μ子散射测量一致，但与中微子散射测量形成鲜明对比，后者表明在处探测的“超快”夸克分布有显著增强。H和He中处的下降明显更强，但所有较重原子核几乎相同。
引用
@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}
}
备注
5 pages, 4 figures, to be submitted to physical review