New Measurements of the European Muon Collaboration Effect in Very Light Nuclei
| Autor: | L. Yuan, M. Kotulla, P. E. Reimer, Karl Slifer, R. Asaturyan, M. E. Christy, L. G. Tang, I. Niculescu, Y. Okayasu, Masroor H. S. Bukhari, V. M. Rodriguez, H. Nomura, V. Tadevosyan, John Arrington, N. Kalantarians, D. H. Potterveld, C. Lee, A. Bruell, G. R. Smith, A. Lung, E. Schulte, Fatiha Benmokhtar, Dipangkar Dutta, V. Tvaskis, Cynthia Keppel, S. Malace, Colin Hill, T. Navasardyan, A. Daniel, J. A. Dunne, R. J. Holt, E. Segbefia, P. Bosted, O. Rondon, Rolf Ent, V. A. Punjabi, S. Tajima, B. Boillat, Donal Day, Haiyan Gao, P. Solvignon, J. Seely, M. M. Dalton, Benjamin Clasie, H. Fenker, C. F. Perdrisat, J. Roche, F.R. Wesselmann, S. A. Wood, B. W. Filippone, Xin Qian, T. Mertens, D. G. Meekins, D. Gaskell, J. Jourdan, M. K. Jones, L. El Fassi, W. U. Boeglin, G. Testa, G. Niculescu, Simon Henry Connell, T. Horn, R. Trojer, W. F. Vulcan, H. Mkrtchyan, X. Zheng, D. Kiselev, Nadia Fomin, E. V. Hungerford, A. K. Opper, J. Wright |
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| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Physical Review Letters. 103 |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from {sup 2}H, {sup 3}He, {sup 4}He, {sup 9}Be and {sup 12}C for 0.3 < x < 0.9, Q{sup 2} {approx} 3-6 GeV{sup 2}. These data represent the first measurement of the EMC effect for {sup 3}He at large x and a significant improvement for {sup 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. |
| Databáze: | OpenAIRE |
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