New Measurements of the European Muon Collaboration Effect in Very Light Nuclei
New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from [superscript 2]H, [superscript 3]He, [superscript 4]He, [superscript 9]Be and [superscript 12]C for 0.3<x<0.9, Q[superscript 2]≈3–6 GeV[superscript 2]. These data represent the first measurement...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/52493 |
| Summary: | New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from [superscript 2]H, [superscript 3]He, [superscript 4]He, [superscript 9]Be and [superscript 12]C for 0.3<x<0.9, Q[superscript 2]≈3–6 GeV[superscript 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. |
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