Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1
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 x>1, which is sensitive to short-range contributions to the nuclear wave function, and in deep inelastic scattering corresponds...
| Main Authors: | , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/64995 |
| _version_ | 1826191770452492288 |
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| author | Clasie, Benjamin Michael Patrick Seely, Jason |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Clasie, Benjamin Michael Patrick Seely, Jason |
| author_sort | Clasie, Benjamin Michael Patrick |
| collection | MIT |
| description | 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 x>1, 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 “superfast” quarks probed at x>1. The falloff at x>1 is noticeably stronger in 2H ]superscript 2 H] and 3He [superscript 3 He], but nearly identical for all heavier nuclei. |
| first_indexed | 2024-09-23T09:01:01Z |
| format | Article |
| id | mit-1721.1/64995 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:01:01Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/649952022-09-26T09:50:45Z Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1 Clasie, Benjamin Michael Patrick Seely, Jason Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Clasie, Benjamin Michael Patrick Clasie, Benjamin Michael Patrick Seely, Jason 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 x>1, 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 “superfast” quarks probed at x>1. The falloff at x>1 is noticeably stronger in 2H ]superscript 2 H] and 3He [superscript 3 He], but nearly identical for all heavier nuclei. United States. Dept. of Energy (Contract No. DE-FG02-96ER40950) United States. Dept. of Energy (Contract no. DE-AC05-06OR23177) United States. Dept. of Energy (Contract no. DE-AC02-06CH11357) National Science Foundation (U.S.) (Grant No. NSF-0244899) National Research Foundation (South Africa) 2011-07-29T21:05:23Z 2011-07-29T21:05:23Z 2010-11 2010-08 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/64995 Fomin, N. et al. “Scaling of the F_{2} [F subscript 2] Structure Function in Nuclei and Quark Distributions at X > 1.” Physical Review Letters 105.21 (2010) : n. pag. © 2010 The American Physical Society en_US http://dx.doi.org/10.1103/PhysRevLett.105.212502 Physical review letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Clasie, Benjamin Michael Patrick Seely, Jason Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1 |
| title | Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1 |
| title_full | Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1 |
| title_fullStr | Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1 |
| title_full_unstemmed | Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1 |
| title_short | Scaling of the F-2 [F subscript 2] Structure Function in Nuclei and Quark Distributions at x > 1 |
| title_sort | scaling of the f 2 f subscript 2 structure function in nuclei and quark distributions at x 1 |
| url | http://hdl.handle.net/1721.1/64995 |
| work_keys_str_mv | AT clasiebenjaminmichaelpatrick scalingofthef2fsubscript2structurefunctioninnucleiandquarkdistributionsatx1 AT seelyjason scalingofthef2fsubscript2structurefunctioninnucleiandquarkdistributionsatx1 |