Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/119833
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Type: Journal article
Title: Reflections on the origin of the EMC effect
Author: Thomas, A.
Citation: International Journal of Modern Physics E, 2018; 27(12):184001-1-184001-10
Publisher: World Scientific
Issue Date: 2018
ISSN: 0218-3013
1793-6608
Statement of
Responsibility: 
Anthony W. Thomas
Abstract: In the 35 years since the European Muon Collaboration announced the astonishing result that the valence structure of a nucleus was very different from that of a free nucleon, many explanations have been suggested. The first of the two most promising explanations is based upon the different effects of the strong Lorentz scalar and vector mean fields known to exist in a nucleus on the internal structure of the nucleon-like clusters which occupy shell model states. The second links the effect to the modification of the structure of nucleons involved in short-range correlations, which are far off their mass shell. We explore some of the methods which have been proposed to give complementary information on this puzzle, especially the spin-dependent EMC effect and the isovector EMC effect, both proposed by Cloët, Bentz and Thomas. It is shown that the predictions for the spin-dependent EMC effect, in particular, differ substantially within the mean-field and short-range correlation approaches. Hence, the measurement of the spin-dependent EMC effect at Jefferson Lab should give us a deeper understanding of the origin of the EMC effect and, indeed, of the structure of atomic nuclei.
Keywords: Nuclear structure; deep inelastic scattering; EMC effect; polarized EMC effect; isovector EMC effect; short-range correlations
Rights: Copyright Status Unknown
RMID: 0030098175
DOI: 10.1142/S0218301318400013
Grant ID: http://purl.org/au-research/grants/arc/CE1101004
http://purl.org/au-research/grants/arc/DP150103101
http://purl.org/au-research/grants/arc/DP180100497
Appears in Collections:Physics publications

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