Short range correlations and the EMC effect

This Letter shows quantitatively that the magnitude of the EMC effect measured in electron deep inelastic scattering at intermediate x(B), 0.35≤x(B)≤0.7, is linearly related to the short range correlation (SRC) scale factor obtained from electron inclusive scattering at x(B)≥1. The observed phenomen...

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Bibliographic Details
Published in:Physical review letters 2011-02, Vol.106 (5), p.052301-052301, Article 052301
Main Authors: Weinstein, L B, Piasetzky, E, Higinbotham, D W, Gomez, J, Hen, O, Shneor, R
Format: Article
Language:English
Subjects:
CROSS SECTIONS
DEEP INELASTIC SCATTERING
DEUTERONS
ELECTRONS
EMC EFFECT
NEUTRONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROTONS
SCATTERING
STRUCTURE FUNCTIONS
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Summary:This Letter shows quantitatively that the magnitude of the EMC effect measured in electron deep inelastic scattering at intermediate x(B), 0.35≤x(B)≤0.7, is linearly related to the short range correlation (SRC) scale factor obtained from electron inclusive scattering at x(B)≥1. The observed phenomenological relationship is used to extract the ratio of the deuteron to the free pn pair cross sections and F(2)(n)/F(2)(p), the ratio of the free neutron to free proton structure functions. We speculate that the observed correlation is because both the EMC effect and SRC are dominated by the high virtuality (high momentum) nucleons in the nucleus.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.106.052301