Short Range Correlations and the EMC Effect

2010/09/30 by L. B. Weinstein, E. Piasetzky, D. W. Higinbotham +3 · 1 citation
Physics and Astronomy · #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevlett.106.052301

published as Phys.Rev.Lett.106:052301,2011 · 5 pages, 2 figures, minor changes for PRL acceptance, reference 12 corrected

arxiv created 2011/01/18 · arxiv updated 2011/02/09

Abstract

This paper shows quantitatively that the magnitude of the EMC effect measured in electron deep inelastic scattering (DIS) at intermediate x_B, 0.35≤ x_B≤ 0.7, is linearly related to the Short Range Correlation (SRC) scaling 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, the DIS cross section for a free neutron, and F₂ⁿ/F₂^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.

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