English

New data strengthen the connection between Short Range Correlations and the EMC effect

Nuclear Experiment 2015-06-04 v3 High Energy Physics - Experiment

Abstract

Recently published measurements of the two nucleon short range correlation (NNNN-SRC) scaling factors, a2(A/d)a_2(A/d), strengthen the previously observed correlation between the magnitude of the EMC effect measured in electron deep inelastic scattering at 0.35xB0.70.35\le x_B\le 0.7 and the SRC scaling factor measured at xB1x_B \ge 1. The new results have improved precision and include previously unmeasured nuclei. The measurements of a2(A/d)a_2(A/d) for 9^9Be and 197^{197}Au agree with published predictions based on the EMC-SRC correlation. This paper examines the effects of the new data and of different corrections to the data on the slope and quality of the EMC-SRC correlation, the size of the extracted deuteron IMC effect, and the free neutron structure function. The results show that the linear EMC-SRC correlation is robust and that the slope of the correlation is insensitive to most combinations of corrections examined in this work. This strengthens the interpretation that both NNNN-SRC and the EMC effect are related to high momentum nucleons in the nucleus.

Keywords

Cite

@article{arxiv.1202.3452,
  title  = {New data strengthen the connection between Short Range Correlations and the EMC effect},
  author = {O. Hen and E. Piasetzky and L. B. Weinstein},
  journal= {arXiv preprint arXiv:1202.3452},
  year   = {2015}
}

Comments

4 pages, 1 figure. v3: minor changes to respond to PRC referee comments. v2: Minor errors in tabulated data corrected. No change to text or conclusions

R2 v1 2026-06-21T20:20:05.848Z