TY - JOUR
T1 - New data strengthen the connection between short range correlations and the EMC effect
AU - Hen, O.
AU - Piasetzky, E.
AU - Weinstein, L. B.
PY - 2012/4/26
Y1 - 2012/4/26
N2 - Recently published measurements of the two-nucleon short range correlation (NN-SRC) scaling factors, a2(A/d), strengthen the previously observed correlation between the magnitude of the EMC effect measured in electron deep inelastic scattering at 0.35≤xB≤0.7 and the SRC scaling factor measured at xB≥1. The new results improve precision and include previously unmeasured nuclei. The measurements of a2(A/d) for 9Be and 197Au agree with published predictions based on the EMC-SRC correlation. This Brief Report 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 in-medium correction 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 NN-SRC and the EMC effect are related to high-momentum nucleons in the nucleus.
AB - Recently published measurements of the two-nucleon short range correlation (NN-SRC) scaling factors, a2(A/d), strengthen the previously observed correlation between the magnitude of the EMC effect measured in electron deep inelastic scattering at 0.35≤xB≤0.7 and the SRC scaling factor measured at xB≥1. The new results improve precision and include previously unmeasured nuclei. The measurements of a2(A/d) for 9Be and 197Au agree with published predictions based on the EMC-SRC correlation. This Brief Report 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 in-medium correction 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 NN-SRC and the EMC effect are related to high-momentum nucleons in the nucleus.
UR - http://www.scopus.com/inward/record.url?scp=84860652232&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.85.047301
DO - 10.1103/PhysRevC.85.047301
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AN - SCOPUS:84860652232
SN - 0556-2813
VL - 85
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 4
M1 - 047301
ER -