1202.3452 (O. Hen et al.)

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

O. Hen, E. Piasetzky, L. B. Weinstein

Recently published measurements of the two nucleon short range correlation
($NN$-SRC) scaling factors, $a_2(A/d)$, strengthen the previously observed
correlation between the magnitude of the EMC effect measured in electron deep
inelastic scattering at $0.35\le x_B\le 0.7$ and the SRC scaling factor
measured at $x_B \ge 1$. The new results have improved precision and include
previously unmeasured nuclei. The measurements of $a_2(A/d)$ for $^9$Be and
$^{197}$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. The inclusion of new nuclei shows that while neither the EMC
effect nor the SRC scaling probability scale with the nuclear density, they do
scale with each other, strengthening the interpretation that both $NN$-SRC and
the EMC effect are related to high momentum nucleons in the nucleus.

View original: http://arxiv.org/abs/1202.3452