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EMC and Polarized EMC Effects in Nuclei

I. C. Cloet·W. Bentz·A. W. Thomas
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Abstract

We determine nuclear structure functions and quark distributions for $^7$Li, $^{11}$B, $^{15}$N and $^{27}$Al. For the nucleon bound state we solve the covariant quark-diquark equations in a confining Nambu--Jona-Lasinio model, which yields excellent results for the free nucleon structure functions. The nucleus is described using a relativistic shell model, including mean scalar and vector fields that couple to the quarks in the nucleon. The nuclear structure functions are then obtained as a convolution of the structure function of the bound nucleon with the light-cone nucleon distributions. We find that we are readily able to reproduce the EMC effect in finite nuclei and confirm earlier nuclear matter studies that found a large polarized EMC effect.

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I. C. Cloet, W. Bentz, A. W. Thomas. 2006-05-24. EMC and Polarized EMC Effects in Nuclei. https://doi.org/10.1016/j.physletb.2006.08.076

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