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Nuclear structure functions and EMC effect in a relativistic deuteron

Xianghui Cao, Bheemsehan Gurjar, Vladimir A. Karmanov, Yang Li

nucl-tharXiv:2610.06483

Abstract

We investigate the longitudinal momentum distributions (LMDs) of the deuteron using a relativistic deuteron wave function derived from a realistic nucleon-nucleon (NN) interaction within the light-front framework. By convoluting the deuteron LMDs with the nucleon parton distribution functions (PDFs), we analyze the unpolarized, longitudinally polarized, and tensor-polarized structure functions of the deuteron. In addition, we also study the EMC effect in the weakly bound deuteron through the structure function ratio F2D/(F2p+F2n), which deviates from unity due to nuclear binding and Fermi motion effects.

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