Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-01-29
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages and 3 eps figures, presented at 3rd International Workshop on Nucleon Structure at Large Bjorken x October 13-15, 2010
Scientific paper
We discuss theoretical issues related to the extraction of deep inelastic~(DIS) structure function of neutron from inclusive DIS scattering off the deuteron at large Bjorken x. Theoretical justification is given to the consideration of only $pn$ component of the deuteron wave function and consistency with both the baryonic number and light-cone momentum conservation sum rules. Next we discuss the EMC type effects and argue that in all cases relevant to the nuclear DIS reactions at large x the main issue is the medium modification of the properties of bound nucleon rather than the non-nucleonic components like pions. We give brief description of the color screening model of EMC and within this model we estimate uncertainties in the extraction of the neutron DIS structure function at large x. We emphasize also that these uncertainties are rather "model independent" since any theoretical framework accounting for the medium modification is proportional to the magnitude of the virtuality of bound nucleon which increases with an increase of x.
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