[Jlab-seminars] Physics Seminar Announcement

[Luci Collins]

*Physics Seminar
Wed., April 17, 2013
11:00AM
CEBAF Center AUD.
Cookies & Coffee at 10:45AM

*

*
Leonid Kaptari
INFN, Sezione di Perugia, Italy&  Bogoliubov Lab. Theor. Phys.,  JINR, Dubna, Russia*

*"NUCLEAR EFFECTS IN SEMI-INCLUSIVE QUASI-ELASTIC AND DEEP INELASTIC
SCATTERING OFF HE-3."*

The role of nuclear effects in extraction information on parton
distributions of free neutrons in quasi-elastic and
deep inelastic scattering from nuclear targets is considered with
particular attention paid to Semi-Inclusive Deep Inelastic Scattering
(SIDIS)  off polarized targets.A detailed analysis of effects of Final State Interaction
(FSI) of the produced particles with the (A-1)remnants  is performed within   kinematical
conditions  relevant to JLAB experiments.
It is argued that  at low values of  intrinsic momenta the FSI effects are negligible
small,however there are specific  kinematical regions where FSI is enhanced
and predominant. It is  shown that  in the  polarized He-3 targets these effects lead
to a partial "depolarization" of the intrinsic neutrons,  affecting,  in such a way,  the procedure of
extraction information on the Sivers and Collins asymmetries from measurements
conducted at JLAB.



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