[Jlabsa_gs] **Reminder**Pizza Seminar - Wednesday, March 18, 2015 - A Message From Hari Areti

Jodi Patient patient at jlab.org
Mon Mar 16 10:24:24 EDT 2015


Jefferson Lab's Graduate Student and Post-Doc Association Wiki:
  https://gspda.jlab.org/wiki/index.php/Main_Page

         Please RSVP to:  patient at jlab.org by COB on March 16, 2015

                         Wednesday, March 18, 2015

                                ***F113***

                               12:00-1:00 pm

                            Narbe Kalantarians

                            Hampton University


                            
"(Semi) Inclusive Deuteron Data Fitting and Extraction of Neutron Structure Functions" 
                                  


Abstract: Structure functions parameterize fundamental information about the internal 
structure of the nucleon, and in the deep-inelastic region are given in terms of the 
longitudinal momentum distributions of the nucleons' quark and gluon constituents. 
Compared to the copious amount of proton structure function data, there is considerably 
less for the neutron, which is mainly derived from deuteron data. Extracting neutron 
structure functions from the deuteron results in ambiguities from the necessary nuclear 
corrections.  Such ambiguities can be confronted using free neutron and proton and inclusive 
deuteron data. The Barley Off-shell Neutron Structure experiment (BONuS) ran in experimental
Hall B at Jefferson Lab in 2005 and provided a virtually free neutron target for the first
time. Extraction of the free neutron structure functions has been performed via global fits
to both the BONuS and deuteron inclusive data, utilizing an existing fit to the free proton,
within the framework of the weak binding approximation and utilizing various nuclear
potentials. We will report on the results of this fitting effort and the consistency between
neutron information from BONuS and the impulse approximation. 
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