[Jlabsa_gs] **Today** Pizza Seminar - Wednesday, March 18, 2015 - A Message From Hari Areti
Jodi Patient
patient at jlab.org
Wed Mar 18 10:51:46 EDT 2015
Thank you to all of those who RSVP'd. See you at noon today.
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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