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Nuclear Physics Seminars

ics Nuclear
Thursday, March 28, 2013
3:30 PM
Physics Building, Room 313
Note special date.
Note special room.
Michael Mayer [Host: Donal Day]
Old Dominion University
"Beam-Target Double Spin Asymmetry in d(e, e′p)n"
ABSTRACT:
Using the CLAS detector at Jefferson Lab, double spin asymmetries (A||) for quasi-elastic electron scattering off the deuteron have been measured at several beam energies. The data were collected during the EG1 experiment, which scattered longitudinally polarized electrons with energies from 1.6 to 5.8 GeV off a longitudinally polarized cryogenic ND3 target. The double spin asymmetries were measured as a function of photon virtuality Q2 (0.13−3.17 (GeV/c)2), missing momentum (0.0−0.5 GeV/c), and the angle between the (inferred) “spectator” neutron and the momentum transfer direction (θnq). The results from EG1b are compared with a recent model that includes final state interactions using a complete parameterization of nucleon-nucleon scattering. I will discuss the results for the double spin asymmetry and compare them to this model as well as a simplified model using the plane wave impulse approximation.

To add a speaker, send an email to phys-speakers@Virginia.EDU. Please include the seminar type (e.g. Nuclear Physics Seminars), date, name of the speaker, title of talk, and an abstract (if available).