Actions for Medium modifications from 4He(e,e'p)3H [electronic resource].

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Medium modifications from 4He(e,e'p)3H [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
page(s) 055,203 : digital, PDF file
Additional Creators
Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Polarization transfer in quasi-elastic nucleon knockout is sensitive to the properties of the nucleon in the nuclear medium, including possible modification of the nucleon form factor and/or spinor. In our recently completed experiment E03-104 at Jefferson Lab we measured the proton recoil polarization in the 4He(e,e'p)3H reaction at a Q^2 of 0.8 (GeV/c)^2 and 1.3 (GeV/c)^2 with unprecedented precision. These data complement earlier data between 0.4 and 2.6 (GeV/c)^2 from both Mainz and Jefferson Lab. The measured ratio of polarization-transfer coefficients differs from a fully relativistic calculation, favoring either the inclusion of a medium modification of the proton form factors predicted by a quark-meson coupling model or strong charge-exchange final-state interactions. The measured induced polarizations agree well with the fully relativistic calculation and indicate that these strong final-state interactions may not be applicable.
Report Numbers
E 1.99:jlab-phy-08-832
E 1.99: arxiv:0807.2252
E 1.99: doe/or/23177-0457
doe/or/23177-0457
arxiv:0807.2252
jlab-phy-08-832
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Note
Published through SciTech Connect.
11/01/2008.
"jlab-phy-08-832"
" arxiv:0807.2252"
" doe/or/23177-0457"
Invited Talk compiled for Sixth International Conference on Perspectives in Hadronic Physics.
Strauch, Steffen; Paolone, Michael; Malace, Simona.
Funding Information
AC05-060R23177
View MARC record | catkey: 14707718