APS » PROLA » Phys. Rev. Lett. » Volume 91 » Issue 5

Phys. Rev. Lett. 91, 052301 (2003) [5 pages]

Polarization Transfer in the 4He(e→,e′p→)3H Reaction up to Q2=2.6   (GeV/c)2
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S. Strauch et al.
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Featured in Physics News Update Received 6 November 2002; revised 5 May 2003; published 29 July 2003

We have measured the proton recoil polarization in the 4He(e→ ,e′p→)4H reaction at Q2=0.5, 1.0, 1.6, and 2.6   (GeV/c)2. The measured ratio of polarization transfer coefficients differs from a fully relativistic calculation, favoring the inclusion of a medium modification of the proton form factors predicted by a quark-meson coupling model. In addition, the measured induced polarizations agree reasonably well with the fully relativistic calculation indicating that the treatment of final-state interactions is under control.


©2003 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v91/e052301
DOI: 10.1103/PhysRevLett.91.052301
PACS: 13.40.Gp, 13.88.+e, 25.30.Dh, 27.10.+h

* Present address: Department of Physics, The George Washington University, Washington, D.C. 20052, USA.

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