%0 Journal Article
%T A precise extraction of the induced polarization in the 4He(e,e'p)3H reaction
%A S. P. Malace
%A M. Paolone
%A S. Strauch
%J Physics
%D 2010
%I arXiv
%R 10.1103/PhysRevLett.106.052501
%X We measured with unprecedented precision the induced polarization Py in 4He(e,e'p)3H at Q^2 = 0.8 (GeV/c)^2 and 1.3 (GeV/c)^2. The induced polarization is indicative of reaction-mechanism effects beyond the impulse approximation. Our results are in agreement with a relativistic distorted-wave impulse approximation calculation but are over-estimated by a calculation with strong charge-exchange effects. Our data are used to constrain the strength of the spin independent charge-exchange term in the latter calculation.
%U http://arxiv.org/abs/1011.4483v2