Relativistic description of 3He(e,e'p)2H

The relativistic distorted-wave impulse approximation is used to describe the 3He(e, e′ p)2H process. We describe the 3He nucleus within the adiabatic hyperspherical expansion method with realistic nucleon-nucleon interactions. The overlap between the 3He and the deuteron wave functions can be accurately computed from a three-body calculation. The nucleons are described by solutions of the Dirac equation with scalar and vector (S-V) potentials. The wave function of the outgoing proton is obtained by solving the Dirac equation with a S-V optical potential fitted to elastic proton scattering data on the residual nucleus. Within this theoretical framework, we compute the cross section of the reaction and other observables like the transverse-longitudinal asymmetry, and compare them with the available experimental data measured at JLab. © 2010 Springer-Verlag.
This work was partly supported by funds provided by DGI of MEC (Spain) under Contracts No. FPA2007- 62216, FIS2008-01301 and the Spanish Consolider-Ingenio programme CPAN (Programme No. CSD2007-00042). R.A.R. and J.R.V. acknowledge support by Ministerio de Ciencia e Innovación (Spain) under the >Juan de la Cierva> programme