Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np
Abstract
The electron-target-asymmetries A_parallel and A_perpendicular with target spin parallel and perpendicular to the momentum transfer q were measured for both the two-- and three-body breakup of 3He in the 3He(e,e'p)-reaction. Polarized electrons were scattered off polarized 3He in the quasielastic regime in parallel kinematics with the scattered electron and the knocked-out proton detected using the Three-Spectrometer-Facility at MAMI. The results are compared to Faddeev calculations which take into account Final State Interactions as well as Meson Exchange Currents. The experiment confirms the prediction of a large effect of Final State Interactions in the asymmetry of the three-body breakup and of an almost negligible one for the two-body breakup.
Keywords
Cite
@article{arxiv.nucl-ex/0505012,
title = {Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np},
author = {P. Achenbach and D. Baumann and R. Boehm and B. Boillat and D. Bosnar and C. Carasco and M. Ding and M. O. Distler and J. Friedrich and W. Gloeckle and J. Golak and Y. Goussev and P. Grabmayr and W. Heil and A. Huegli and P. Jennewein and G. Jover Manas and J. Jourdan and H. Kamada and T. Klechneva and B. Krusche and K. W. Krygier and J. G. Llongo and M. Lloyd and M. Makek and H. Merkel and C. Micheli and U. Mueller and A. Nogga and R. Neuhausen and Ch. Normand and L. Nungesser and A. Ott and E. Otten and F. Parpan and R. Perez Benito and M. Potokar and D. Rohe and D. Rudersdorf and J. Schmiedeskamp and M. Seimetz and I. Sick and S. Sirca and R. Skibinski and S. Stave and G. Testa and R. Trojer and Th. Walcher and M. Weis and H. Witala and H. Woehrle},
journal= {arXiv preprint arXiv:nucl-ex/0505012},
year = {2014}
}
Comments
accepted by Eur. Phys. Journal A