Two-photon exchange and elastic scattering of longitudinally polarized electrons on polarized deuterons

作者：Kobushkin Alexander P^*; Krivenko Emetov Yaroslav D; Dubnicka Stanislav; Dubnickova Anna Z

来源：Physical Review C, 2011, 84(5): 054007.

DOI：10.1103/PhysRevC.84.054007

Structure functions and polarization observables in elastic scattering of longitudinally polarized electrons on polarized deuterons are considered within the approximation of one-photon plus two-photon exchange. It is shown that the contribution of two-photon exchange to the generalized deuteron structure function A is of the order of few percent, while the contribution to the generalized structure function B is of the order of 10%-20%. We have found that the components T(20) and T(21) of the tensor analyzing power are mainly determined by one-photon exchange but that T(22) is mainly determined by interference between one-photon exchange and two-photon exchange. We have also considered the polarization observables T(11), C(21), and C(22), which are proportional to the imaginary part of the reaction amplitude and vanish in the framework of one-photon exchange.

• 出版日期2011-11-28