- th / 0 30 50 74 v 1 2 6 M ay 2 00 3 Meson Exchange Currents in ( e , e ′ p ) recoil polarization observables
نویسندگان
چکیده
A study of the effects of meson-exchange currents and isobar configurations in A(e, e ′ p)B reactions is presented. We use a distorted wave impulse approximation (DWIA) model where final-state interactions are treated through a phenomenological optical potential. The model includes relativistic corrections in the kinematics and in the electromagnetic one-and two-body currents. The full set of polarized response functions is analyzed, as well as the transferred polarization asymmetry. Results are presented for proton knockout from closed-shell nuclei, for moderate to high momentum transfer.
منابع مشابه
th / 0 30 50 74 v 2 3 1 Ju l 2 00 3 Meson Exchange Currents in ( e , e ′ p ) recoil polarization observables
A study of the effects of meson-exchange currents and isobar configurations in A(e, e ′ p)B reactions is presented. We use a distorted wave impulse approximation (DWIA) model where final-state interactions are treated through a phenomenological optical potential. The model includes relativistic corrections in the kinematics and in the electromagnetic one-and two-body currents. The full set of p...
متن کاملar X iv : n uc l - th / 0 50 60 74 v 1 2 4 Ju n 20 05 Polarization observables in the semiexclusive photoinduced three - body breakup of 3
Polarization observables in the semiexclusive photoinduced three-body breakup of 3 He. Abstract The photon and 3 He analyzing powers as well as spin correlation coefficients in the semiexclusive three-body photodisintegration of 3 He are investigated for incoming photon laboratory energies E γ =12, 40 and 120 MeV. The nuclear states are obtained by solving three-body Faddeev equations with the ...
متن کاملth / 0 30 20 04 v 1 3 F eb 2 00 3 Semi - relativistic meson exchange currents in ( e , e ′ ) and ( e , e ′ p ) reactions
Electron-induced one-nucleon knock-out observables are computed for moderate to high momentum transfer making use of semi-relativistic expressions for the one-body and two-body mesonexchange current matrix elements. Emphasis is placed on the semi-relativistic form of the ∆-isobar exchange current and several prescriptions for the dynamical-equivalent form of the ∆-propagator are analyzed. To th...
متن کامل- th / 0 41 20 01 v 1 1 D ec 2 00 4 Different formulations of 3 He and 3 H photodisintegration
Different momentum space Faddeev-like equations and their solutions for the radiative pd-capture and the three-nucleon photodisintegration of 3 He are presented. Applications are based on the AV18 nucleon-nucleon and the Urbana IX three nucleon forces. Meson exchange currents are included using the Siegert theorem. A very good agreement has been found in all cases indicating the reliability of ...
متن کامل- th / 0 41 10 43 v 1 1 1 N ov 2 00 4 Skewed recoil polarization in ( e , e ′ p ) reactions from polarized nuclei
The general formalism describing A(e, e ′ p)B reactions, involving polarization of the electron beam, target and ejected proton, is presented within the framework of the relativistic plane wave impulse approximation for medium and heavy nuclei. It is shown that the simultaneous measurement of the target and ejected proton polarization can provide new information which is not contained in the se...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003