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6 results on '"Schmiedeskamp, J."'

1. Measurement of the asymmetries in 3$ \overrightarrow{\sf He}$(¯e, e′p)d and 3$ \overrightarrow{\sf He}$(¯e, e′p)np

Author

Achenbach, P., Baumann, D., Böhm, R., Boillat, B., Bosnar, D., Carasco, C., Ding, M., Distler, M., Friedrich, J., Glöckle, W., Golak, J., Goussev, Y., Grabmayr, P., Heil, W., Hügli, A., Jennewein, P., Jover Ma nas, G., Jourdan, J., Kamada, H., Klechneva, T., Krusche, B., Krygier, K., Llongo, J., Lloyd, M., Makek, M., Merkel, H., Micheli, C., Müller, U., Nogga, A., Neuhausen, R., Normand, Ch, Nungesser, L., Ott, A., Otten, E., Parpan, F., Pérez Benito, R., Potokar, M., Rohe, D., Rudersdorf, D., Schmiedeskamp, J., Seimetz, M., Sick, I., Širca, S., Skibiński, R., Stave, S., Testa, G., Trojer, R., Walcher, Th, Weis, M., Witała, H., and Wöhrle, H.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The electron target asymmetries A || and A⊥ with target spin parallel and perpendicular to the momentum transfer $\ensuremath{\boldsymbol{q}}$ were measured for both the two- and three-body breakup of 3He in the 3 $ \overrightarrow{\rm He}$ (¯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

Published
2018

2. Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np

Author

Achenbach, P., Baumann, D., Boehm, R., Boillat, B., Bosnar, D., Carasco, C., Ding, M., Distler, M. O., Friedrich, J., Gloeckle, W., Golak, J., Goussev, Y., Grabmayr, P., Heil, W., Huegli, A., Jennewein, P., Manas, G. Jover, Jourdan, J., Kamada, H., Klechneva, T., Krusche, B., Krygier, K. W., Llongo, J. G., Lloyd, M., Makek, M., Merkel, H., Micheli, C., Mueller, U., Nogga, A., Neuhausen, R., Normand, Ch., Nungesser, L., Ott, A., Otten, E., Parpan, F., Benito, R. Perez, Potokar, M., Rohe, D., Rudersdorf, D., Schmiedeskamp, J., Seimetz, M., Sick, I., Sirca, S., Skibinski, R., Stave, S., Testa, G., Trojer, R., Walcher, Th., Weis, M., Witala, H., and Woehrle, H.

Subjects
Nuclear Theory, FOS: Physical sciences, ddc:530, Nuclear Experiment (nucl-ex), Nuclear Experiment
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., accepted by Eur. Phys. Journal A

Published
2005
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3. Measurement of the asymmetries in 3He_polarized(e_polarized, e'p)d and 3He_polarized(e_polariyed, e'p)np

Author

Achenbach, P., Baumann, D., Böhm, R., Boillat, B., Bosnar, Damir, Carasco, C, Ding, M., Distler, M. O., Friedrich, J., Glöckle, W., Golak, J., Goussev, Y., Grabmayr, P., Heil, W., Hügli, A., Jennewein, P., Jover Manas, G., Jourdan, J., Kamada, H., Klechneva, T., Krusche, B., Krygier, K. W., Llongo, J. G., Lloyd, M., Makek, Mihael, Merkel, H., Micheli, C., Müller, U., Nogga, A., Neuhausen, R., Normand, Ch., Nungesser, L., Ott, A., Otten, E., Parpan, F., Pérez Benito, F., Potokar, M., Rohe, D., Rudersdorf, D., Schmiedeskamp, J., Seimetz, M., Sick, I., Sirca, S., Skibinski, R., Stave, S., Testa, G., Trojer, R., Walcher, Th., Weis, M., Witala, H., and Wöhrle, H.

Subjects
Polarization in interactions and scattering, Elastic and quasielastic scattering, Breakup and momentum distributions, Nuclear Theory, Nuclear Experiment
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.

Published
2005

4. Final State Interaction Effects in pol 3He(pol e,e'p)

Author

Carasco, C., Bermuth, J., Merle, P., Bartsch, P., Baumann, D., Boehm, R., Bosnar, D., Ding, M., Distler, M. O., Friedrich, J., Friedrich, J. M., Golak, J., Gloeckle, W., Hauger, M., Heil, W., Jennewein, P., Jourdan, J., Kamada, H., Klein, A., Kohl, M., Krygier, K. W., Merkel, H., Mueller, U., Neuhausen, R., Nogga, A., Normand, Ch., Otten, E., Pospischil, Th., Potokar, M., Rohe, D., Schmieden, H., Schmiedeskamp, J., Seimetz, M., Sick, I., Sirca, S., Skibinski, R., Testa, G., Walcher, Th., Warren, G., Weis, M., Witala, H., Woehrle, H., and Zeier, M.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

Asymmetries in quasi-elastic pol 3He(pol e,e'p) have been measured at a momentum transfer of 0.67 (GeV/c)^2 and are compared to a calculation which takes into account relativistic kinematics in the final state and a relativistic one-body current operator. With an exact solution of the Faddeev equation for the 3He-ground state and an approximate treatment of final state interactions in the continuum good agreement is found with the experimental data., Comment: 11 pages, 6 figures, submitted to Phys. Lett. B, revised version, sensitivity study to relativity and NN-potential added

Published
2003
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5. The neutron charge form factor and target analyzing powers from 3He-pol.(e-pol., e'n) scattering

Author

Bermuth, J., Merle, P., Carasco, C., Baumann, D., Bohm, D., Bosnar, Damir, Ding, M., Distler, M.O., Friedrich, J., Friedrich, J.M., Golak, J., Glockle, W., Hauger, M., Heil, W., Jennewein, P., Jourdan, J., Kamada, H., Klein, A., Kohl, M., Krusche, B., Krygier, K.W., Merkel, H., Muller, U., Neuhausen, R., Nogga, A., Normand, C., Otten, E., Pospischil, T., Potokar, M., Rohe, D., Schmieden, H., Schmiedeskamp, J., Seimetz, M., Sick, I., Sirca, S., Skibinski, R., Testa, G., Walcher, T., Warren, G., Weis, M., Witala, H., Wohrle, H., and Zeier M.

Subjects
Neutron charge form factor, Final-state interaction, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The charge form factor of the neutron has been determined from asymmetries measured in quasi-elastic 3He-pol.(e-pol., e'n) at a momentum transfer of 0.67(GeV/c)2. In addition, the target analysing power Ay0, has been measured to study effects of final state interactions and meson exchange currents.

Published
2003

6. Final state interaction effects in 3He-pol(e-pol, e'p)

Author

Carasco, C., Bermuth, J., Merle, P., Bartsch, P., Baumann, D., Bohm, R., Bosnar, Damir, Ding, M., Distler, M.O., Friedrich, J., Friedrich, J.M., Golak, J., Glockle, W., Hauger, M., Heil, W., Jennewein, P., Jourdan, J., Kamada, H., Klein, A., Kohl, M., Krygier, K.W., Merkel, H., Muller, U., Neuhausen, R., Nogga, A., Normand, C., Otten, E., Pospischil, T., Potokar, M., Rohe, D., Schmieden, H., Schmiedeskamp, J., Seimetz, M., Sick, I., Sirca, S., Skibinski, R., Testa, G., Walcher, T., Warren, G., Weis, M., Witala, H., and Wohrle, H.

Subjects
Polarized electron scattering, 3He-structure, Final-state interaction
Abstract

Asymmetries in quasi-elastic 3He-pol(e-pol, e'P)have been measured at a momentum transfer of 0.67 (GeV/c)2 and are compared to a calculation which takes into account relativistic kinematics in the final state and a relativistic one-body current operator. With an exact solution of the Faddeev equation for the 3He-ground state and an approximate treatment of final state interactions in the continuum good agreement is found with the experimental data.

Published
2003

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