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2 results on '"Eikonal model"'

1. Reliable extraction of the dB(E1)/dE for 11Be from its breakup at 520 MeV/nucleon

Author

Moschini, Laura, Capel, Pierre, Moschini, Laura, and Capel, Pierre

Abstract

We analyze the breakup of the one-neutron halo nucleus 11Be measured at 520 MeV/nucleon at GSI on Pb and C targets within an eikonal description of the reaction including a proper treatment of special relativity. The Coulomb term of the projectile-target interaction is corrected at first order, while its nuclear part is described at the optical limit approximation. Good agreement with the data is obtained using a description of 11Be, which fits the breakup data of RIKEN. This solves the apparent discrepancy between the dB(E1)/dE estimations from GSI and RIKEN for this nucleus., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2019

2. Structure of 33Mg sheds new light on the island of inversion

Author

Kanungo, R., Nociforo, C., Prochazka, A., Utsuno, Y., Aumann, T., Boutin, D., Cortina-Gil, D., Davids, B., Diakaki, M., Farinon, F., Geissel, H., Gernhäuser, R., Gerl, J., Janik, R., Jonson, B., Kindler, B., Knöbel, R., Krücken, R., Lantz, Mattias, Lenske, H., Litvinov, Y., Mahata, K., Maierbeck, P., Musumarra, A., Nilsson, T., Otsuka, T., Perro, C., Scheidenberger, C., Sitar, B., Strmen, P., Sun, B., Szarka, I., Tanihata, I., Weick, H., Winkler, M., Kanungo, R., Nociforo, C., Prochazka, A., Utsuno, Y., Aumann, T., Boutin, D., Cortina-Gil, D., Davids, B., Diakaki, M., Farinon, F., Geissel, H., Gernhäuser, R., Gerl, J., Janik, R., Jonson, B., Kindler, B., Knöbel, R., Krücken, R., Lantz, Mattias, Lenske, H., Litvinov, Y., Mahata, K., Maierbeck, P., Musumarra, A., Nilsson, T., Otsuka, T., Perro, C., Scheidenberger, C., Sitar, B., Strmen, P., Sun, B., Szarka, I., Tanihata, I., Weick, H., and Winkler, M.

Abstract

The first reaction spectroscopy on the ground state structure of 33Mg through the measurement ofthe longitudinal momentum distribution from the one-neutron removal reaction using a C target at 898 A MeV is reported. The experiment was performed at the FRS, GSI. The distribution has a relativelynarrow width (150 ± 3 MeV/c (FWHM)) and the one-neutron removal cross-section is 74 ± 4 mb. An in-creased contribution from the 2p3/2 orbital is required to explain the observation showing its loweringcompared to existing model predictions. This provides new information regarding the configuration of 33Mg and the island of inversion.

Published
2010
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