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Título : Structure of Ti-55 from relativistic one-neutron knockout
Autor : Maierbeck, P., Gernhäuser, R., Krücken, R., Kröll, T., Álvarez-Pol, H., Aksouh, F., Aumann, T., Behr, K., Benjamim, E. A., Benlliure, J., Bildstein, V., Böhmer, M., Boretzky, K., García Borge, María José, Brünle, A., Bürger, A., Caamaño, M., Casarejos, E., Chatillon, A., Chulkov, L. V., Cortina-Gil, D., Enders, J., Eppinger, K., Faestermann, T., Friese, J., Fabbietti, L., Gascón, M., Geissel, H., Gerl, J., Gorska, M., Hansen, P. G., Jonson, B., Kanungo, R., Kiselev, O., Kojouharov, I., Klimkiewicz, A., Kurtukian, T., Kurz, N., Larsson, K., Le Bleis, T., Mahata, K., Maier, L., Nilsson, T., Nociforo, C., Nyman, G., Pascual-Izarra, C., Perea, Angel, Pérez, D., Prochazka, A., Rodríguez-Tajes, C., Rossi, D., Schaffner, H., Schrieder, G., Schwertel, S., Simon, H., Sitar, B., Stanoiu, M., Sümmerer, K., Tengblad, Olof, Weick, H., Winkler, S., Brown, B. A., Otsuka, T., Tostevin, J., Rae, W. D. M.
Palabras clave : One-neutron knockout
Nuclear structure
[PACS] Shell model
[PACS] γ transitions and level energies
[PACS] Direct reactions
[PACS] Breakup and momentum distributions
[PACS] Properties of specific nuclei listed by mass ranges: 39 ≤ A ≤ 58
Fecha de publicación : 31-Mar-2009
Editor: Elsevier
Citación : Physics Letters B 675(1): 22–27 (2009)
Resumen: Results are presented from a one-neutron knockout reaction at relativistic energies on Ti-56 using the GSI FRS as a two-stage magnetic spectrometer and the Miniball array for gamma-ray detection. Inclusive and exclusive longitudinal momentum distributions and cross-sections were measured enabling the determination of the orbital angular momentum of the populated states. First-time observation of the 955(6) keV vp(3/2)(-1)-hole state in Ti-55 is reported. The measured data for the first time proves that the ground state of Ti-55 is a 1/2(−) state, in agreement with shell-model calculations using the GXPF1A interaction that predict a sizable N=34 gap in Ca-54.
Descripción : 6 pages, 4 figures.-- PACS nrs.: 21.60.Cs; 23.20.Lv; 24.50.+g; 25.60.Gc; 27.40.+z.-- Printed version published May 4, 2009.-- ArXiv pre-print available at: http://arxiv.org/abs/0810.3157
Versión del editor: http://dx.doi.org/10.1016/j.physletb.2009
URI : http://hdl.handle.net/10261/13303
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2009.03.049
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