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Open Access item Structure of Ti-55 from relativistic one-neutron knockout

Authors: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.
Keywords: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
Issue Date:31-Mar-2009
Citation:Physics Letters B 675(1): 22–27 (2009)
Abstract: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.
Description: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
Publisher version (URL):http://dx.doi.org/10.1016/j.physletb.2009
Appears in Collections:(CFMAC-IEM) Artículos

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