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arXiv · 0810.3157

Structure of 55Ti from relativistic one-neutron knockout

P. Maierbeck·R. Gernhäuser·R. Krücken·T. Kröll·H. Alvarez-Pol·F. Aksouh·T. Aumann·K. Behr·E. A. Benjamim·J. Benlliure·V. Bildstein·M. Böhmer·K. Boretzky·M. J. G. Borge·A. Brünle·A. Bürger·M. Caamaño·E. Casarejos·A. Chatillon·L. V. Chulkov·D. Cortina-Gil·J. Enders·K. Eppinger·T. Faestermann·J. Friese·L. Fabbietti·M. Gascón·H. Geissel·J. Gerl·M. Gorska·P. G. Hansen·B. Jonson·R. Kanungo·O. Kiselev·I. Kojouharov·A. Klimkiewicz·T. Kurtukian·N. Kurz·K. Larsson·T. Le Bleis·K. Mahata·L. Maier·T. Nilsson·C. Nociforo·G. Nyman·C. Pascual-Izarra·A. Perea·D. Perez·A. Prochazka·C. Rodriguez-Tajes·D. Rossi·H. Schaffner·G. Schrieder·S. Schwertel·H. Simon·B. Sitar·M. Stanoiu·K. Sümmerer·O. Tengblad·H. Weick·S. Winkler·B. A. Brown·T. Otsuka·J. Tostevin·W. D. M. Rae
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Abstract

Results are presented from a one-neutron knockout reaction at relativistic energies on 56Ti 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 nu p3/2-hole state in 55Ti is reported. The measured data for the first time proves that the ground state of 55Ti is a 1/2- state, in agreement with shell-model calculations using the GXPF1A interaction that predict a sizable N=34 gap in 54Ca.

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P. Maierbeck, R. Gernhäuser, R. Krücken, T. Kröll, H. Alvarez-Pol, F. Aksouh, T. Aumann, K. Behr, E. A. Benjamim, J. Benlliure, V. Bildstein, M. Böhmer, K. Boretzky, M. J. G. Borge, A. Brünle, A. Bürger, M. Caamaño, E. Casarejos, A. Chatillon, L. V. Chulkov, D. Cortina-Gil, J. Enders, K. Eppinger, T. Faestermann, J. Friese, L. Fabbietti, M. Gascón, H. Geissel, J. Gerl, M. Gorska, P. G. Hansen, B. Jonson, R. Kanungo, O. Kiselev, I. Kojouharov, A. Klimkiewicz, T. Kurtukian, N. Kurz, K. Larsson, T. Le Bleis, K. Mahata, L. Maier, T. Nilsson, C. Nociforo, G. Nyman, C. Pascual-Izarra, A. Perea, D. Perez, A. Prochazka, C. Rodriguez-Tajes, D. Rossi, H. Schaffner, G. Schrieder, S. Schwertel, H. Simon, B. Sitar, M. Stanoiu, K. Sümmerer, O. Tengblad, H. Weick, S. Winkler, B. A. Brown, T. Otsuka, J. Tostevin, W. D. M. Rae. 2009-02-05. Structure of 55Ti from relativistic one-neutron knockout. https://doi.org/10.1016/j.physletb.2009.03.049

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