A study of the (t,p) reactions leading to 48Ti and 50Ti |
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| Affiliation: | 1. School of National Defense Science and Technology, State Key Laboratory for Environment Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China;2. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;3. College of Science, Beijing University of Chemical Technology, Beijing 100029, China;4. School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China;1. Institute for Nuclear Research, Ukrainian Academy of Sciences, Prospect Nauki 47, 03680 Kyiv, Ukraine;2. Physics Department, Florida State University, Tallahassee, FL 32306-4350, USA;3. Heavy Ion Laboratory of Warsaw University, ul. L. Pasteura 5A, PL-02-093 Warsaw, Poland;4. H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31-342 Cracow, Poland;5. Kharkiv National University, pl. Svobody 4, 61077 Kharkiv, Ukraine;6. Russian Research Center “Kurchatov Institute”, Kurchatov Sq. 1, 123182 Moscow, Russia;7. National Center for Nuclear Researches, ul. Hoża 69, PL-00-681 Warsaw, Poland;1. ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt, Germany;2. Department of Physics, Duke University and Triangle Universities Nuclear Laboratory, Durham, NC 27708-0308, USA;3. Frankfurt Institute for Advanced Studies FIAS, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, Germany;4. Physics Division, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA;5. Department of Physics, North Carolina State University, Raleigh, NC 27607, USA;6. GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt, Germany;7. Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany;8. Institut für Kernphysik, TU Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany;9. WNSL, Yale University, P.O. Box 208120, New Haven, CT 06520-8120, USA;10. University of the West of Scotland, Paisley PA1 2BE, UK;11. SUPA, Scottish Universities Physics Alliance, Glasgow G12 8QQ, UK |
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| Abstract: | Angular distributions of the proton groups from the 46Ti(t, p) and 48Ti(t, p) reactions have been measured at incident triton energies of 9.64 and 11.14 MeV, respectively, using a multi-angle magnetic spectrograph. Nine distributions of the stronger groups from the 46Ti(t, p) reaction were measured leading to states of 48Ti up to an excitation of5.50 MeV. For the 48Ti(t, p) reaction distributions of 24 stronger groups were measured up to an excitation of 8.29 MeV in 50Ti.The results have been analysed using plane wave, two-nucleon stripping theory and many L-value assignments have been made. The results are compared with the corresponding (d, p) reactions in all cases where comparisons may be made the ln values from the latter agree with the (t, p) L-values.For both (t, p) reactions the ground state groups are strong and are formed by L = 0, two-neutron transfer. The low lying excited states are very weak in both reactions but strong L = 0 transitions were observed to the 4.97 MeV excited state of 48Ti and to the 3.88 MeV state of 50Ti. Neither of these states is appreciably excited in the corresponding (d, p) reaction. A discussion on the possible structure of these states and the occurence of similar states in neighbouring nuclei has been reported previously1). |
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