Giant dipole resonances built on excited states in 90Zr through radiative proton capture |
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| Affiliation: | 1. Physics Department, University of Notre Dame, Notre Dame, IN 46556, USA;2. Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA;3. NSCL, Michigan State University, East Lansing, MI 48824, USA;4. Department of Physics, Government Degree College, Kulgam 192 231, India;5. Cluster University, Srinagar, Jammu and Kashmir, 190 008, India;6. Physik-Department, Technische Universität München, D-85747 Garching, Germany;7. UGC-DAE Consortium for Scientific Research, Kolkata 700 064, India;8. Nuclear Physics Division, Bhabha Atomic Research Center, Mumbai 400 085, India;9. Department of Physics, United States Naval Academy, Annapolis, MD 21402, USA;10. Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;11. Triangle Universities Nuclear Laboratory, Duke University, Durham, NC 27708, USA;12. Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400 005, India;13. Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110 067, India;1. Pacific Northwest National Laboratory, Richland, WA 99352, USA;2. Lawrence Livermore National Laboratory, Livermore, CA 94550, USA;3. Department of Homeland Security, Washington D.C. 20528, USA;4. Los Alamos National Laboratory, Los Alamos, NM 87545, USA;5. Oregon State University, Corvallis, OR 97331, USA;6. Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA;1. INFN sezione di Roma “Tor Vergata”, I-00133 Rome, Italy;2. Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133, Rome, Italy;3. INFN, Laboratori Nazionali del Gran Sasso, I-67100 Assergi (AQ), Italy;4. Department of Physics, Queen''s University, Kingston, ON K7L 3N6, Canada;5. INFN sezione di Roma, I-00185 Rome, Italy;6. Dipartimento di Fisica, Università di Roma “La Sapienza”, I-00185 Rome, Italy;7. Department of Chemistry, Queen''s University, Kingston, ON K7L 3N6, Canada;1. GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany;2. Helmholtz-Institut Mainz, 55099 Mainz, Germany;3. GANIL, 14076 Caen Cedex, France;4. Comenius University in Bratislava, 84248 Bratislava, Slovakia;5. Johannes Gutenberg-Universität, 55099 Mainz, Germany;6. Technische Universität Darmstadt, 64289 Darmstadt, Germany;7. Universität Greifswald, 17489 Greifswald, Germany;8. Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany;9. Institute of Modern Physics, Chinese Academy of Sciences, 730000 Lanzhou, China;1. Nuclear Physics Division, Saha Institute of Nuclear Physics, HBNI, Kolkata 700064, India;2. Department of Physics, Presidency University, Kolkata 700073, India;3. Nuclear Physics Group, UGC-DAE-Consortium for Scientific Research, Kolkata 700098, India;4. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, China;5. Department of Physics, University of Calcutta, Kolkata 700009, India;6. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, 100871, China;7. Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400005, India;8. Department of Physics, Indian Institute of Technology (BHU), Banaras 221005, India;9. Department of Physics, Indian Institute of Engineering Science and Technology, Howrah 711103, India;10. Physics Group, Variable Energy Cyclotron Center, Kolkata 700064, India;11. High Energy Nuclear & Particle Physics Division, Saha Institute of Nuclear Physics, HBNI, Kolkata 700064, India;12. Physics Department, Indian Institute of Technology, Kharagpur 721302, India;13. Department of Pure and Applied Physics, Guru Ghasidas Vishayavidyalaya, Bilaspur 495009, India;1. Department of Physics, Engineering Physics & Astronomy, Queen''s University, Kingston, Ontario K7L 3N6, Canada;2. Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;3. Joint Institute for Nuclear Physics and Application, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;4. Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA;5. Department of Nuclear Engineering, University of Tennessee, Knoxville, TN 37996, USA;6. Joint Institute for Advanced Materials, University of Tennessee, Knoxville, TN 37996, USA;7. Max-Planck-Institut für Physik, Munich D-80805, Germany;8. MPG Semiconductor Laboratory, Munich D-80805, Germany |
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| Abstract: | We have studied the 89Y(p, γi)90Zr reaction populating the states of 90Zr at 0.0, 1.761, 2.186, 2.321 and 2.743 MeV. The 90° cross sections were measured from Ep = 3.7 to 11.5 MeV. The data were analysed by the statistical and direct-semidirect models. Spectroscopic factors of low-lying states in 90Zr were determined. |
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