Quasi-elastic nucleon transfer and single charge exchange in 48Ti + 42Ca collisions |
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| Affiliation: | 1. Molecular Otolaryngology and Renal Research Laboratories, Carver College of Medicine, University of Iowa, Iowa City, IA, USA;2. Division of Nephrology, Stead Family Department of Pediatrics, Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA;3. Centre for Complement and Inflammation Research, Department of Medicine, Imperial College, London W12 0NN, UK;4. Centro Investigaciones Biológicas and Ciber de Enfermedades Raras, Ramiro de Maeztu 9, 28040 Madrid, Spain;5. Assistance Publique – Hopitaux de Paris, Service d’Immunologie Biologique, Hopital Europeen Georges Pompidou, Paris, France;6. Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK;7. IRCCS – Istituto di Ricerche Farmacologiche “Mario Negri”, Clinical Research Center for Rare Diseases “Aldo e Cele Daccò”, Ranica, Bergamo, Italy;8. Unidad de Investigación and Ciber de Enfermedades Raras, Hospital Universitario de La Paz_IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain;9. Leibniz Institute for Natural Product Research and Infection Biology, Jena, Germany;10. Friedrich Schiller University, Jena, Germany;1. Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK;2. Centre for Complement and Inflammation Research, Department of Medicine, Imperial College Hammersmith Campus, London, UK;3. INSERM, UMR-S 1064, and Department of Nephrology and Immunology, CHU de Nantes, Nantes, France;4. Department of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA;5. Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France;6. Molecular Otolaryngology and Renal Research Laboratories, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA;7. Division of Nephrology, Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA;8. IRCCS–Istituto di Ricerche Farmacologiche “Mario Negri,” Clinical Research Center for Rare Diseases “Aldo e Cele Daccò,” Ranica, Bergamo, Italy;9. Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain; Centro de Investigación Biomédica en Enfermedades Raras, Madrid, Spain;10. Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S1138, Complément et Maladies, Centre de Recherche des Cordeliers, Paris, France;11. Université Paris Descartes Sorbonne Paris-Cité, Paris, France;12. Université Pierre et Marie Curie (UPMC-Paris-6), Paris, France;13. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA;1. Institute for Solar Energy Research Hamelin (ISFH), Am Ohrberg 1, 31860, Emmerthal, Germany;2. Institute for Electronic Materials and Devices, Leibniz Universität Hannover, Schneiderberg 32, 30167, Hannover, Germany;3. Institute for Solid State Physics, Leibniz Universität Hannover, Appelstr. 2, 30167, Hannover, Germany;4. Laboratory for Nano and Quantum Engineering (LNQE), Leibniz Universität Hannover, Schneiderberg 39, 30167, Hannover, Germany |
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| Abstract: | Single nucleon transfer and single charge exchange have been studied for quasi-elastic collisions of 48Ti and 42Ca at Elab = 240, 300 and 385 MeV. Specific features below 12 MeV excitation energy are displayed in all of the measured particle energy spectra for each channel. These have been accounted for in the case of nucleon transfer by a one-step direct transfer mechanism in which all of the available hole and bound particle states in the donor and acceptor nucleus, respectively, have been included. This core excitation model was extended to single charge exchange (SCX) two-step transfers in which a proton and a neutron are exchanged. The absolute magnitude and distribution of strength in the SCX channel was obtained. The contributions from direct charge exchange via the isovector parts of the NN interaction has also been investigated in a microscopic model and is found to contribute of the order of 1–5% to the charge exchange cross section. The distribution of Fermi and Gamow-Teller strength is discussed. |
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