Coulomb dissociation of P 27 at 500 MeV/u
| Autor: | Enrique Casarejos, C. Muentz, D. Galaviz, Andreas Wagner, Z. Elekes, K. Mahata, A. Chatillon, C. Rodríguez Tajes, T. Le Bleis, D. Cortina-Gil, Yu. A. Litvinov, N. Kurz, Hans Geissel, Fairouz Hammache, Helmut Weick, W. Ott, K. Sümmerer, H. Simon, F. Wamers, S. Giron, M. Stanoiu, Michael Heil, H. Alvarez-Pol, W. Prokopowicz, Kristian Larsson, Thomas Aumann, C. Nociforo, Uwe Greife, S. Beceiro Novo, C. Wimmer, J. Marganiec, Christoph Langer, Håkan T Johansson, Stefan Typel, Joachim Stroth, Zsolt Fülöp, D. Rossi, K. Boretzky, Michael Wiescher, J. Hoffman, O. Kiselev, U. Datta-Pramanik, R. Plag, Stefanos Paschalis |
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| Přispěvatelé: | European Money Markets Institute, Helmholtz Centre for Heavy Ion Research, Xunta de Galicia, Ministerio de Economía y Competitividad (España), Federal Ministry of Education and Research (Germany), National Science Foundation (US), Joint Institute for Nuclear Astrophysics - Center for the Evolution of the Elements (US), Nuclear Astrophysics Virtual Institute (Germany), Helmholtz Association, European Commission, Universidad de Santiago de Compostela, Helmholtz International Center for FAIR, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), R3B Collaboration |
| Rok vydání: | 2016 |
| Předmět: |
Physics
010308 nuclear & particles physics S-factor Monte Carlo method Nuclear structure Resonance [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] 7. Clean energy 01 natural sciences Dissociation (chemistry) Intruder state Nuclear physics 0103 physical sciences Coulomb Atomic physics 010306 general physics Nuclear Experiment Excitation |
| Zdroj: | Physical Review C Physical Review C, American Physical Society, 2016, 93 (4), pp.045811 ⟨10.1103/PhysRevC.93.045811⟩ Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2469-9985 2469-9993 |
| DOI: | 10.1103/PhysRevC.93.045811⟩ |
| Popis: | J. Marganiec et al. ; 15 págs.; 14 figs.; 6 tabs. The proton-capture reaction Si26(p,γ)P27 was studied via Coulomb dissociation (CD) of P27 at an incident energy of about 500 MeV/u. The three lowest-lying resonances in P27 have been populated and their resonance strengths have been measured. In addition, a nonresonant direct-capture component was clearly identified and its astrophysical S factor measured. The experimental results are compared to Monte Carlo simulations of the CD process using a semiclassical model. Our thermonuclear reaction rates show good agreement with the rates from a recent compilation. With respect to the nuclear structure of P27 we have found evidence for a negative-parity intruder state at 2.88-MeV excitation energy. ©2016 American Physical Society This project was supported by BMBF, EU(EURONS), EMMI, GSI Darmstadt, FIAS, NAVI, GSI-TU Darmstadt cooperation, and HIC for FAIR. S.T. was supported by the Helmholtz Association (HGF) through the Nuclear Astrophysics Virtual Institute (VH-VI-417). C.L. acknowledges support from JINA-CEE under Grants No. PHY-1430152 and No. PHY-0822648 of the National Science Foundation. S.B.N. and the University of Santiago de Compostela group acknowledge support from the Spanish Ministerio de Educacion, under Grants No. FPU-AP2006-01474, No. FPA2012-39404-C02- 01, and No. FPA2013-47831-C2-1 and from Xunta de Galicia under Grant No. GRC2013-11. |
| Databáze: | OpenAIRE |
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