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Resonance capture cross section of ²⁰⁷Pb

Domingo-Pardo, C. and Abbondanno, U. and Aerts, G. and Alvarez-Pol, H. and Alvarez-Velarde, F. and Andriamonje, S. and Andrzejewski, J. and Assimakopoulos, P. and Audouin, L. and Badurek, G. and Baumann, P. and Becvar, F. and Berthoumieux, E. and Bisterzo, S. and Calvino, F. and Cano-Ott, D. and Capote, R. and Carrapico, C. and Cennini, P. and Chepel, V. and Chiaveri, E. and Colonna, N. and Cortes, G. and Couture, A. and Cox, J. and Dahlfors, M. and David, S. and Dillman, I. and Dolfini, R. and Dridi, W. and Duran, I. and Eleftheriadis, C. and Embid-Segura, M. and Ferrant, L. and Ferrari, A. and Ferreira-Marques, R. and Fitzpatrick, L. and Frais-Koelbl, H. and Fujii, K. and Furman, W. and Gallino, R. and Goncalves, I. and Gonzalez-Romero, E. and Goverdovski, A. and Gramegna, F. and Griesmayer, E. and Guerrero, C. and Gunsing, F. and Haas, B. and Haight, R. and Heil, M. and Herrera-Martinez, A. and Igashira, M. and Isaev, S. and Jericha, E. and Kadi, Y. and Kaeppeler, F. and Karamanis, D. and Karadimos, D. and Kerveno, M. and Ketlerov, V. and Koehler, P. and Konovalov, V. and Kossionides, E. and Krticka, M. and Lamboudis, C. and Leeb, H. and Lindote, A. and Lopes, I. and Lozano, M. and Lukic, S. and Marganiec, J. and Marrone, S. and Mastinu, P. and Mengoni, A. and Milazzo, P. M. and Moreau, C. and Mosconi, M. and Neves, F. and Oberhummer, H. and Oshima, M. and O`Brien, S. and Pancin, J. and Papachristodoulou, C. and Papadopoulos, C. and Paradela, C. and Patronis, N. and Pavlik, A. and Pavlopoulos, P. and Perrot, L. and Plag, R. and Plompen, A. and Plukis, A. and Poch, A. and Pretel, C. and Quesada, J. and Rauscher, T. and Reifarth, R. and Rosetti, M. and Rubbia, C. and Rudolf, G. and Rullhusen, P. and Salgado, J. and Sarchiapone, L. and Savvidis, I. and Stephan, C. and Tagliente, G. and Tain, J. L. and Tassan-Got, L. and Tavora, L. and Terlizzi, R. and Vannini, G. and Vaz, P. and Ventura, A. and Villamarin, D. and Vincente, M. C. and Vlachoudis, V. and Vlastou, R. and Voss, F. and Walter, S. and Wendler, H. and Wiescher, M. and Wisshak, K.. (2006) Resonance capture cross section of ²⁰⁷Pb. Physical review. C, Nuclear physics, Vol. 74, H. 5 , 055802, 6 S..

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Official URL: http://edoc.unibas.ch/dok/A5253891

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Abstract

The radiative neutron capture cross section of Pb-207 has been measured at the CERN neutron time of flight installation n_TOF using the pulse height weighting technique in the resolved energy region. The measurement has been performed with an optimized setup of two C6D6 scintillation detectors, which allowed us to reduce scattered neutron backgrounds down to a negligible level. Resonance parameters and radiative kernels have been determined for 16 resonances by means of an R-matrix analysis in the neutron energy range from 3 keV to 320 keV. Good agreement with previous measurements was found at low neutron energies, whereas substantial discrepancies appear beyond 45 keV. With the present results, we obtain an s-process contribution of 77 +/- 8 to the solar abundance of Pb-207. This corresponds to an r-process component of 23 +/- 8 of metal poor halo stars.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Rauscher, Thomas
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0556-2813
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:49

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