Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/4371
Title: Neutron reactions and nuclear cosmo-chronology
Authors: Mosconi, M. 
Heil, M. 
Käppeler, F. 
Mengoni, A. 
Plag, R. 
Fujii, K. 
Gallino, R. 
Aerts, G. 
Terlizzi, R. 
Abbondanno, U. 
Álvarez-Pol, H. 
Marques, L. 
Marrone, S. 
Mastinu, P. 
Milazzo, P. M. 
Moreau, C. 
Neves, F. 
Oberhummer, H. 
Oshima, M. 
O'Brien, S. 
Pancin, J. 
Rosetti, M. 
Papachristodoulou, C. 
Papadopoulos, C. 
Paradela, C. 
Patronis, N. 
Pavlik, A. 
Pavlopoulos, P. 
Perrot, L. 
Plompen, A. 
Plukis, A. 
Poch, A. 
Rubbia, C. 
Pretel, C. 
Quesada, J. 
Rauscher, T. 
Reifarth, R. 
Rudolf, G. 
Rullhusen, P. 
Salgado, J. 
Sarchiapone, L. 
Savvidis, I. 
Stephan, C. 
Tagliente, G. 
Tain, J. L. 
Alvarez-Velarde, F. 
Tassan-Got, L. 
Tavora, L. 
Vannini, G. 
Vaz, P. 
Ventura, A. 
Villamarin, D. 
Vincente, M. C. 
Vlachoudis, V. 
Vlastou, R. 
Voss, F. 
Andriamonje, S. 
Walter, S. 
Wendler, H. 
Wiescher, M. 
Wisshak, K. 
Andrzejewski, J. 
Assimakopoulos, P. 
Audouin, L. 
Badurek, G. 
Baumann, P. 
Becvár, F. 
Berthoumieux, E. 
Bisterzo, S. 
Calviño, F. 
Cano-Ott, D. 
Capote, R. 
Carrillo de Albornoz, A. 
Cennini, P. 
Chepel, V. 
Chiaveri, E. 
Colonna, N. 
Cortes, G. 
Couture, A. 
Cox, J. 
Dahlfors, M. 
David, S. 
Dillman, I. 
Dolfini, R. 
Domingo Pardo, C. 
Dridi, W. 
Duran, I. 
Eleftheriadis, C. 
Embid-Segura, M. 
Ferrant, L. 
Ferrari, A. 
Ferreira-Marques, R. 
Fitzpatrick, L. 
Frais-Koelbl, H. 
Furman, W. 
Goncalves, I. 
Gonzalez-Romero, E. 
Goverdovski, A. 
Gramegna, F. 
Griesmayer, E. 
Guerrero, C. 
Gunsing, F. 
Haas, B. 
Haight, R. 
Herrera-Martinez, A. 
Igashira, M. 
Isaev, S. 
Jericha, E. 
Kadi, Y. 
Karamanis, D. 
Karadimos, D. 
Kerveno, M. 
Ketlerov, V. 
Koehler, P. 
Konovalov, V. 
Kossionides, E. 
Krticka, M. 
Lamboudis, C. 
Leeb, H. 
Lindote, A. 
Lopes, I. 
Lozano, M. 
Lukic, S. 
Marganiec, J. 
Keywords: Re/Os cosmo-chronometer; s process; Stellar cross sections; Neutron capture; Inelastic scattering
Issue Date: 2007
Citation: Progress in Particle and Nuclear Physics. 59:1 (2007) 165-173
Abstract: The [beta]-decay of 187Re represents a suited cosmo-chronometer for the age of the r-process abundances, since the radiogenic part of the daughter isotope 187Os is defined by the difference between the solar 187Os abundance and s-process contribution to 187Os. The latter component can be determined via the s-process systematics based on the stellar neutron capture cross sections of 186Os and 187Os. The laboratory cross section of 187Os requires a significant correction for the effect of the low-lying excited state at 9.75 keV, which is strongly populated under stellar conditions. This theoretical correction can be improved by an experimental cross section for inelastic scattering to the 9.75 keV state. High resolution time-of-flight measurements of (n,[gamma]) cross sections of 186,187,188Os from 1 eV to 1 MeV at CERN n_TOF facility are reported. The inferred stellar cross sections differ from previously recommended values. In addition, the inelastic scattering cross section has been measured at 30 keV neutron energy via time-of-flight at the Karlsruhe 3.7 MV Van de Graaff. The implications of these results for the Re/Os clock are discussed.
URI: https://hdl.handle.net/10316/4371
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
file4e28db21836e419fa8993bbd4070199c.pdf680.42 kBAdobe PDFView/Open
Show full item record

Page view(s) 50

706
checked on Mar 12, 2024

Download(s) 50

312
checked on Mar 12, 2024

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.