Neutron physics of the Re/Os clock. III. Resonance analyses and stellar (n, gamma) cross sections of Os-186,Os-187,Os-188

Fujii, K; Mosconi, M; Mengoni, A; Domingo-Pardo, C; Kappeler, F; Abbondanno, U; Aerts, G; Alvarez-Pol, H; Alvarez-Velarde, F; Andriamonje, S; Andrzejewski, J; Assimakopoulos, P; Audouin, L; Badurek, G; Baumann, P; Becvar, F; Belloni, F; Berthoumieux, E; Bisterzo, S; Calviani, M; Calvino, F; Cano-Ott, D; Capote, R; de Albornoz, AC; Cennini, P; Chepel, V; Chiaveri, E; Colonna, N; Cortes, G; Couture, A; Cox, J; Dahlfors, M; David, S; Dillmann, I; Dolfini, R; Dridi, W; Duran, I; Eleftheriadis, C; Embid-Segura, M; Ferrant, L; Ferrari, A; Ferreira-Marques, R; Fitzpatrick, L; Frais-Koelbl, H; Furman, W; Gallino, R; Goncalves, I; Gonzalez-Romero, E; Goverdovski, A; Gramegna, F; Griesmayer, E; Guerrero, C; Gunsing, F; Haas, B; Haight, R; Heil, M; 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; Marques, L; Marrone, S; Massimi, C; Mastinu, P; Milazzo, PM; Moreau, C; Neves, F; Oberhummer, H; Oshima, M; O'Brien, S; Pancin, J; Papachristodoulou, C; Papadopoulos, C; Paradela, C; Patronis, N; Pavlik, A; Pavlopoulos, P; Perrot, L; Plag, R; Plompen, A; Plukis, A; Poch, A; Praena, J; Pretel, C; Quesada, J; Rauscher, T; Reifarth, R; Rosetti, M; Rubbia, C; Rudolf, G; Rullhusen, P; Salgado, J; Sarchiapone, L; Savvidis, I; Stephan, C; Tagliente, G; Tain, JL; Tassan-Got, L; Tavora, L; Terlizzi, R; Vannini, G; Vaz, P; Ventura, A; Villamarin, D; Vincente, MC; Vlachoudis, V; Vlastou, R; Voss, F; Walter, S; Wendler, H; Wiescher, M; Wisshak, K

dc.contributor.author	Fujii, K	en
dc.contributor.author	Mosconi, M	en
dc.contributor.author	Mengoni, A	en
dc.contributor.author	Domingo-Pardo, C	en
dc.contributor.author	Kappeler, F	en
dc.contributor.author	Abbondanno, U	en
dc.contributor.author	Aerts, G	en
dc.contributor.author	Alvarez-Pol, H	en
dc.contributor.author	Alvarez-Velarde, F	en
dc.contributor.author	Andriamonje, S	en
dc.contributor.author	Andrzejewski, J	en
dc.contributor.author	Assimakopoulos, P	en
dc.contributor.author	Audouin, L	en
dc.contributor.author	Badurek, G	en
dc.contributor.author	Baumann, P	en
dc.contributor.author	Becvar, F	en
dc.contributor.author	Belloni, F	en
dc.contributor.author	Berthoumieux, E	en
dc.contributor.author	Bisterzo, S	en
dc.contributor.author	Calviani, M	en
dc.contributor.author	Calvino, F	en
dc.contributor.author	Cano-Ott, D	en
dc.contributor.author	Capote, R	en
dc.contributor.author	de Albornoz, AC	en
dc.contributor.author	Cennini, P	en
dc.contributor.author	Chepel, V	en
dc.contributor.author	Chiaveri, E	en
dc.contributor.author	Colonna, N	en
dc.contributor.author	Cortes, G	en
dc.contributor.author	Couture, A	en
dc.contributor.author	Cox, J	en
dc.contributor.author	Dahlfors, M	en
dc.contributor.author	David, S	en
dc.contributor.author	Dillmann, I	en
dc.contributor.author	Dolfini, R	en
dc.contributor.author	Dridi, W	en
dc.contributor.author	Duran, I	en
dc.contributor.author	Eleftheriadis, C	en
dc.contributor.author	Embid-Segura, M	en
dc.contributor.author	Ferrant, L	en
dc.contributor.author	Ferrari, A	en
dc.contributor.author	Ferreira-Marques, R	en
dc.contributor.author	Fitzpatrick, L	en
dc.contributor.author	Frais-Koelbl, H	en
dc.contributor.author	Furman, W	en
dc.contributor.author	Gallino, R	en
dc.contributor.author	Goncalves, I	en
dc.contributor.author	Gonzalez-Romero, E	en
dc.contributor.author	Goverdovski, A	en
dc.contributor.author	Gramegna, F	en
dc.contributor.author	Griesmayer, E	en
dc.contributor.author	Guerrero, C	en
dc.contributor.author	Gunsing, F	en
dc.contributor.author	Haas, B	en
dc.contributor.author	Haight, R	en
dc.contributor.author	Heil, M	en
dc.contributor.author	Herrera-Martinez, A	en
dc.contributor.author	Igashira, M	en
dc.contributor.author	Isaev, S	en
dc.contributor.author	Jericha, E	en
dc.contributor.author	Kadi, Y	en
dc.contributor.author	Karamanis, D	en
dc.contributor.author	Karadimos, D	en
dc.contributor.author	Kerveno, M	en
dc.contributor.author	Ketlerov, V	en
dc.contributor.author	Koehler, P	en
dc.contributor.author	Konovalov, V	en
dc.contributor.author	Kossionides, E	en
dc.contributor.author	Krticka, M	en
dc.contributor.author	Lamboudis, C	en
dc.contributor.author	Leeb, H	en
dc.contributor.author	Lindote, A	en
dc.contributor.author	Lopes, I	en
dc.contributor.author	Lozano, M	en
dc.contributor.author	Lukic, S	en
dc.contributor.author	Marganiec, J	en
dc.contributor.author	Marques, L	en
dc.contributor.author	Marrone, S	en
dc.contributor.author	Massimi, C	en
dc.contributor.author	Mastinu, P	en
dc.contributor.author	Milazzo, PM	en
dc.contributor.author	Moreau, C	en
dc.contributor.author	Neves, F	en
dc.contributor.author	Oberhummer, H	en
dc.contributor.author	Oshima, M	en
dc.contributor.author	O'Brien, S	en
dc.contributor.author	Pancin, J	en
dc.contributor.author	Papachristodoulou, C	en
dc.contributor.author	Papadopoulos, C	en
dc.contributor.author	Paradela, C	en
dc.contributor.author	Patronis, N	en
dc.contributor.author	Pavlik, A	en
dc.contributor.author	Pavlopoulos, P	en
dc.contributor.author	Perrot, L	en
dc.contributor.author	Plag, R	en
dc.contributor.author	Plompen, A	en
dc.contributor.author	Plukis, A	en
dc.contributor.author	Poch, A	en
dc.contributor.author	Praena, J	en
dc.contributor.author	Pretel, C	en
dc.contributor.author	Quesada, J	en
dc.contributor.author	Rauscher, T	en
dc.contributor.author	Reifarth, R	en
dc.contributor.author	Rosetti, M	en
dc.contributor.author	Rubbia, C	en
dc.contributor.author	Rudolf, G	en
dc.contributor.author	Rullhusen, P	en
dc.contributor.author	Salgado, J	en
dc.contributor.author	Sarchiapone, L	en
dc.contributor.author	Savvidis, I	en
dc.contributor.author	Stephan, C	en
dc.contributor.author	Tagliente, G	en
dc.contributor.author	Tain, JL	en
dc.contributor.author	Tassan-Got, L	en
dc.contributor.author	Tavora, L	en
dc.contributor.author	Terlizzi, R	en
dc.contributor.author	Vannini, G	en
dc.contributor.author	Vaz, P	en
dc.contributor.author	Ventura, A	en
dc.contributor.author	Villamarin, D	en
dc.contributor.author	Vincente, MC	en
dc.contributor.author	Vlachoudis, V	en
dc.contributor.author	Vlastou, R	en
dc.contributor.author	Voss, F	en
dc.contributor.author	Walter, S	en
dc.contributor.author	Wendler, H	en
dc.contributor.author	Wiescher, M	en
dc.contributor.author	Wisshak, K	en
dc.date.accessioned	2014-03-01T02:00:30Z
dc.date.available	2014-03-01T02:00:30Z
dc.date.issued	2010	en
dc.identifier.issn	0556-2813	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29112
dc.subject.classification	Physics, Nuclear	en
dc.subject.other	GIANT BRANCH STARS	en
dc.subject.other	METAL-POOR	en
dc.subject.other	RE-187-OS-187 SYSTEMATICS	en
dc.subject.other	CHEMICAL EVOLUTION	en
dc.subject.other	STATISTICAL-MODEL	en
dc.subject.other	OSMIUM ISOTOPES	en
dc.subject.other	CAPTURE	en
dc.subject.other	NUCLEOSYNTHESIS	en
dc.subject.other	AGE	en
dc.subject.other	COSMOCHRONOLOGY	en
dc.title	Neutron physics of the Re/Os clock. III. Resonance analyses and stellar (n, gamma) cross sections of Os-186,Os-187,Os-188	en
heal.type	journalArticle	en
heal.identifier.secondary	015804	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Neutron resonance analyses have been performed for the capture cross sections of Os-186, Os-187, and Os-188 measured at the n_TOF facility at CERN. Resonance parameters have been extracted up to 5, 3, and 8 keV, respectively, using the SAMMY code for a full R-matrix fit of the capture yields. From these results average resonance parameters were derived by a statistical analysis to provide a comprehensive experimental basis for modeling of the stellar neutron capture rates of these isotopes in terms of the Hauser-Feshbach statistical model. Consistent calculations for the capture and inelastic reaction channels are crucial for the evaluation of stellar enhancement factors to correct the Maxwellian averaged cross sections obtained from experimental data for the effect of thermally populated excited states. These factors have been calculated for the full temperature range of current scenarios of s-process nucleosynthesis using the combined information of the experimental data in the region of resolved resonances and in the continuum. The consequences of this analysis for the s-process component of the Os-187 abundance and the related impact on the evaluation of the time duration of galactic nucleosynthesis via the Re/Os cosmochronometer are discussed.	en
heal.publisher	AMER PHYSICAL SOC	en
heal.journalName	PHYSICAL REVIEW C	en
dc.identifier.isi	ISI:000279940200009	en
dc.identifier.volume	82	en
dc.identifier.issue	1	en