Obiettivo The astrophysical p-process, the stellar production mechanism of the heavy, proton rich isotopes (p-isotopes), is one of the least studied processes in nucleosynthesis. The astrophysical site(s) for the p-process could not yet be clearly identified. In order to reproduce the natural abundances of the p-isotopes, the p-process models must take into account a huge nuclear reaction network. A precise knowledge of the rate of the nuclear reactions in this network is essential for a reliable abundance calculation and for a clear assignment of the astrophysical site(s). For lack of experimental data the nuclear physics inputs for the reaction networks are based on statistical model calculations. These calculations are largely untested in the mass and energy range relevant to the p-process and the uncertainties in the reaction rate values result in a correspondingly uncertain prediction of the p-isotope abundances. Therefore, experiments aiming at the determination of reaction rates for the p-process are of great importance. In this project nuclear reaction cross section measurements will be carried out in the mass and energy range of p-process to check the reliability of the statistical model calculations and to put the p-process models on a more reliable base. The accelerators of the Institute of Nuclear Research in Debrecen, Hungary provide the necessary basis for such studies. The p-process model calculations are especially sensitive to the rates of reactions involving alpha particles and heavy nuclei. Because of technical difficulties, so far there are practically no experimental data available on such reactions and the uncertainty in these reaction rates is presently one of the biggest contributions to the uncertainty of p-isotope abundance calculations. With the help of the ERC grant the alpha-induced reaction cross sections can be measured on heavy isotopes for the first time, which could contribute to a better understanding of the astrophysical p-process. Campo scientifico natural sciencesphysical sciencesnuclear physicsnatural sciencesmathematicsapplied mathematicsstatistics and probability Parole chiave astrophysics nuclear nuclear astrophysics Programma(i) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Argomento(i) ERC-SG-PE2 - ERC Starting Grant - Fundamental constituents of matter Invito a presentare proposte ERC-2007-StG Vedi altri progetti per questo bando Meccanismo di finanziamento ERC-SG - ERC Starting Grant Istituzione ospitante ATOMMAGKUTATO INTEZET Contributo UE € 750 000,00 Indirizzo BEM TER 18/C 4026 Debrecen Ungheria Mostra sulla mappa Regione Alföld és Észak Észak-Alföld Hajdú-Bihar Tipo di attività Higher or Secondary Education Establishments Contatto amministrativo Zsolt Fülöp (Dr.) Ricercatore principale György Gyürky (Dr.) Collegamenti Contatta l’organizzazione Opens in new window Sito web Opens in new window Costo totale Nessun dato Beneficiari (1) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto ATOMMAGKUTATO INTEZET Ungheria Contributo UE € 750 000,00 Indirizzo BEM TER 18/C 4026 Debrecen Mostra sulla mappa Regione Alföld és Észak Észak-Alföld Hajdú-Bihar Tipo di attività Higher or Secondary Education Establishments Contatto amministrativo Zsolt Fülöp (Dr.) Ricercatore principale György Gyürky (Dr.) Collegamenti Contatta l’organizzazione Opens in new window Sito web Opens in new window Costo totale Nessun dato