Radiative Neutron Capture Cross-Section Measurement of Ge Isotopes at n_TOF CERN Facility and Its Importance for Stellar Nucleosynthesis

A. Gawlik , C. Lederer-Woods , J. Andrzejewski , J. Perkowski , U. Battino , P. Ferreira , F. Gunsing (1) , S. Heinitz , M. Krtička , C. Massimi , F. Mingrone , R. Reifarth , A. Tattersall , S. Valenta , C. Weiss , O. Aberle , L. Audouin (2) , M. Bacak , J. Balibrea , M. Barbagallo , S. Barros , V. Bécares , F. Bečvář , C. Beinrucker , E. Berthoumieux (1) , J. Billowes , D. Bosnar , M. Brugger , M. Caamaño , F. Calviño , M. Calviani , D. Cano-Ott , R. Cardella , A. Casanovas , D.M. Castelluccio , F. Cerutti , Y.H. Chen (2) , E. Chiaveri , N. Colonna , G. Cortés , M.A. Cortés-Giraldo , L. Cosentino , L.A. Damone , M. Diakaki (1) , M. Dietz , C. Domingo-Pardo , R. Dressler , E. Dupont (1) , I. Durán , B. Fernández-Domínguez , A. Ferrari , P. Finocchiaro , V. Furman , K. Göbel , A.R. García , T. Glodariu , I.F. Gonçalves , E. González-Romero , A. Goverdovski , E. Griesmayer , C. Guerrero , H. Harada , T. Heftrich , J. Heyse , D.G. Jenkins , E. Jericha , F. Käppeler , Y. Kadi , T. Katabuchi , P. Kavrigin , V. Ketlerov , V. Khryachkov , A. Kimura , N. Kivel , I. Knapova , M. Kokkoris , E. Leal-Cidoncha , H. Leeb , J. Lerendegui-Marco , S. Lo Meo , S.J. Lonsdale , R. Losito , D. Macina , T. Martínez , P. Mastinu , M. Mastromarco , F. Matteucci , E.A. Maugeri , E. Mendoza , A. Mengoni , P.M. Milazzo , M. Mirea , S. Montesano , A. Musumarra , R. Nolte , A. Oprea , N. Patronis , A. Pavlik , J.I. Porras , J. Praena , J.M. Quesada , K. Rajeev , T. Rauscher , A. Riego-Perez , P.C. Rout , C. Rubbia , J.A. Ryan , M. Sabaté-Gilarte , A. Saxena , P. Schillebeeckx , S. Schmidt , D. Schumann , P. Sedyshev , A.G. Smith , A. Stamatopoulos , G. Tagliente , J.L. Tain , A. Tarifeño-Saldivia , L. Tassan-Got (2) , A. Tsinganis , G. Vannini , V. Variale , P. Vaz , A. Ventura , V. Vlachoudis , R. Vlastou , A. Wallner , S. Warren , M. Weigand , C. Wolf , P.J. Woods , T. Wright , P. Žugec

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 IPNO - Institut de Physique Nucléaire d'Orsay

This manuscript summarizes the results of radiative neutron capture cross-section measurements on two stable germanium isotopes, $^{70}$Ge and $^{73}$Ge. Experiments were performed at the n_TOF facility at CERN via the time-of-flight technique, over a wide neutron energy range, for all stable germanium isotopes (70,72,73,74, and 76). Results for $^{70}$Ge [Phys. Rev. C 100, 045804 (2019)] and $^{73}$Ge [Phys. Lett. B 790, 458 (2019)] are already published. In the field of nuclear structure, such measurements allow to study excited levels close to the neutron binding energy and to obtain information on nuclear properties. In stellar nucleosynthesis research, neutron induced reactions on germanium are of importance for nucleosynthesis in the weak component of the slow neutron capture processes.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]; Astrophysique [astro-ph]

A. Gawlik, C. Lederer-Woods, J. Andrzejewski, J. Perkowski, U. Battino, et al.. Radiative Neutron Capture Cross-Section Measurement of Ge Isotopes at n_TOF CERN Facility and Its Importance for Stellar Nucleosynthesis. Extraordinary Congress of Polish Physical Society, Oct 2020, Warsaw, Poland. pp.383-388, ⟨10.12693/APhysPolA.139.383⟩. ⟨hal-03235572⟩