Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis
Nuclear Experiment
2013-04-12 v1 Solar and Stellar Astrophysics
Abstract
The Ni() cross section has been measured for the first time at the neutron time-of-flight facility n\_TOF at CERN from thermal neutron energies up to 200 keV. In total, capture kernels of 12 (new) resonances were determined. Maxwellian Averaged Cross Sections were calculated for thermal energies from kT = 5 keV to 100 keV with uncertainties around 20%. Stellar model calculations for a 25 M star show that the new data have a significant effect on the -process production of Cu, Ni, and Zn in massive stars, allowing stronger constraints on the Cu yields from explosive nucleosynthesis in the subsequent supernova.
Keywords
Cite
@article{arxiv.1304.3310,
title = {Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis},
author = {C. Lederer and C. Massimi and S. Altstadt and J. Andrzejewski and L. Audouin and M. Barbagallo and V. Bécares and F. Bevá and F. Belloni and E. Berthoumieux and J. Billowes and V. Boccone and D. Bosnar and M. Brugger and M. Calviani and F. Calviño and D. Cano-Ott and C. Carrapiço and F. Cerutti and E. Chiaveri and M. Chin and N. Colonna and G. Cortés and M. A. Cortés-Giraldo and M. Diakaki and C. Domingo-Pardo and I. Duran and R. Dressler and N. Dzysiuk and C. Eleftheriadis and A. Ferrari and K. Fraval and S. Ganesan and A. R. García and G. Giubrone and M. B. Gómez-Hornillos and I. F. Gonçalves and E. González-Romero and E. Griesmayer and C. Guerrero and F. Gunsing and P. Gurusamy and D. G. Jenkins and E. Jericha and Y. Kadi and F. Käppeler and D. Karadimos and N. Kivel and P. Koehler and M. Kokkoris and G. Korschinek and M. Krtika and J. Kroll and C. Langer and H. Leeb and L. S. Leong and R. Losito and A. Manousos and J. Marganiec and T. Martínez and P. F. Mastinu and M. Mastromarco and M. Meaze and E. Mendoza and A. Mengoni and P. M. Milazzo and F. Mingrone and M. Mirea and W. Mondelaers and C. Paradela and A. Pavlik and J. Perkowski and M. Pignatari and A. Plompen and J. Praena and J. M. Quesada and T. Rauscher and R. Reifarth and A. Riego and F. Roman and C. Rubbia and R. Sarmento and P. Schillebeeckx and S. Schmidt and D. Schumann and G. Tagliente and J. L. Tain and D. Tarrío and L. Tassan-Got and A. Tsinganis and S. Valenta and G. Vannini and V. Variale and P. Vaz and A. Ventura and R. Versaci and M. J. Vermeulen and V. Vlachoudis and R. Vlastou and A. Wallner and T. Ware and M. Weigand and C. Weiß and T. J. Wright and P. Zugec},
journal= {arXiv preprint arXiv:1304.3310},
year = {2013}
}