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  • C. Lederer
  • C. Massimi
  • S. Altstadt
  • J. Andrzejewski
  • L. Audouin
  • M. Barbagallo
  • V. Becares
  • F. Becvar
  • F. Belloni
  • E. Berthoumieux
  • J. Billowes
  • V. Boccone
  • D. Bosnar
  • M. Brugger
  • M. Calviani
  • F. Calvino
  • D. Cano-Ott
  • C. Carrapico
  • F. Cerutti
  • E. Chiaveri
  • M. Chin
  • N. Colonna
  • G. Cortes
  • M. A. Cortes-Giraldo
  • M. Diakaki
  • C. Domingo-Pardo
  • I. Duran
  • R. Dressler
  • N. Dzysiuk
  • C. Eleftheriadis
  • A. Ferrari
  • K. Fraval
  • S. Ganesan
  • A. R. Garcia
  • G. Giubrone
  • M. B. Gomez-Hornillos
  • I. F. Goncalves
  • E. Gonzalez-Romero
  • E. Griesmayer
  • C. Guerrero
  • F. Gunsing
  • P. Gurusamy
  • D. G. Jenkins
  • E. Jericha
  • Y. Kadi
  • F. Kaeppeler
  • D. Karadimos
  • N. Kivel
  • P. Koehler
  • T. Rauscher
  • n TOF Collaboration
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Original languageEnglish
Article number022501
Number of pages5
JournalPhysical Review Letters
Journal publication date8 Jan 2013
Volume110
Issue2
DOIs
Publication statusPublished - 8 Jan 2013

Abstract

The Ni-63(n, gamma) 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 = 5-100 keV with uncertainties around 20%. Stellar model calculations for a 25M(circle dot) star show that the new data have a significant effect on the s-process production of Cu-63, Ni-64, and Zn-64 in massive stars, allowing stronger constraints on the Cu yields from explosive nucleosynthesis in the subsequent supernova

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