Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis.

@article{Lederer2013NeutronCC,
  title={Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis.},
  author={Claudia Lederer and C. Massimi and Sebastian Altstadt and Janusz Andrzejewski and Laurent Audouin and M. Barbagallo and V. B{\'e}cares and Franti{\vs}ek Be{\vc}v{\'a}ř and Fabio Belloni and Eric Berthoumieux and Jonathan Billowes and Vittorio Boccone and Damir Bosnar and Markus Brugger and Marco Calviani and F. Calvi{\~n}o and Daniel Cano-Ott and C. Carrapiço and Francesco Cerutti and E. Chiaveri and Mary P. W. Chin and N. Colonna and G. Cortes and Miguel Antonio Cort{\'e}s-Giraldo and Maria Diakaki and C{\'e}sar Domingo-Pardo and Ignacio Durán and R. Dressler and Natalia Dzysiuk and Christos Eleftheriadis and Arnaud Ferrari and K. Fraval and Srinivasan Ganesan and A. R. Garcı́a and Giuseppe Giubrone and M. B. G{\'o}mez-Hornillos and Isabel Maria Ferro Goncalves and Enrique M. Gonz{\'a}lez-Romero and Erich Griesmayer and C. Guerrero and F. Gunsing and P. Gurusamy and David G. Jenkins and Erwin Jericha and Yacine Kadi and Franz Käppeler and Darren Karadimos and Nikolay Kivel and Paul E. Koehler and Michael Kokkoris and G. Korschinek and M. Krti{\vc}ka and Jeri Kroll and Christoph Langer and H. Leeb and Lou Sai Leong and Roberto Losito and Athanasios Manousos and Justyna Marganiec and Trinitario Martinez and Pierfrancesco Mastinu and Mario Mastromarco and Moinul Haque Meaze and Emilio Mendoza and Alberto Mengoni and Paolo Milazzo and Federica Mingrone and Mihail Mirea and Wim Mondelaers and Carlos Paradela and A. Pavl{\'i}k and J. Perkowski and Marco Pignatari and Arjan J. M. Plompen and Javier Praena and Jose Manuel Villalba Quesada and Thomas Rauscher and Rene Reifarth and Albert Riego and F. Roman and Carlo Rubbia and Ra{\'u}l Sarmento and Peter Schillebeeckx and Sebastian Schmidt and Dorothea Schumann and G. Tagliente and J. L. Taı́n and Diego Tarrio and L. Tassan-got and A. Tsinganis and S. Valenta and Gianni Vannini and V Variale and Pedro Vaz and Alberto Ventura and Roberto Versaci and M.J. Vermeulen and V. Vlachoudis and R. Vlastou and Anton Wallner and T. C. Ware and M. Weigand and C. Wei{\ss} and T. Wright and Petar Žugec},
  journal={Physical review letters},
  year={2013},
  volume={110 2},
  pages={
          022501
        }
}
The 63Ni(n,γ) 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⊙ star show that the new data have a significant effect on the s-process production of 63Cu, 64Ni, and 64Zn in… 

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References

SHOWING 1-10 OF 76 REFERENCES
Performance of the neutron time-of-flight facility n_TOF at CERN
Abstract.The neutron time-of-flight facility n_TOF features a white neutron source produced by spallation through 20GeV/c protons impinging on a lead target. The facility, aiming primarily at the
Updated Users' Guide for SAMMY Multilevel R-matrix Fits to Neutron Data Using Bayes' Equation
In 1980 the multilevel multichannel R-matrix code SAMMY was released for use in analysis of neutron-induced cross section data at the Oak Ridge Electron Linear Accelerator. Since that time, SAMMY has
Effect of irradiation dose, storage time and temperature on the ESR signal in irradiated oat, corn and wheat.
Applied Radiation and Isotopes
Indoor radon (Rn) concentrations were measured in Paarl homes by means of electret ion chambers. The concentrations varied between 28 and 465 Bq m . The average values (Bq m ) found in houses on the
"J."
however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)
APPL
TLDR
A prototype probability package named APPL (A Probability Programming Language) is presented that can be used to manipulate random variables and examples illustrate its use.
Letters
We all know that doctors make the worst patients because they always laughingly tell us so. But how do we rate at taking our own medicine?
Astroph
  • J. 710, 1557-1577
  • 2010
in Proceedings of EFNUDAT Fast Neutrons—Scientific Workshop on Neutron Measurements
  • Theory & Applications, Geel, Belgium, 2009
  • 2006
...
...