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Nuclear Seminars 2015 Fall


  Title: ANCs at sub-Coulomb energies to constrain key α-capture reaction rates
  Speaker: Dr. Melina Avila
  Institute: Argonne National Laboratory
  Date: Monday, August 24, 2015
  Time: 4:00 - 5:00 pm EST
  Place: Nieuwland Science Hall, Room 124

  Abstract:

Many important α-particle induced reactions can only be measured indirectly due to small cross section at energies of astrophysical interest. Extracting the Asymptotic Normalization Coefficients (ANCs) using sub-Coulomb α-transfer reactions can be used as an effective method to determine properties of near-threshold resonances. This will constrain and drastically limit the uncertainties related to extrapolations procedures for key astrophysical reactions. We have applied this valuable tool to investigate the important α-capture reactions 12C(α, γ)16O and 13C(α, n)16O. Results and the implication to the astrophysical rates will be discussed.


Topic

Date

Speaker

ANCs at sub-Coulomb energies to
constrain key α-capture reaction rates
August 24 Dr. Melina Avila
Argonne National Laboratory
Labor Day September 7
TBA Sept. 28 Dr. Antonio Villari
NSCL / MSU
TBA October 5 Mr. Sean Kuvin
Florida State University
TBA October 12 Prof. Sandrine Courtin
Institut Pluridisciplinaire Hubert Curien
Strasbourg, France
Discovery of Supernova-produced 60Fe
in the Earth's Fossil Record
October 19 Dr. Shawn Bishop
Technical University of Munich
Germany
TBA November 9 Prof. Bradley Meyer
Clemson University
TBA Nov. 16 Dr. Kyle Leach
TRIUMF, Canada
TBA Nov. 23 Dr. Farheen Naqvi
NSCL / MSU








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