Development of the Off-line Analysis Code for GODDESS.

POSTER

Abstract

Determining (n,$\gamma )$ cross sections on unstable nuclei is important for understanding the r-process that is theorized to occur in supernovae and neutron-star mergers. However, (n,$\gamma )$ reactions are difficult to measure directly because of the short lifetime of the involved neutron rich nuclei. A possible surrogate for the (n,$\gamma )$ reaction is the (d,p$\gamma )$ reaction; the measurement of these reactions in inverse kinematics is part of the scope of GODDESS --- Gammasphere ORRUBA (Oak Ridge Rutgers University Barrel Array): Dual Detectors for Experimental Structure Studies. The development of an accurate and efficient off-line analysis code for GODDESS experiments is not only essential, but also provides a unique opportunity to create an analysis code designed specifically for transfer reaction experiments. The off-line analysis code has been developed to produce histograms from the binary data file to determine how to best sort events. Recent developments in the off-line analysis code will be presented as well as details on the energy and position calibrations for the ORRUBA detectors.

Authors

  • Heather Garland

    Gettysburg College

  • J. A. Cizewski

    Rutgers Univ., Rutgers University, Rutgers Univ

  • Alex Lepailleur

    Rutgers University

  • David Walters

    Rutgers University

  • Steven Pain

    Oak Ridge Nat'l Lab., Oak Ridge National Laboratory

  • K. Smith

    Univ. of Tennessee Knoxville, University of Tennessee, University of Tennessee, Knoxville, Univ., of Tennessee, University of Tennessee Knoxville