• Featured in Physics
  • Editors' Suggestion

Gamow-Teller Transition Strengths from Ni56

M. Sasano, G. Perdikakis, R. G. T. Zegers, Sam M. Austin, D. Bazin, B. A. Brown, C. Caesar, A. L. Cole, J. M. Deaven, N. Ferrante, C. J. Guess, G. W. Hitt, R. Meharchand, F. Montes, J. Palardy, A. Prinke, L. A. Riley, H. Sakai, M. Scott, A. Stolz, L. Valdez, and K. Yako
Phys. Rev. Lett. 107, 202501 – Published 7 November 2011
Physics logo See Viewpoint: Recreating a Stellar Electron Catch

Abstract

A new technique to measure (p,n) charge-exchange reactions in inverse kinematics at intermediate energies on unstable isotopes was successfully developed and used to study the Ni56(p,n) reaction at 110MeV/u. Gamow-Teller transition strengths from Ni56 leading to Cu56 were obtained and compared with shell-model predictions in the pf shell using the KB3G and GXPF1A interactions. The calculations with the GXPF1A interaction reproduce the experimental strength distribution much better than the calculations that employed the KB3G interaction, indicating deficiencies in the spin-orbit and proton-neutron residual potentials for the latter. The results are important for improving the description of electron-capture rates on nuclei in the iron region, which are important for modeling the late evolution of core-collapse and thermonuclear supernovae.

  • Figure
  • Figure
  • Figure
  • Received 2 August 2011
  • Publisher error corrected 19 December 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.202501

© 2011 American Physical Society

Corrections

19 December 2011

Viewpoint

Key Image

Recreating a Stellar Electron Catch

Published 7 November 2011

Experimentalists can now determine rates of electron capture in unstable nuclei, providing crucial information for star collapse simulations.

See more in Physics

Authors & Affiliations

M. Sasano1,2, G. Perdikakis1,2, R. G. T. Zegers1,2,3, Sam M. Austin1,2, D. Bazin1, B. A. Brown1,2,3, C. Caesar4, A. L. Cole5, J. M. Deaven1,2,3, N. Ferrante6, C. J. Guess7,2, G. W. Hitt8, R. Meharchand1,2,3, F. Montes1,2, J. Palardy6, A. Prinke1,2,3, L. A. Riley6, H. Sakai9, M. Scott1,2,3, A. Stolz1, L. Valdez1,2,3, and K. Yako10

  • 1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA
  • 2Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
  • 3Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
  • 4GSI Darmstadt, Helmholtz-Zentrum für Schwerionenforschung, D-64291, Darmstadt, Germany
  • 5Physics Department, Kalamazoo College, Kalamazoo, Michigan 49006, USA
  • 6Department of Physics and Astronomy, Ursinus College, Collegeville, Pennsylvania 19426, USA
  • 7Department of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
  • 8Khalifa University of Science, Technology & Research, 127788 Abu Dhabi, United Arab Emirates
  • 9RIKEN Nishina Center, Wako, 351-0198, Japan
  • 10Department of Physics, University of Tokyo, Tokyo, 113-0033, Japan

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 107, Iss. 20 — 11 November 2011

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×