Characterizing Neutron-Proton Equilibration in Nuclear Reactions with Subzeptosecond Resolution

Author(s): A. Jedele, A. B. McIntosh, K. Hagel, M. Huang, L. Heilborn, Z. Kohley, L. W. May, E. McCleskey, M. Youngs, A. Zarrella, and S. J. Yennello

The equilibration of nuclei containing a large imbalance of protons and neutrons can occur in $3\times {10}^{-22}$ seconds, according to experiments—important information for models of element-creation in supernovae.

[Phys. Rev. Lett. 118, 062501] Published Fri Feb 10, 2017