Abstract
Background: Recently, the cluster radioactivity of heavy nuclei decaying to was successfully used to constrain the density slope of the symmetry energy at saturation density .
Purpose: By using well-measured experimental decay energy and half-life, proton radioactivity is proposed to further constrain in this work.
Method: From the Hugenholtz–Van Hove theorem, is found to be directly related to the magnitude of the symmetry potential, which can be extracted from the proton radioactivity within the density-dependent cluster model.
Results: By investigating the radioactivity of proton emitters with large isospin asymmetry, the value of the density slope is found to be MeV.
- Received 7 July 2016
- Revised 13 September 2016
DOI:https://doi.org/10.1103/PhysRevC.94.044322
©2016 American Physical Society