Neutron-proton equilibration in 35 MeV/u collisions of Zn-64,Zn-70+Zn-64,Zn-70 and Zn-64, Ni-64+Zn-64, Ni-64 quantified using triplicate probes Academic Article uri icon


  • 2018 American Physical Society. Previous work has quantified the degree of neutron-proton equilibration in heavy-ion nuclear collisions by observing the convergence of isospin observables (such as the isoscaling parameter ) to an expected value based on similar symmetric reaction systems. We present a new signature of equilibration: the convergence of the isospin asymmetry (as quantified by three isoscaling metrics) of two mirror asymmetric reaction systems toward each other rather than a predefined point. For the reactions of 35 MeV/u Zn64,70+Zn64,70 and Zn64,Ni64+Zn64,Ni64 the neutron-proton equilibration was found to be approximately 80%, and this result is compared directly to previous work.

published proceedings


author list (cited authors)

  • May, L. W., Wakhle, A., McIntosh, A. B., Kohley, Z., Behling, S., Bonasera, A., ... Yennello, S. J.

citation count

  • 8

complete list of authors

  • May, LW||Wakhle, A||McIntosh, AB||Kohley, Z||Behling, S||Bonasera, A||Bonasera, G||Cammarata, P||Hagel, K||Heilborn, L||Jedele, A||Raphelt, A||Manso, A Rodriguez||Souliotis, G||Tripathi, R||Youngs, MD||Zarrella, A||Yennello, SJ

publication date

  • January 2018