The lead nucleus as a miniature surrogate for a neutron star

C. J. Horowitz, J. Piekarewicz

Research output: Contribution to journalArticlepeer-review


The nucleus of 208Pb, a system 18 orders of magnitude smaller and 55 orders of magnitude lighter than a neutron star, may be used as a miniature surrogate to establish important correlations between its neutron skin and several neutron-star properties. Indeed, models with a thicker neutron skin in 208Pb generate larger neutron stars that have a lower liquid-to-solid transition density. Further, we illustrate how the correlation between the neutron skin in 208Pb and the radius of a 1.4 solar-mass neutron star may be used to place important constraints on the equation of state of neutron-rich matter and how it may help elucidate the existence of a phase transition at the core of the star.

Original languageEnglish
Pages (from-to)113-121
Number of pages9
JournalActa Physica Hungarica New Series Heavy Ion Physics
Issue number1-4
StatePublished - 2002
Externally publishedYes


  • Equation of state
  • Neutron radii
  • Neutron stars


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