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Author Hebeler, K. ♦ Lattimer, J. M. ♦ Pethick, C. J. ♦ Schwenk, A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ♦ ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ ASTROPHYSICS ♦ CHIRALITY ♦ EQUATIONS OF STATE ♦ EXTRAPOLATION ♦ MANY-BODY PROBLEM ♦ MASS ♦ NEUTRON STARS ♦ NEUTRONS ♦ NUCLEAR MATTER ♦ QUANTUM FIELD THEORY ♦ BARYONS ♦ ELEMENTARY PARTICLES ♦ EQUATIONS ♦ FERMIONS ♦ FIELD THEORIES ♦ HADRONS ♦ MATHEMATICAL SOLUTIONS ♦ MATTER ♦ NUCLEONS ♦ NUMERICAL SOLUTION ♦ PARTICLE PROPERTIES ♦ PHYSICS ♦ STARS
Abstract We show that microscopic calculations based on chiral effective field theory interactions constrain the properties of neutron-rich matter below nuclear densities to a much higher degree than is reflected in commonly used equations of state. Combined with observed neutron star masses, our results lead to a radius R=9.7-13.9 km for a 1.4M{sub {center_dot}} star, where the theoretical range is due, in about equal amounts, to uncertainties in many-body forces and to the extrapolation to high densities.
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 2010-10-15
Publisher Place United States
Journal Physical Review Letters
Volume Number 105
Issue Number 16


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