Volume 78, Number 3, May 2007
Article Number 32001
Number of page(s) 5
Section Nuclear Physics
Published online 18 April 2007
EPL, 78 (2007) 32001
DOI: 10.1209/0295-5075/78/32001

The hyperon neutron star mean-field model

I. Bednarek and R. Manka

Department of Astrophysics and Cosmology, Institute of Physics, University of Silesia - Uniwersytecka 4, PL-40-007 Katowice, Poland

received 18 September 2006; accepted in final form 15 March 2007; published May 2007
published online 18 April 2007

The properties of strange neutron stars have been studied with the use of the parameter sets stemming from the effective field theory. The impact of the strength of hyperon interactions on neutron star masses has been analyzed. The inclusion of additional nonlinear meson interaction terms together with the strong hyperon-hyperon interaction leads to the existence of additional stable stellar configurations.

26.60.+c - Nuclear matter aspects of neutron stars.

© Europhysics Letters Association 2007