logo Master en Física Nuclear y de Partículas y sus aplicaciones
Astrofísica Nuclear 		 curso
2014/2015
 
 Topic 11:  Measurement of the Neutron Radius of 208Pb, implications for the descripion of neutron stars

             The value of the neutron radius (Rn) of 208Pb has important implications for models of nuclear structure and astrophysics. There is a strong 
             correlation between Rn of 208Pb and the pressure of neutron matter P at densities near 0.1 fm-3 (about 2=3 of nuclear density). A larger P
             will push neutrons out against surface tension and increase Rn . Therefore, measuring Rn constrains the equation of state (EOS), the pressure
             as a function of density, of neutron matter. The correlation between Rn and the radius of a neutron star rNS is also very interesting. In general,
             a larger Rn implies a stiffer EOS, with a larger pressure, that will also suggest rNS is larger.




            Guideline

            1. Motivation: stelar scenarios, role of the EOS in the description of neutron stars.

             2. Description of the experiment: accelerator, experimental setup.

             3. Discussion of the results.
 

            Bibliography

             - S. Abrahamyan et al., Phys. Rev. Lett. 108, 112502 (2012)