PT Journal
AU Tamii, Aea
   Rubio, B
TI Complete Electric Dipole Response and the Neutron Skin in (208)Pb
SO Physical Review Letters
PY 2011
BP 062502
VL 107
IS 6
DI 10.1103/PhysRevLett.107.062502
AB A benchmark experiment on (208)Pb shows that polarized proton inelastic scattering at very forward angles including 0 degrees is a powerful tool for high-resolution studies of electric dipole (E1) and spin magnetic dipole (M1) modes in nuclei over a broad excitation energy range to test up-to-date nuclear models. The extracted E1 polarizability leads to a neutron skin thickness r(skin) = 0.156(-0.021)(+0.025) fm in (208)Pb derived within a mean-field model [Phys. Rev. C 81, 051303 (2010)], thereby constraining the symmetry energy and its density dependence relevant to the description of neutron stars.
ER