Abstract :
The neutron skin of 208Pb has received considerable attention in recent years. A variety of strongly-interacting probes depict a rather consistent picture but pionic probes have not been referred to in this context. We present here neutron-skin values from pionic atoms and from total reaction cross sections of image between 0.7 and 2 GeV/c which fit well into the picture. In addition we show that a neutron-skin for 48Ca can be obtained from existing data on pionic atoms and the result agrees with pion scattering experiments and with the scattering of α particles.
Keywords :
208Pb deduced neutron , proton radii , atomic physics , 48Ca , calculated , analyzed pionic atom level shifts , NUCLEAR REACTIONS , level widths by varying neutron radial paramaters and using de Laat and Powers data sets , c , deduced , Ca , nuclear radii , Pb(?+ , neutron skin , X)Pb(?+ , X) , E at 0.7–2.0 GeV/c , analyzed total ? at relativistic energies varying neutron radial paramaters and using simultaneous fit to Allardyce data , 208Pb , calculated
