Article ID Journal Published Year Pages File Type
1836015 Nuclear Physics A 2014 10 Pages PDF
Abstract

A general algorithm for handling the energy dependence of meson–nucleon amplitudes in the nuclear medium has been recently applied to antikaons and to eta mesons. Here we test this approach on πN amplitudes in pionic atoms where direct comparison can be made with ample experimental results. Applying this algorithm to a large-scale fit of 100 pionic-atom data points across the periodic table, which also include the ‘deeply-bound’ states in Sn and Pb, reaffirms earlier conclusions on the density-dependent renormalization of the πN   threshold isovector amplitude b1b1, or equivalently the renormalization of the pion decay constant fπfπ in the nuclear medium.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
Authors
, ,