323 citations · 2.1k across the 69 of their papers we have counts for
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Medium Effects of Low Energy Pions
E. Friedman
Fits of pion-nucleus potentials to large sets of pionic atom data reveal departures of parameter values from the corresponding free parameters. These medium effects can be qua…
Testing Chiral Dynamics in Pionic Atoms
E. Friedman, A. Gal
The energy dependence of chirally expanded pi N isoscalar and isovector amplitudes b_0(E) and b_1(E) respectively, for zero-momentum off shell pions near threshold, is used to impo…
Antiprotonic Potentials from Global Fits to the PS209 Data
E. Friedman, A. Gal
The experimental results for strong interaction effects in antiprotonic atoms by the PS209 collaboration consist of high quality data for several sequences of isotopes along the pe…
Renormalization of the isovector amplitude in pionic atoms
E. Friedman, A. Gal
The extraction of the isovector s-wave pi N amplitude from pionic atoms is studied with special emphasis on uncertainties and their dependence on the assumptions made regarding the…