TY - JOUR
T1 - Does the relativistic impulse approximation produce sufficient s-wave repulsion for pionic atoms?
AU - Gal, A.
AU - Jennings, B. K.
AU - Friedman, E.
PY - 1992/5/7
Y1 - 1992/5/7
N2 - Ambiguities due to off-shell extrapolation of the πN T-matrix in the application of the relativistic impulse approximation to low-energy pion-nucleus interactions are demonstrated. The extent to which the "missing" s-wave repulsion for pionic atoms is produced by such application is shown to be strongly model dependent by performing a large scale fit to pionic atom data.
AB - Ambiguities due to off-shell extrapolation of the πN T-matrix in the application of the relativistic impulse approximation to low-energy pion-nucleus interactions are demonstrated. The extent to which the "missing" s-wave repulsion for pionic atoms is produced by such application is shown to be strongly model dependent by performing a large scale fit to pionic atom data.
UR - http://www.scopus.com/inward/record.url?scp=0002113473&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(92)90265-6
DO - 10.1016/0370-2693(92)90265-6
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AN - SCOPUS:0002113473
SN - 0370-2693
VL - 281
SP - 11
EP - 15
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -