TY  - JOUR
AU  - Bernard, V.
AU  - Kaiser, N.
AU  - Meissner, U.G.
TI  - The pion charge radius from charged pion electroproduction
JO  - Physical review / C
VL  - 62
SN  - 0556-2813
CY  - Woodbury, NY
PB  - Inst.
M1  - PreJuSER-28749
SP  - S
PY  - 2000
N1  - Record converted from VDB: 12.11.2012
AB  - We analyze a low-energy theorem of threshold pion electroproduction which allows one to determine the charge radius of the pion. We show that at the same order where the radius appears, pion loops induce a correction to the momentum dependence of the longitudinal dipole amplitude L-0+((-)). This model-independent correction amounts to an increase of the pion charge radius squared from the electroproduction data by about 0.27 fm(2). It sheds light on the apparent discrepancy between the recent determination of the pion radius from electroproduction data and the one based on pion-electron scattering.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000088714000071
UR  - https://juser.fz-juelich.de/record/28749
ER  -