TY - JOUR
T1 - Constituent-quark and baryon loops in pseudoscalar-meson transitions
AU - Ametller, Ll
AU - Ayala, C.
AU - Bramon, A.
PY - 1984/1/1
Y1 - 1984/1/1
N2 - Predictions for the coupling, the pion charge radius r+2, the q2 dependence of the pion decay constant near q2=0 [f(0)], and the ratio describing radiative pion decay are obtained in the context of two related models: the constituent-quark model and a baryon-loop model with nf=2, 3, or 4 flavors. All these models lead to two relations among the four above-mentioned parameters, which are satisfied by the data. A sort of equivalence or duality for the two models is observed, particularly for nf=4. © 1984 The American Physical Society.
AB - Predictions for the coupling, the pion charge radius r+2, the q2 dependence of the pion decay constant near q2=0 [f(0)], and the ratio describing radiative pion decay are obtained in the context of two related models: the constituent-quark model and a baryon-loop model with nf=2, 3, or 4 flavors. All these models lead to two relations among the four above-mentioned parameters, which are satisfied by the data. A sort of equivalence or duality for the two models is observed, particularly for nf=4. © 1984 The American Physical Society.
U2 - 10.1103/PhysRevD.29.916
DO - 10.1103/PhysRevD.29.916
M3 - Article
SN - 0556-2821
VL - 29
SP - 916
EP - 920
JO - Physical Review D
JF - Physical Review D
IS - 5
ER -