TY - JOUR

T1 - Three-pseudoscalar photon interactions in chiral perturbation theory

AU - Bijnens, Johan

AU - Bramon, Albert

AU - Cornet, Fernando

PY - 1990/3/22

Y1 - 1990/3/22

N2 - We have calculated the next to leading corrections to the processes γπ- → π0π- and η → π+π-γ in chiral perturbation theory. The loop diagrams are divergent, requiring the contributions from the O(p6) lagrangian. The finite parts of the coefficients of the O(p6) terms are calculated assuming their saturation by the vector meson contribution. These corrections improve the agreement between the theoretical predictions and the experimental data. © 1990.

AB - We have calculated the next to leading corrections to the processes γπ- → π0π- and η → π+π-γ in chiral perturbation theory. The loop diagrams are divergent, requiring the contributions from the O(p6) lagrangian. The finite parts of the coefficients of the O(p6) terms are calculated assuming their saturation by the vector meson contribution. These corrections improve the agreement between the theoretical predictions and the experimental data. © 1990.

U2 - 10.1016/0370-2693(90)91212-T

DO - 10.1016/0370-2693(90)91212-T

M3 - Article

VL - 237

SP - 488

EP - 494

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 3-4

ER -