New result on the measurement of the direct photon emission in K+→π+π0γ decay
Revised: 16 December 2005
Published online: 9 March 2006
We present a new result on the K+→π+π0γ decay measurement using stopped kaons. The best fit to the decay spectrum comprised of 10 k events gives a branching ratio for the direct photon emission of [3.8±0.8 (stat)±0.7 (syst)]×10-6 in the π+ kinetic energy region of 55 to 90 MeV. This result has been obtained with the assumption that there is no component due to interference with the inner bremsstrahlung.
© Springer-Verlag, 2006