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New result on the measurement of the direct photon emission in K+ --> pi^+ pi^0 gamma decay

M. A. Aliev·Y. Asano·P. Depommier
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Abstract

We present a new result on the K^+ --> pi^+ pi^0 gamma decay measurement using stopped kaons. The best fit to the decay spectrum comprised of 10k events gives a branching ratio for the direct photon emission of [3.8+-0.8(stat)+-0.7(syst)] times 10^{-6} in the pi^+ 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.

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M. A. Aliev, Y. Asano, P. Depommier. 2006-10-19. New result on the measurement of the direct photon emission in K+ --> pi^+ pi^0 gamma decay. https://doi.org/10.1140/epjc%2Fs2006-02492-y

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