New result of the measurement of the direct photon emission in K+ ---> pi+ pi0 gamma decay
Nov, 200513 pages
Published in:
- Eur.Phys.J.C 46 (2006) 61-67
e-Print:
- hep-ex/0511060 [hep-ex]
PDG: (DE)
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Abstract: (arXiv)
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.- K+: radiative decay
- at rest
- photon: direct production
- K+: branching ratio
- anomaly: chiral
- angular distribution: (pi+ pi0)
- photon: energy spectrum
- pi+: momentum
- experimental results
- KEK PS
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