A New Measurement of the Radiative Ke3 Branching Ratio and Photon Spectrum
Abstract
We present a preliminary report on a new measurement of the radiative Ke3 branching ratio and the first study of the photon spectrum in this decay. We find BR(Ke3γ , E*γ >30 GeV, θ* eγ >20°)/BR (Ke3) = 0.911 ± 0.009 (stat.)+0.021-0.010 (syst.)%. Our measurement of the spectrum is consistent with inner bremsstrahlung only as the source of photons at the 2σ level.
- Publication:
-
Acta Physica Polonica B
- Pub Date:
- October 2000
- DOI:
- 10.48550/arXiv.hep-ex/0009032
- arXiv:
- arXiv:hep-ex/0009032
- Bibcode:
- 2000AcPPB..31.2133B
- Keywords:
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- High Energy Physics - Experiment
- E-Print:
- 5 pages, 4 figures, proceedings paper from Meson 2000, Cracow, Poland, May 2000