Abstract
The Crystal Ball detector at thee + e − storage ring DORIS-II has been used to search for radiativeB meson decays, especially of the typeb→sγ. No monoenergetic γ-lines have been found in the inclusive photon spectrum from У(4S) decays, and upper limits are obtained for radiative decays ofB mesons to various strange mesons and to theD *. Integrating the photon spectrum over the corresponding energy range, we find
at 90% confidence level for the mass range 892 MeV ≦M X ≦2045 MeV.
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Supported by: U.S. Department of Energy, contract No. DE-AC03-81 ER40050 and National Science Foundation, grant No. PHY75-22980 National Science Foundation, grant No. PHY85-12145 U.S. Department of Energy, contract No. DE-AC-02-76ER03066 German Bundesministerium für Forschung und Technologie, contract No. 054 ER 12P(5) German Bundesministerium für Forschung und Technologie, contract No. 054 HH 11P(7) and Deutsche Forschungsgemeinschaft U.S. Department of Energy, contract No. DE-AC02-76ER03064 FOM-NWO U.S. Department of Energy, contract No. DE-AC02-76ER03072 and National Science Foundation, grant No. PHY82-08761 U.S. Department of Energy, contract No. DE-AC03-76SF00326 and National Science Foundation, grant No. PHY81-07396 U.S. Department of Energy, contract No. DE-AC03-76SF00515 German Bundesministerium für Forschung und Technologie, contract No. 054 WU 11P(1)
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Crystal Ball Collaboration., Lesiak, T., Antreasvan, D. et al. Search for radiativeB meson decays. Z. Phys. C - Particles and Fields 55, 33–38 (1992). https://doi.org/10.1007/BF01558287
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DOI: https://doi.org/10.1007/BF01558287