Elsevier

Physics Letters B

Volume 185, Issues 1–2, 12 February 1987, Pages 218-222
Physics Letters B

Reconstruction of B mesons

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Abstract

B mesons have been reconstructed in five decay channels of the type B→D±nπ(n=1,2,3) using data accumulated by the ARGUS experiment at the e+e storage ring DORIS II at DESY. In total, we find 40 neutral B mesons above a background of 15±6 events with a mass of (5278.2±1.0±3.0) MeV/c2 and 32 charged B mesons above a background of 17±6 events with a mass of (5275.8±1.3±3.0) MeV/c2. The decays B0D∗+ππ0, B0D∗+πππ+, and BD∗+πππ0 have been observed for the first time. We find substantially smaller branching ratios for the decay modes B0D∗+π and BD∗+ππ than previously published by the CLEO collaboration.

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Cited by (0)

1

Weizmann Institute of Science, 76100 Rehovot, Israel.

2

Z Supported by the Minerva Stiftung.

3

Supported by the Bundesministerium für Forschung and Technologie,Bonn, Fed. Rep. Germany.

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