First Evidence and Measurement of B_s^(*) barB_s^(*) Production at the Upsilon(5S)

Details First Evidence and Measurement of B_s^(*) barB_s^(*) Production at the Upsilon(5S) First Evidence and Measurement of B_s^(*) barB_s^(*) Production at the Upsilon(5S)

2005-08-23

arxiv.org/abs/hep-ex/0508047v2

Phys.Rev.Lett.95:261801,2005

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2005/, Submitted to PRL

Scientific paper

10.1103/PhysRevLett.95.261801

We use data collected by the CLEO III detector at CESR on the Upsilon(5S)
resonance to measure the inclusive yield of Ds mesons. Comparing with data
taken on the Upsilon(4S), which decays into lighter B mesons, we make a model
dependent estimate of the ratio of Bs(*)anti-Bs(*) to the total b anti-b quark
pair production at the Upsilon(5S) energy of (16.0+/-2.6+/-5.8)%.

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