Title of article
Measurement of the multiplicity of gluons splitting to bottom quark pairs in hadronic Z0 decays
Author/Authors
P. Abreu، نويسنده , , W. Adam، نويسنده , , T. Adye، نويسنده , , I. Ajinenko، نويسنده , , G.D. Alekseev، نويسنده , , R. Alemany، نويسنده , , P.P. Allport، نويسنده , , S. Almehed، نويسنده , , U. Amaldi، نويسنده , , S. Amato، نويسنده , , P. Andersson، نويسنده , , A. Andreazza، نويسنده , , P. Antilogus، نويسنده , , W-D. Apel، نويسنده , , B. ?sman، نويسنده , , J-E. Augustin، نويسنده , , A. Augustinus، نويسنده , , P. Baillon، نويسنده , , P. Bambade، نويسنده , , F. Barao، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1997
Pages
13
From page
202
To page
214
Abstract
An inclusive measurement of the average multiplicity of bb pairs from gluons, gbb, in hadronic Z0 events collected by the DELPHI experiment at LEP, is presented. A counting technique, based on jet b-tagging in 4-jet events, has been used. Looking for secondary bottom production in events with production of any primary flavour, by requiring two b-tagged jets in well defined topological configurations, gave gbb = (0.21 ± 0.11 (stat) ± 0.09 (syst))%. This result was checked with a different method designed to select events with four b quarks in the final state. Agreement within the errors was found.
Journal title
PHYSICS LETTERS B
Serial Year
1997
Journal title
PHYSICS LETTERS B
Record number
908499
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