A measurement of the fraction of hadronic Z decays in which a gluon splits into a pair, , is presented using data collected by ALEPH from 1992 to 1995 at the Z resonance. The selection is based on four-jet events. Events are selected by means of topological cuts and a lifetime tag. The result is .

A measurement of the gluon splitting rate into B antiB pairs in hadronic Z decays / R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, J.-P. Lees, A. Lucotte, E. Merle, M.-N. Minard, J.-Y. Nief, B. Pietrzyk, R. Alemany, G. Boix, M.P. Casado, M. Chmeissani, J.M. Crespo, M. Delfino, E. Fernandez, M. Fernandez-Bosman, Ll. Garrido, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 434:(1998), pp. 437-450. [10.1016/S0370-2693(98)00850-8]

A measurement of the gluon splitting rate into B antiB pairs in hadronic Z decays

FOCARDI, ETTORE;CIULLI, VITALIANO;
1998

Abstract

A measurement of the fraction of hadronic Z decays in which a gluon splits into a pair, , is presented using data collected by ALEPH from 1992 to 1995 at the Z resonance. The selection is based on four-jet events. Events are selected by means of topological cuts and a lifetime tag. The result is .
1998
434
437
450
R. Barate;D. Buskulic;D. Decamp;P. Ghez;C. Goy;J.-P. Lees;A. Lucotte;E. Merle;M.-N. Minard;J.-Y. Nief;B. Pietrzyk;R. Alemany;G. Boix;M.P....espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/639093
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