The average lifetime of B hadrons has been measured by the ALEPH experiment at LEP. Events containing B hadrons are selected by the identification of leptons with high transverse momentum in hadronic Z decays, and the lifetime is extracted from a fit to the impact parameter distribution of the lepton tracks. From a sample of 1.7×105 hadronic Z decays a lifetime of 1.29±0.06±0.10 ps is measured.

Measurement of the B hadron lifetime / D. Decamp, B. Deschizeaux, C. Goy, J.-P. Lees, M.-N. Minard, R. Alemany, J.M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll. Garrido, P. Mato, R. Miquel, Ll.M. Mir, S. Orteu, A. Pacheco, J.A. Perlas, E. Tubau, M.G. Catanesi, D. Creanza, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 257:(1991), pp. 492-504. [10.1016/0370-2693(91)91927-N]

Measurement of the B hadron lifetime

FOCARDI, ETTORE;
1991

Abstract

The average lifetime of B hadrons has been measured by the ALEPH experiment at LEP. Events containing B hadrons are selected by the identification of leptons with high transverse momentum in hadronic Z decays, and the lifetime is extracted from a fit to the impact parameter distribution of the lepton tracks. From a sample of 1.7×105 hadronic Z decays a lifetime of 1.29±0.06±0.10 ps is measured.
1991
257
492
504
D. Decamp;B. Deschizeaux;C. Goy;J.-P. Lees;M.-N. Minard;R. Alemany;J.M. Crespo;M. Delfino;E. Fernandez;V. Gaitan;Ll. Garrido;P. Mato;R. M...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/638091
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