A measurement of the average lifetime of b hadrons has been performed with dipole method on a sample of 260 000 hadronic Z decays recorded with the ALEPH detector during 1991. The dipole is the distance between the vertices built in the opposite hemispheres. The mean dipole is extracted from all the events without attempting b enrichment. Comparing the average of the data dipole distribution with a Monte Carlo calibration curve obtained with different b lifetimes, an average b hadron lifetime of 1.51±0.08 ps is extracted.

Buskulic, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J., et al. (1993). Measurement of the b hadron lifetime with the dipole method. PHYSICS LETTERS. SECTION B, 314(3-4), 459-470 [10.1016/0370-2693(93)91265-O].

Measurement of the b hadron lifetime with the dipole method

CARPINELLI, Massimo;
1993

Abstract

A measurement of the average lifetime of b hadrons has been performed with dipole method on a sample of 260 000 hadronic Z decays recorded with the ALEPH detector during 1991. The dipole is the distance between the vertices built in the opposite hemispheres. The mean dipole is extracted from all the events without attempting b enrichment. Comparing the average of the data dipole distribution with a Monte Carlo calibration curve obtained with different b lifetimes, an average b hadron lifetime of 1.51±0.08 ps is extracted.
Articolo in rivista - Articolo scientifico
Physics
English
459
470
12
Buskulic, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J., et al. (1993). Measurement of the b hadron lifetime with the dipole method. PHYSICS LETTERS. SECTION B, 314(3-4), 459-470 [10.1016/0370-2693(93)91265-O].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390418
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