A measurement of the average lifetime of b hadrons has been performed with the dipole method on a sample of 260000 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.

D., B., I., D., D., D., P., G., C., G., J. P., L., 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

BOTTIGLI, UBALDO;CIOCCI, MARIA AGNESE;MARROCCHESI, PIER SIMONE;
1993-01-01

Abstract

A measurement of the average lifetime of b hadrons has been performed with the dipole method on a sample of 260000 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.
1993
D., B., I., D., D., D., P., G., C., G., J. P., L., 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].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/36268
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo