The lifetime of the B(s)0 has been measured in a data sample of 889000 hadronic events recorded with the ALEPH detector at LEP. After background subtraction 30.8 +/- 6.9 events are attributed to the semileptonic decay of the B(s)0 to a D(s)- and an opposite-sign lepton. A maximum-likelihood fit to the distribution of the proper times of these events yields a B(s)0 lifetime of tau(B)s = 1.92 (-0.35)+0.45 +/- 0.04 ps.

D., B., I., D., D., D., P., G., C., G., J. P., L., et al. (1994). Measurement of the B(s)0 Lifetime. PHYSICS LETTERS. SECTION B, 322(3), 275-286 [10.1016/0370-2693(94)91120-7].

Measurement of the B(s)0 Lifetime

BOTTIGLI, UBALDO;CIOCCI, MARIA AGNESE;MARROCCHESI, PIER SIMONE;
1994-01-01

Abstract

The lifetime of the B(s)0 has been measured in a data sample of 889000 hadronic events recorded with the ALEPH detector at LEP. After background subtraction 30.8 +/- 6.9 events are attributed to the semileptonic decay of the B(s)0 to a D(s)- and an opposite-sign lepton. A maximum-likelihood fit to the distribution of the proper times of these events yields a B(s)0 lifetime of tau(B)s = 1.92 (-0.35)+0.45 +/- 0.04 ps.
1994
D., B., I., D., D., D., P., G., C., G., J. P., L., et al. (1994). Measurement of the B(s)0 Lifetime. PHYSICS LETTERS. SECTION B, 322(3), 275-286 [10.1016/0370-2693(94)91120-7].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/36152
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