Measurement of the B° lifetime with partially reconstructed B° → D*⁻ℓ⁺ νℓ decays

B Aubert; Theresa Harrison; Christopher Hawkes; David Knowles; Stephen O'Neale; Richard Penny; Alan Watson; Nigel Watson

doi:10.1103/PhysRevLett.89.011802

Measurement of the B° lifetime with partially reconstructed B° → D*⁻ℓ⁺ νℓ decays

B Aubert
, Theresa Harrison
, Christopher Hawkes
, David Knowles
, Stephen O'Neale
, Richard Penny
, Alan Watson
, Nigel Watson

Physics and Astronomy

Research output: Contribution to journal › Article

Abstract

The B(0) lifetime was measured with a sample of 23 million BB pairs collected by the BABAR detector at the PEP-II e(+)e(-) storage ring during 1999 and 2000. Events from the semileptonic decay B(0)-->D(*-)l(+)nu(l) have been selected with a partial reconstruction method in which only the charged lepton and the slow pi from the D*--->D(0)pi(-) decay are reconstructed. The result is tau(B(0)) = 1.529+/-0.012(stat)+/-0.029(syst) ps.

Original language	English
Pages (from-to)	011802
Number of pages	1
Journal	Physical Review Letters
Volume	89
Issue number	1
Early online date	1 Jun 2002
DOIs	https://doi.org/10.1103/PhysRevLett.89.011802
Publication status	Published - 1 Jul 2002

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10.1103/PhysRevLett.89.011802

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title = "Measurement of the B° lifetime with partially reconstructed B° → D*⁻ℓ⁺ νℓ decays",

abstract = "The B(0) lifetime was measured with a sample of 23 million BB pairs collected by the BABAR detector at the PEP-II e(+)e(-) storage ring during 1999 and 2000. Events from the semileptonic decay B(0)-->D(*-)l(+)nu(l) have been selected with a partial reconstruction method in which only the charged lepton and the slow pi from the D*--->D(0)pi(-) decay are reconstructed. The result is tau(B(0)) = 1.529+/-0.012(stat)+/-0.029(syst) ps.",

author = "B Aubert and Theresa Harrison and Christopher Hawkes and David Knowles and Stephen O'Neale and Richard Penny and Alan Watson and Nigel Watson",

year = "2002",

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doi = "10.1103/PhysRevLett.89.011802",

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T1 - Measurement of the B° lifetime with partially reconstructed B° → D*⁻ℓ⁺ νℓ decays

AU - Aubert, B

AU - Harrison, Theresa

AU - Hawkes, Christopher

AU - Knowles, David

AU - O'Neale, Stephen

AU - Penny, Richard

AU - Watson, Alan

AU - Watson, Nigel

PY - 2002/7/1

Y1 - 2002/7/1

N2 - The B(0) lifetime was measured with a sample of 23 million BB pairs collected by the BABAR detector at the PEP-II e(+)e(-) storage ring during 1999 and 2000. Events from the semileptonic decay B(0)-->D(*-)l(+)nu(l) have been selected with a partial reconstruction method in which only the charged lepton and the slow pi from the D*--->D(0)pi(-) decay are reconstructed. The result is tau(B(0)) = 1.529+/-0.012(stat)+/-0.029(syst) ps.

AB - The B(0) lifetime was measured with a sample of 23 million BB pairs collected by the BABAR detector at the PEP-II e(+)e(-) storage ring during 1999 and 2000. Events from the semileptonic decay B(0)-->D(*-)l(+)nu(l) have been selected with a partial reconstruction method in which only the charged lepton and the slow pi from the D*--->D(0)pi(-) decay are reconstructed. The result is tau(B(0)) = 1.529+/-0.012(stat)+/-0.029(syst) ps.

U2 - 10.1103/PhysRevLett.89.011802

DO - 10.1103/PhysRevLett.89.011802

M3 - Article

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SN - 1079-7114

VL - 89

SP - 011802

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Measurement of the B° lifetime with partially reconstructed B° → D*⁻ℓ⁺ νℓ decays

Abstract

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