The B-0 lifetime was measured with a sample of 23 million B (B) over bar 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) over bar (0)pi (-) decay are reconstructed. The result is tau(B)(0)=1.529+/-0.012(stat )+/-0.029(syst) ps.

Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2002). Measurement of the B-0 lifetime with partially reconstructed B-0 -> D(-)l(+)nu(l) decays. PHYSICAL REVIEW LETTERS, 89(1) [10.1103/PhysRevLett.89.011802].

Measurement of the B-0 lifetime with partially reconstructed B-0 -> D(-)l(+)nu(l) decays

CARPINELLI, Massimo;
2002

Abstract

The B-0 lifetime was measured with a sample of 23 million B (B) over bar 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) over bar (0)pi (-) decay are reconstructed. The result is tau(B)(0)=1.529+/-0.012(stat )+/-0.029(syst) ps.
Articolo in rivista - Articolo scientifico
BABAR detector;
English
Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2002). Measurement of the B-0 lifetime with partially reconstructed B-0 -> D(-)l(+)nu(l) decays. PHYSICAL REVIEW LETTERS, 89(1) [10.1103/PhysRevLett.89.011802].
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