Measurement of $B$ hadron lifetimes using $J/\psi$ final states at CDF - INSPIRE

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Measurement of $B$ hadron lifetimes using $J/\psi$ final states at CDF

CDF

Collaboration

Oct, 1997

44 pages

Published in:

Phys.Rev.D 57 (1998) 5382-5401

DOI:

10.1103/PhysRevD.57.5382

PDG:

{{\mathit B}^{\pm}}

Report number:

FERMILAB-PUB-97-352-E,
ANL-HEP-PR-98-105

Experiments:

FNAL-E-0741

View in:

OSTI Information Bridge Server

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Abstract: (APS)

The average bottom-hadron and individual B+, B0, and Bs0 meson lifetimes have been determined using decays with a J/ψ→μ+μ− in the final state. The data sample consists of 110 pb−1 of p¯p collisions at s=1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992–1995. For the average lifetime of B hadrons decaying into J/ψ+X, we obtain 〈τb〉=1.533±0.015(stat)−0.031+0.035(syst)ps. For the B+ and B0 meson lifetimes, we determine τ(B+)=1.68±0.07(stat)±0.02(syst)ps, τ(B0)=1.58±0.09(stat)±0.02(syst)ps, and τ(B+)/τ(B0)=1.06±0.07(stat)±0.02(syst). For the Bs0 meson lifetime, we find τ(Bs0)=1.34−0.19+0.23(stat)±0.05(syst) ps.

anti-p p: colliding beams
anti-p p: inclusive reaction
bottom meson: hadroproduction
bottom meson: cascade decay
bottom meson: lifetime
lifetime: ratio
B+
B0
B/s0
J/psi(3100): leptonic decay

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