Measurement of the 𝐵<sup>+</sup> and 𝐵<sup>0</sup> meson lifetimes

CDF Collaboration

doi:10.1103/physrevlett.72.3456

Scientific article

English

Measurement of the 𝐵⁺ and 𝐵⁰ meson lifetimes

ContributorsCDF Collaboration

CollaboratorsProduit, Nicolas

Published inPhysical review letters, vol. 72, no. 22, p. 3456-3460

Publication date1994

First online date1994-05-30

Abstract

The lifetimes of the B+ and B0 mesons have been measured using fully reconstructed decays. In a sample of ∼49 600J/ψ→μ+μ− decays recorded with the Collider Detector at Fermilab, 148±16 B+ and 121±16B0 mesons have been reconstructed using the silicon vertex detector. Unbinned likelihood fits to the proper lifetime distributions of these B mesons give τ+=1.61±0.16 (stat)±0.05 (syst) ps, τ0=1.57±0.18 (stat) ±0.08 (syst) ps, and τ+/τ0=1.02±0.16 (stat) ±0.05 (syst).

Keywords

Anti-p p: colliding beams
Colliding beams: anti-p p
Anti-p p: inclusive reaction
B: hadroproduction
Hadroproduction: B
B: nonleptonic decay
Nonleptonic decay: B
B+: lifetime
B0: lifetime
Semiconductor detector: vertex
CDF
Experimental results
Batavia TEVATRON Coll
Anti-p p --> B anything
B --> psi mesons strange meson
Psi mesons --> muon+ muon-
S041T
S042DT1
S042T

Affiliation entities

Not a UNIGE publication

Citation (ISO format)

CDF Collaboration. Measurement of the 𝐵⁺ and 𝐵⁰ meson lifetimes. In: Physical review letters, 1994, vol. 72, n° 22, p. 3456–3460. doi: 10.1103/physrevlett.72.3456

Article (Published version)

Article (Submitted version)

Identifiers

PID : unige:188763
DOI : 10.1103/physrevlett.72.3456

Additional URL for this publicationhttps://link.aps.org/doi/10.1103/PhysRevLett.72.3456

Journal ISSN0031-9007

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Measurement of the 𝐵+ and 𝐵0 meson lifetimes

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Measurement of the 𝐵⁺ and 𝐵⁰ meson lifetimes