Phys. Rev. Lett. 77, 1439–1443 (1996)

Measurement of the Λ_b⁰ Lifetime Using Λ_b⁰→Λ_c⁺ℓ^-ν̅

Abstract

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Citing Articles (7)

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F. Abe et al. CDF Collaboration
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Received 19 April 1996; published in the issue dated 19 August 1996

The lifetime of Λ_b⁰ is measured using the semileptonic decay Λ_b⁰→Λ_c⁺ℓ^-ν̅ , where the Λ_c⁺ is reconstructed through its decay Λ_c⁺→pK^-π⁺. The data were collected by the CDF detector at the Tevatron Collider during 1992–1995 and correspond to an integrated luminosity of 110pb^-1 of pp̅ collisions at √s = 1.8TeV. From a fit to the decay length distribution of the Λ_c-lepton system from 197±25 signal events, the lifetime of Λ_b⁰ is measured to be 1.32±0.15±0.07ps.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.77.1439

DOI:

10.1103/PhysRevLett.77.1439

PACS:

14.20.Mr, 13.30.Ce

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Phys. Rev. Lett. 77, 1439–1443 (1996)

Measurement of the Λb0 Lifetime Using Λb0→Λc+ℓ-ν̅

Measurement of the Λ_b⁰ Lifetime Using Λ_b⁰→Λ_c⁺ℓ^-ν̅