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Measurements of the b baryon lifetime

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Measurements of the b baryon lifetime. / ALEPH Collaboration.
In: Physics Letters B, Vol. 357, No. 4, 1995, p. 685-698.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

ALEPH Collaboration 1995, 'Measurements of the b baryon lifetime', Physics Letters B, vol. 357, no. 4, pp. 685-698. https://doi.org/10.1016/0370-2693(95)00980-Y

APA

ALEPH Collaboration (1995). Measurements of the b baryon lifetime. Physics Letters B, 357(4), 685-698. https://doi.org/10.1016/0370-2693(95)00980-Y

Vancouver

ALEPH Collaboration. Measurements of the b baryon lifetime. Physics Letters B. 1995;357(4):685-698. doi: 10.1016/0370-2693(95)00980-Y

Author

ALEPH Collaboration. / Measurements of the b baryon lifetime. In: Physics Letters B. 1995 ; Vol. 357, No. 4. pp. 685-698.

Bibtex

@article{d1e44f8ca7f34a409b54278b001f6fb1,
title = "Measurements of the b baryon lifetime",
abstract = "Using about 1.5 million hadronic Z decays recorded with the aleph detector, the lifetime of the b baryons has been measured using two independent data samples. From a maximum likelihood fit to the impact parameter distribution of leptons in 519 Λℓ− combinations containing a b baryon sample of 290 decays, the measured b baryon lifetime is τb—baryon = 1.05−0.11+0.12(stat)±0.09(syst) ps. The lifetime of the Λb0 baryon from a maximum likelihood fit to the proper time distribution of 58 Λc+ℓ− candidates containing a Λb0 sample of 44 decays, is τΛb0 = 1.02−0.18+0.23(stat) ± 0.06(syst) ps.",
author = "D. Buskulic and Alexander Finch and {ALEPH Collaboration}",
year = "1995",
doi = "10.1016/0370-2693(95)00980-Y",
language = "English",
volume = "357",
pages = "685--698",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "4",

}

RIS

TY - JOUR

T1 - Measurements of the b baryon lifetime

AU - Buskulic, D.

AU - Finch, Alexander

AU - ALEPH Collaboration

PY - 1995

Y1 - 1995

N2 - Using about 1.5 million hadronic Z decays recorded with the aleph detector, the lifetime of the b baryons has been measured using two independent data samples. From a maximum likelihood fit to the impact parameter distribution of leptons in 519 Λℓ− combinations containing a b baryon sample of 290 decays, the measured b baryon lifetime is τb—baryon = 1.05−0.11+0.12(stat)±0.09(syst) ps. The lifetime of the Λb0 baryon from a maximum likelihood fit to the proper time distribution of 58 Λc+ℓ− candidates containing a Λb0 sample of 44 decays, is τΛb0 = 1.02−0.18+0.23(stat) ± 0.06(syst) ps.

AB - Using about 1.5 million hadronic Z decays recorded with the aleph detector, the lifetime of the b baryons has been measured using two independent data samples. From a maximum likelihood fit to the impact parameter distribution of leptons in 519 Λℓ− combinations containing a b baryon sample of 290 decays, the measured b baryon lifetime is τb—baryon = 1.05−0.11+0.12(stat)±0.09(syst) ps. The lifetime of the Λb0 baryon from a maximum likelihood fit to the proper time distribution of 58 Λc+ℓ− candidates containing a Λb0 sample of 44 decays, is τΛb0 = 1.02−0.18+0.23(stat) ± 0.06(syst) ps.

U2 - 10.1016/0370-2693(95)00980-Y

DO - 10.1016/0370-2693(95)00980-Y

M3 - Journal article

VL - 357

SP - 685

EP - 698

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 4

ER -