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Strange b baryon production and lifetime in Z decays

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Strange b baryon production and lifetime in Z decays. / ALEPH Collaboration.
In: Physics Letters B, Vol. 384, No. 1-4, 1996, p. 449-460.

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

Harvard

ALEPH Collaboration 1996, 'Strange b baryon production and lifetime in Z decays', Physics Letters B, vol. 384, no. 1-4, pp. 449-460. https://doi.org/10.1016/0370-2693(96)00925-2

APA

ALEPH Collaboration (1996). Strange b baryon production and lifetime in Z decays. Physics Letters B, 384(1-4), 449-460. https://doi.org/10.1016/0370-2693(96)00925-2

Vancouver

ALEPH Collaboration. Strange b baryon production and lifetime in Z decays. Physics Letters B. 1996;384(1-4):449-460. doi: 10.1016/0370-2693(96)00925-2

Author

ALEPH Collaboration. / Strange b baryon production and lifetime in Z decays. In: Physics Letters B. 1996 ; Vol. 384, No. 1-4. pp. 449-460.

Bibtex

@article{8a5cb1f8f0d54f0285adb854c50f92e5,
title = "Strange b baryon production and lifetime in Z decays",
abstract = "In a data sample of approximately four million hadronic Z decays recorded with the ALEPH detector from 1990 to 1995, a search for the strange b baryon Ξb is performed with a study of Ξ-lepton correlations. Forty-four events with same sign Ξ−ℓ− combinations are found whereas 8.4 are expected based on the rate of opposite sign Ξ−ℓ+ combinations. This significant excess is interpreted as evidence for Ξb semileptonic decays. The measured product branching ratio is per lepton species, averaged over electrons and muons, with Xc a charmed baryon. The Ξb lifetime is measured to be τΞb = 1.35−0.28+0.37(stat)−0.17+0.15(syst) ps.",
author = "D. Buskulic and Alexander Finch and {ALEPH Collaboration}",
year = "1996",
doi = "10.1016/0370-2693(96)00925-2",
language = "English",
volume = "384",
pages = "449--460",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "1-4",

}

RIS

TY - JOUR

T1 - Strange b baryon production and lifetime in Z decays

AU - Buskulic, D.

AU - Finch, Alexander

AU - ALEPH Collaboration

PY - 1996

Y1 - 1996

N2 - In a data sample of approximately four million hadronic Z decays recorded with the ALEPH detector from 1990 to 1995, a search for the strange b baryon Ξb is performed with a study of Ξ-lepton correlations. Forty-four events with same sign Ξ−ℓ− combinations are found whereas 8.4 are expected based on the rate of opposite sign Ξ−ℓ+ combinations. This significant excess is interpreted as evidence for Ξb semileptonic decays. The measured product branching ratio is per lepton species, averaged over electrons and muons, with Xc a charmed baryon. The Ξb lifetime is measured to be τΞb = 1.35−0.28+0.37(stat)−0.17+0.15(syst) ps.

AB - In a data sample of approximately four million hadronic Z decays recorded with the ALEPH detector from 1990 to 1995, a search for the strange b baryon Ξb is performed with a study of Ξ-lepton correlations. Forty-four events with same sign Ξ−ℓ− combinations are found whereas 8.4 are expected based on the rate of opposite sign Ξ−ℓ+ combinations. This significant excess is interpreted as evidence for Ξb semileptonic decays. The measured product branching ratio is per lepton species, averaged over electrons and muons, with Xc a charmed baryon. The Ξb lifetime is measured to be τΞb = 1.35−0.28+0.37(stat)−0.17+0.15(syst) ps.

U2 - 10.1016/0370-2693(96)00925-2

DO - 10.1016/0370-2693(96)00925-2

M3 - Journal article

VL - 384

SP - 449

EP - 460

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-4

ER -