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A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays

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A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays. / OPAL Collaboration.
In: European Physical Journal C: Particles and Fields, Vol. 9, No. 1, 06.1999, p. 1-9.

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

Harvard

OPAL Collaboration 1999, 'A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays', European Physical Journal C: Particles and Fields, vol. 9, no. 1, pp. 1-9. https://doi.org/10.1007/s100530050388

APA

OPAL Collaboration (1999). A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays. European Physical Journal C: Particles and Fields, 9(1), 1-9. https://doi.org/10.1007/s100530050388

Vancouver

OPAL Collaboration. A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays. European Physical Journal C: Particles and Fields. 1999 Jun;9(1):1-9. doi: 10.1007/s100530050388

Author

OPAL Collaboration. / A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays. In: European Physical Journal C: Particles and Fields. 1999 ; Vol. 9, No. 1. pp. 1-9.

Bibtex

@article{1f82d4a280074a05bf769c857855c8d6,
title = "A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays",
abstract = "The product branching ratio, f(b→Λb)⋅BR(Λb→ΛX)f(b→Λb)⋅BR(Λb→ΛX) , where ΛbΛb denotes any weakly-decaying b–baryon, has been measured using the OPAL detector at LEP. ΛbΛb 's are selected by the presence of energetic ΛΛ particles in bottom events tagged by the presence of displaced secondary vertices. A fit to the momenta of the ΛΛ particles separates signal from B meson and fragmentation backgrounds. The measured product branching ratio is f(b → Λb) · BR(Λb → ΛX) = (2.67) ± 0.38(stat)+0.67−0.60(sys))%. Combined with a previous OPAL measurement, one obtains f(b → Λb) · BR(Λb → ΛX) = (3.50) ± 0.32(stat) ± 0.35(sys))%.",
author = "Vakhtang Kartvelishvili and {OPAL Collaboration}",
year = "1999",
month = jun,
doi = "10.1007/s100530050388",
language = "English",
volume = "9",
pages = "1--9",
journal = "European Physical Journal C: Particles and Fields",
issn = "1434-6044",
publisher = "SPRINGER",
number = "1",

}

RIS

TY - JOUR

T1 - A measurement of the product branching ratio f(b→Λb)⋅BR(Λb→ΛX) in Z0 decays

AU - Kartvelishvili, Vakhtang

AU - OPAL Collaboration

PY - 1999/6

Y1 - 1999/6

N2 - The product branching ratio, f(b→Λb)⋅BR(Λb→ΛX)f(b→Λb)⋅BR(Λb→ΛX) , where ΛbΛb denotes any weakly-decaying b–baryon, has been measured using the OPAL detector at LEP. ΛbΛb 's are selected by the presence of energetic ΛΛ particles in bottom events tagged by the presence of displaced secondary vertices. A fit to the momenta of the ΛΛ particles separates signal from B meson and fragmentation backgrounds. The measured product branching ratio is f(b → Λb) · BR(Λb → ΛX) = (2.67) ± 0.38(stat)+0.67−0.60(sys))%. Combined with a previous OPAL measurement, one obtains f(b → Λb) · BR(Λb → ΛX) = (3.50) ± 0.32(stat) ± 0.35(sys))%.

AB - The product branching ratio, f(b→Λb)⋅BR(Λb→ΛX)f(b→Λb)⋅BR(Λb→ΛX) , where ΛbΛb denotes any weakly-decaying b–baryon, has been measured using the OPAL detector at LEP. ΛbΛb 's are selected by the presence of energetic ΛΛ particles in bottom events tagged by the presence of displaced secondary vertices. A fit to the momenta of the ΛΛ particles separates signal from B meson and fragmentation backgrounds. The measured product branching ratio is f(b → Λb) · BR(Λb → ΛX) = (2.67) ± 0.38(stat)+0.67−0.60(sys))%. Combined with a previous OPAL measurement, one obtains f(b → Λb) · BR(Λb → ΛX) = (3.50) ± 0.32(stat) ± 0.35(sys))%.

U2 - 10.1007/s100530050388

DO - 10.1007/s100530050388

M3 - Journal article

VL - 9

SP - 1

EP - 9

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 1

ER -