Inclusive semileptonic branching ratios of b hadrons produced in Z decays

Physics

Text available via DOI:

https://doi.org/10.1007/s100520100851
Final published version

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

Published

Standard

Inclusive semileptonic branching ratios of b hadrons produced in Z decays. / ALEPH Collaboration, The; Heister, A.; Bouhova-Thacker, Evelina et al.
In: European Physical Journal C: Particles and Fields, Vol. 22, No. 4, 01.2002, p. 613-626.

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

Harvard

ALEPH Collaboration, T, Heister, A, Bouhova-Thacker, E , Bowdery, C , Finch, A, Foster, F, Hughes, G & Jones, R 2002, 'Inclusive semileptonic branching ratios of b hadrons produced in Z decays', European Physical Journal C: Particles and Fields, vol. 22, no. 4, pp. 613-626. https://doi.org/10.1007/s100520100851

APA

ALEPH Collaboration, T., Heister, A., Bouhova-Thacker, E., Bowdery, C., Finch, A., Foster, F., Hughes, G., & Jones, R. (2002). Inclusive semileptonic branching ratios of b hadrons produced in Z decays. European Physical Journal C: Particles and Fields, 22(4), 613-626. https://doi.org/10.1007/s100520100851

Vancouver

ALEPH Collaboration T, Heister A, Bouhova-Thacker E , Bowdery C , Finch A, Foster F et al. Inclusive semileptonic branching ratios of b hadrons produced in Z decays. European Physical Journal C: Particles and Fields. 2002 Jan;22(4):613-626. doi: 10.1007/s100520100851

Author

ALEPH Collaboration, The ; Heister, A. ; Bouhova-Thacker, Evelina et al. / Inclusive semileptonic branching ratios of b hadrons produced in Z decays. In: European Physical Journal C: Particles and Fields. 2002 ; Vol. 22, No. 4. pp. 613-626.

Bibtex

@article{37bc88d8f0184ddaa6fd5bbf5ed8bd8f,

title = "Inclusive semileptonic branching ratios of b hadrons produced in Z decays",

abstract = "A measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is presented, using four million hadronic events collected by the ALEPH detector from 1991 to 1995. Electrons and muons are selected opposite to b-tagged hemispheres. Two different methods are explored to distinguish the contributions from direct b→Xℓν and cascade b→c→Xℓν decays to the total lepton yield. One is based on the lepton transverse momentum spectrum, the other makes use of the correlation between the charge of the lepton and charge estimators built from tracks in the opposite hemisphere of the event. The latter method reduces the dependence on the modelling of semileptonic b decays. The results obtained by averaging the two techniques areBR(b→Xℓν)=0.1070±0.0010stat±0.0023syst±0.0026model,BR(b→c→Xℓν)=0.0818±0.0015stat±0.0022syst+0.0010−0.0014model.",

author = "{ALEPH Collaboration}, The and A. Heister and Evelina Bouhova-Thacker and Christopher Bowdery and Alexander Finch and Frank Foster and Gareth Hughes and Roger Jones",

year = "2002",

month = jan,

doi = "10.1007/s100520100851",

language = "English",

volume = "22",

pages = "613--626",

journal = "European Physical Journal C: Particles and Fields",

issn = "1434-6044",

publisher = "SPRINGER",

number = "4",

}

RIS

TY - JOUR

T1 - Inclusive semileptonic branching ratios of b hadrons produced in Z decays

AU - ALEPH Collaboration, The

AU - Heister, A.

AU - Bouhova-Thacker, Evelina

AU - Bowdery, Christopher

AU - Finch, Alexander

AU - Foster, Frank

AU - Hughes, Gareth

AU - Jones, Roger

PY - 2002/1

Y1 - 2002/1

N2 - A measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is presented, using four million hadronic events collected by the ALEPH detector from 1991 to 1995. Electrons and muons are selected opposite to b-tagged hemispheres. Two different methods are explored to distinguish the contributions from direct b→Xℓν and cascade b→c→Xℓν decays to the total lepton yield. One is based on the lepton transverse momentum spectrum, the other makes use of the correlation between the charge of the lepton and charge estimators built from tracks in the opposite hemisphere of the event. The latter method reduces the dependence on the modelling of semileptonic b decays. The results obtained by averaging the two techniques areBR(b→Xℓν)=0.1070±0.0010stat±0.0023syst±0.0026model,BR(b→c→Xℓν)=0.0818±0.0015stat±0.0022syst+0.0010−0.0014model.

AB - A measurement of the inclusive semileptonic branching ratios of b hadrons produced in Z decay is presented, using four million hadronic events collected by the ALEPH detector from 1991 to 1995. Electrons and muons are selected opposite to b-tagged hemispheres. Two different methods are explored to distinguish the contributions from direct b→Xℓν and cascade b→c→Xℓν decays to the total lepton yield. One is based on the lepton transverse momentum spectrum, the other makes use of the correlation between the charge of the lepton and charge estimators built from tracks in the opposite hemisphere of the event. The latter method reduces the dependence on the modelling of semileptonic b decays. The results obtained by averaging the two techniques areBR(b→Xℓν)=0.1070±0.0010stat±0.0023syst±0.0026model,BR(b→c→Xℓν)=0.0818±0.0015stat±0.0022syst+0.0010−0.0014model.

U2 - 10.1007/s100520100851

DO - 10.1007/s100520100851

M3 - Journal article

VL - 22

SP - 613

EP - 626

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 4

ER -

Research

Links

Text available via DOI: