Measurement of A**b(FB) using inclusive b hadron decays

Physics

Text available via DOI:

https://doi.org/10.1007/s100520100812
Final published version

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

Published

Standard

Measurement of A**b(FB) using inclusive b hadron decays. / ALEPH Collaboration, The; Heister, A.; Bouhova-Thacker, Evelina et al.
In: European Physical Journal C: Particles and Fields, Vol. 22, No. 2, 11.2001, p. 201-215.

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 2001, 'Measurement of A**b(FB) using inclusive b hadron decays', European Physical Journal C: Particles and Fields, vol. 22, no. 2, pp. 201-215. https://doi.org/10.1007/s100520100812

APA

ALEPH Collaboration, T., Heister, A., Bouhova-Thacker, E., Bowdery, C., Finch, A., Foster, F., Hughes, G., & Jones, R. (2001). Measurement of A**b(FB) using inclusive b hadron decays. European Physical Journal C: Particles and Fields, 22(2), 201-215. https://doi.org/10.1007/s100520100812

Vancouver

ALEPH Collaboration T, Heister A, Bouhova-Thacker E , Bowdery C , Finch A, Foster F et al. Measurement of A**b(FB) using inclusive b hadron decays. European Physical Journal C: Particles and Fields. 2001 Nov;22(2):201-215. doi: 10.1007/s100520100812

Author

ALEPH Collaboration, The ; Heister, A. ; Bouhova-Thacker, Evelina et al. / Measurement of A**b(FB) using inclusive b hadron decays. In: European Physical Journal C: Particles and Fields. 2001 ; Vol. 22, No. 2. pp. 201-215.

Bibtex

@article{889d8076fba14503af41dfa49b7c095c,

title = "Measurement of A**b(FB) using inclusive b hadron decays",

abstract = "Based on a sample of four million events collected by ALEPH from 1991 to 1995, a measurement of the forward-backward asymmetry in Z→bb¯ decays using inclusive final states is presented. High-performance tagging of bb¯ events in a wide angular range is achieved using neural network techniques. An optimal hemisphere charge estimator is built by merging primary and secondary vertex information, leading kaon identification and jet charge in a neural network. The average charge asymmetry, the flavour tagging efficiencies and mean b-hemisphere charges are measured from data and used to extract the pole b asymmetry in the Standard ModelA0,bFB=0.1011±0.0027(stat)±0.0012(syst),corresponding to a value of the effective weak mixing angle ofsin2θeffW=0.23189±0.00056.",

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 = "2001",

month = nov,

doi = "10.1007/s100520100812",

language = "English",

volume = "22",

pages = "201--215",

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

issn = "1434-6044",

publisher = "SPRINGER",

number = "2",

}

RIS

TY - JOUR

T1 - Measurement of A**b(FB) using inclusive b hadron 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 - 2001/11

Y1 - 2001/11

N2 - Based on a sample of four million events collected by ALEPH from 1991 to 1995, a measurement of the forward-backward asymmetry in Z→bb¯ decays using inclusive final states is presented. High-performance tagging of bb¯ events in a wide angular range is achieved using neural network techniques. An optimal hemisphere charge estimator is built by merging primary and secondary vertex information, leading kaon identification and jet charge in a neural network. The average charge asymmetry, the flavour tagging efficiencies and mean b-hemisphere charges are measured from data and used to extract the pole b asymmetry in the Standard ModelA0,bFB=0.1011±0.0027(stat)±0.0012(syst),corresponding to a value of the effective weak mixing angle ofsin2θeffW=0.23189±0.00056.

AB - Based on a sample of four million events collected by ALEPH from 1991 to 1995, a measurement of the forward-backward asymmetry in Z→bb¯ decays using inclusive final states is presented. High-performance tagging of bb¯ events in a wide angular range is achieved using neural network techniques. An optimal hemisphere charge estimator is built by merging primary and secondary vertex information, leading kaon identification and jet charge in a neural network. The average charge asymmetry, the flavour tagging efficiencies and mean b-hemisphere charges are measured from data and used to extract the pole b asymmetry in the Standard ModelA0,bFB=0.1011±0.0027(stat)±0.0012(syst),corresponding to a value of the effective weak mixing angle ofsin2θeffW=0.23189±0.00056.

U2 - 10.1007/s100520100812

DO - 10.1007/s100520100812

M3 - Journal article

VL - 22

SP - 201

EP - 215

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 2

ER -

Research

Links

Text available via DOI: