Measurement of the b quark forward-backward asymmetry around the Z⁰ peak using an inclusive tag

G Abbiendi; Georgios Anagnostou; Paul Bell; Ian Bloodworth; David Charlton; Christopher Hawkes; Roger Homer; Predrag Jovanovic; Thomas McMahon; Stephen O'Neale; Miriam Watson; Peter Watkins; Alan Watson; Nigel Watson; John Wilson

doi:10.1016/S0370-2693(02)02594-7

Measurement of the b quark forward-backward asymmetry around the Z⁰ peak using an inclusive tag

G Abbiendi, Georgios Anagnostou, Paul Bell, Ian Bloodworth, David Charlton, Christopher Hawkes, Roger Homer, Predrag Jovanovic, Thomas McMahon, Stephen O'Neale, Miriam Watson, Peter Watkins, Alan Watson, Nigel Watson, John Wilson

Physics and Astronomy

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12 Citations (Scopus)

Abstract

The b quark forward-backward asymmetry has been measured using hadronic Z(0) decays collected by the OPAL experiment at LEP. Z(0) --> b (b) over bar decays were selected using a combination of secondary vertex and lepton tags, and the sign of the b quark charge was determined using an inclusive tag based on jet, vertex and kaon charges. The results, corrected to the quark level, are: A(FB)(b)=0.0582 +/- 0.0153 +/- 0.0012 at, roots = 89.50GeV, A(FB)(b)=0.0977 +/- 0.0036 +/- 0.0018 at roots=91.26GeV, A(FB)(b)=0.1221 +/- 0.0123 +/- 0.0025 at roots=92.91GeV, where the first error is statistical and the second systematic in each case. Within the framework of the Standard Model, the result is interpreted as a measurement of the effective weak mixing angle for electrons of sin(2) theta(W)(eff.e) = 0.32305 +/- 0.00068 (C) 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	29-47
Number of pages	19
Journal	Physics Letters B
Volume	546
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)02594-7
Publication status	Published - 17 Oct 2002

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10.1016/S0370-2693(02)02594-7

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Abbiendi, G., Anagnostou, G., Bell, P., Bloodworth, I., Charlton, D., Hawkes, C., Homer, R., Jovanovic, P., McMahon, T., O'Neale, S., Watson, M., Watkins, P., Watson, A., Watson, N., & Wilson, J. (2002). Measurement of the b quark forward-backward asymmetry around the Z⁰ peak using an inclusive tag. Physics Letters B, 546(1-2), 29-47. https://doi.org/10.1016/S0370-2693(02)02594-7

@article{ef470f0119a141849686f755e0baf784,

title = "Measurement of the b quark forward-backward asymmetry around the Z⁰ peak using an inclusive tag",

abstract = "The b quark forward-backward asymmetry has been measured using hadronic Z(0) decays collected by the OPAL experiment at LEP. Z(0) --> b (b) over bar decays were selected using a combination of secondary vertex and lepton tags, and the sign of the b quark charge was determined using an inclusive tag based on jet, vertex and kaon charges. The results, corrected to the quark level, are: A(FB)(b)=0.0582 +/- 0.0153 +/- 0.0012 at, roots = 89.50GeV, A(FB)(b)=0.0977 +/- 0.0036 +/- 0.0018 at roots=91.26GeV, A(FB)(b)=0.1221 +/- 0.0123 +/- 0.0025 at roots=92.91GeV, where the first error is statistical and the second systematic in each case. Within the framework of the Standard Model, the result is interpreted as a measurement of the effective weak mixing angle for electrons of sin(2) theta(W)(eff.e) = 0.32305 +/- 0.00068 (C) 2002 Elsevier Science B.V. All rights reserved.",

author = "G Abbiendi and Georgios Anagnostou and Paul Bell and Ian Bloodworth and David Charlton and Christopher Hawkes and Roger Homer and Predrag Jovanovic and Thomas McMahon and Stephen O'Neale and Miriam Watson and Peter Watkins and Alan Watson and Nigel Watson and John Wilson",

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Abbiendi, G, Anagnostou, G, Bell, P, Bloodworth, I, Charlton, D, Hawkes, C, Homer, R, Jovanovic, P, McMahon, T, O'Neale, S, Watson, M, Watkins, P, Watson, A , Watson, N & Wilson, J 2002, 'Measurement of the b quark forward-backward asymmetry around the Z⁰ peak using an inclusive tag', Physics Letters B, vol. 546, no. 1-2, pp. 29-47. https://doi.org/10.1016/S0370-2693(02)02594-7

TY - JOUR

T1 - Measurement of the b quark forward-backward asymmetry around the Z⁰ peak using an inclusive tag

AU - Abbiendi, G

AU - Anagnostou, Georgios

AU - Bell, Paul

AU - Bloodworth, Ian

AU - Charlton, David

AU - Hawkes, Christopher

AU - Homer, Roger

AU - Jovanovic, Predrag

AU - McMahon, Thomas

AU - O'Neale, Stephen

AU - Watson, Miriam

AU - Watkins, Peter

AU - Watson, Alan

AU - Watson, Nigel

AU - Wilson, John

PY - 2002/10/17

Y1 - 2002/10/17

N2 - The b quark forward-backward asymmetry has been measured using hadronic Z(0) decays collected by the OPAL experiment at LEP. Z(0) --> b (b) over bar decays were selected using a combination of secondary vertex and lepton tags, and the sign of the b quark charge was determined using an inclusive tag based on jet, vertex and kaon charges. The results, corrected to the quark level, are: A(FB)(b)=0.0582 +/- 0.0153 +/- 0.0012 at, roots = 89.50GeV, A(FB)(b)=0.0977 +/- 0.0036 +/- 0.0018 at roots=91.26GeV, A(FB)(b)=0.1221 +/- 0.0123 +/- 0.0025 at roots=92.91GeV, where the first error is statistical and the second systematic in each case. Within the framework of the Standard Model, the result is interpreted as a measurement of the effective weak mixing angle for electrons of sin(2) theta(W)(eff.e) = 0.32305 +/- 0.00068 (C) 2002 Elsevier Science B.V. All rights reserved.

AB - The b quark forward-backward asymmetry has been measured using hadronic Z(0) decays collected by the OPAL experiment at LEP. Z(0) --> b (b) over bar decays were selected using a combination of secondary vertex and lepton tags, and the sign of the b quark charge was determined using an inclusive tag based on jet, vertex and kaon charges. The results, corrected to the quark level, are: A(FB)(b)=0.0582 +/- 0.0153 +/- 0.0012 at, roots = 89.50GeV, A(FB)(b)=0.0977 +/- 0.0036 +/- 0.0018 at roots=91.26GeV, A(FB)(b)=0.1221 +/- 0.0123 +/- 0.0025 at roots=92.91GeV, where the first error is statistical and the second systematic in each case. Within the framework of the Standard Model, the result is interpreted as a measurement of the effective weak mixing angle for electrons of sin(2) theta(W)(eff.e) = 0.32305 +/- 0.00068 (C) 2002 Elsevier Science B.V. All rights reserved.

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U2 - 10.1016/S0370-2693(02)02594-7

DO - 10.1016/S0370-2693(02)02594-7

M3 - Article

VL - 546

SP - 29

EP - 47

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Measurement of the b quark forward-backward asymmetry around the Z⁰ peak using an inclusive tag

Abstract

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