On theoretical uncertainties of the W angular distribution in W-pair production at LEP2 energies

R. Brunelière; A. Denner; S. Dittmaier; S. Jadach; S. Jézéquel; W. Placzek; M. Roth; M. Skrzypek; D. Wackeroth; B. F.L. Ward; Z. Was

doi:10.1016/S0370-2693(02)01561-7

On theoretical uncertainties of the W angular distribution in W-pair production at LEP2 energies

R. Brunelière
, A. Denner
, S. Dittmaier
, S. Jadach
, S. Jézéquel
, W. Placzek
, M. Roth
, M. Skrzypek
, D. Wackeroth
, B. F.L. Ward
, Z. Was

Physics

Université de Savoie
Paul Scherrer Institute
German Electron Synchrotron
Polish Academy of Sciences
CERN
Jagiellonian University in Kraków
Karlsruhe Institute of Technology
Max Planck Institute for Physics (Werner Heisenberg Institute)
University of Tennessee
SLAC National Accelerator Laboratory

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling λ = λ_γ = λ_Z at LEP2 energies for the tandem of the Monte Carlo event generators KoralW and YFSWW3 and for the Monte Carlo event generator RacoonWW. Exploiting numerical results of these programs and cross-checks with experimental fitting procedures, we estimate that the theoretical uncertainty of the value of λ due to electroweak corrections, as obtained at LEP2 with the help of these programs, is ∼ 0.005, about half of the expected experimental error for the combined LEP2 experiments (∼ 0.010). We use certain idealized event selections; however, we argue that these results are valid for realistic LEP2 measurements.

Original language	English
Pages (from-to)	75-84
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	533
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)01561-7
State	Published - May 2 2002

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Brunelière, R., Denner, A., Dittmaier, S., Jadach, S., Jézéquel, S., Placzek, W., Roth, M., Skrzypek, M., Wackeroth, D., Ward, B. F. L., & Was, Z. (2002). On theoretical uncertainties of the W angular distribution in W-pair production at LEP2 energies. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 533(1-2), 75-84. https://doi.org/10.1016/S0370-2693(02)01561-7

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title = "On theoretical uncertainties of the W angular distribution in W-pair production at LEP2 energies",

abstract = "We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling λ = λγ = λZ at LEP2 energies for the tandem of the Monte Carlo event generators KoralW and YFSWW3 and for the Monte Carlo event generator RacoonWW. Exploiting numerical results of these programs and cross-checks with experimental fitting procedures, we estimate that the theoretical uncertainty of the value of λ due to electroweak corrections, as obtained at LEP2 with the help of these programs, is ∼ 0.005, about half of the expected experimental error for the combined LEP2 experiments (∼ 0.010). We use certain idealized event selections; however, we argue that these results are valid for realistic LEP2 measurements.",

author = "R. Bruneli{\`e}re and A. Denner and S. Dittmaier and S. Jadach and S. J{\'e}z{\'e}quel and W. Placzek and M. Roth and M. Skrzypek and D. Wackeroth and Ward, \{B. F.L.\} and Z. Was",

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Brunelière, R, Denner, A, Dittmaier, S, Jadach, S, Jézéquel, S, Placzek, W, Roth, M, Skrzypek, M, Wackeroth, D, Ward, BFL & Was, Z 2002, 'On theoretical uncertainties of the W angular distribution in W-pair production at LEP2 energies', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 533, no. 1-2, pp. 75-84. https://doi.org/10.1016/S0370-2693(02)01561-7

TY - JOUR

T1 - On theoretical uncertainties of the W angular distribution in W-pair production at LEP2 energies

AU - Brunelière, R.

AU - Denner, A.

AU - Dittmaier, S.

AU - Jadach, S.

AU - Jézéquel, S.

AU - Placzek, W.

AU - Roth, M.

AU - Skrzypek, M.

AU - Wackeroth, D.

AU - Ward, B. F.L.

AU - Was, Z.

PY - 2002/5/2

Y1 - 2002/5/2

N2 - We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling λ = λγ = λZ at LEP2 energies for the tandem of the Monte Carlo event generators KoralW and YFSWW3 and for the Monte Carlo event generator RacoonWW. Exploiting numerical results of these programs and cross-checks with experimental fitting procedures, we estimate that the theoretical uncertainty of the value of λ due to electroweak corrections, as obtained at LEP2 with the help of these programs, is ∼ 0.005, about half of the expected experimental error for the combined LEP2 experiments (∼ 0.010). We use certain idealized event selections; however, we argue that these results are valid for realistic LEP2 measurements.

AB - We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling λ = λγ = λZ at LEP2 energies for the tandem of the Monte Carlo event generators KoralW and YFSWW3 and for the Monte Carlo event generator RacoonWW. Exploiting numerical results of these programs and cross-checks with experimental fitting procedures, we estimate that the theoretical uncertainty of the value of λ due to electroweak corrections, as obtained at LEP2 with the help of these programs, is ∼ 0.005, about half of the expected experimental error for the combined LEP2 experiments (∼ 0.010). We use certain idealized event selections; however, we argue that these results are valid for realistic LEP2 measurements.

UR - https://www.scopus.com/pages/publications/0037007554

U2 - 10.1016/S0370-2693(02)01561-7

DO - 10.1016/S0370-2693(02)01561-7

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SN - 0370-2693

VL - 533

SP - 75

EP - 84

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

On theoretical uncertainties of the W angular distribution in W-pair production at LEP2 energies

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