Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV

P. Abreu; Sverker Almehed; Vincent Hedberg; Christina Zacharatou Jarlskog; Göran Jarlskog; Ulf Mjörnmark; Andreas Nygren; Oxana Smirnova; Pavel Tyapkin; N. I. Zimin; M. Zupan; DELPHI Collaboration

doi:10.1016/S0370-2693(01)00453-1

Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV

P. Abreu, Sverker Almehed, Vincent Hedberg, Christina Zacharatou Jarlskog, Göran Jarlskog, Ulf Mjörnmark, Andreas Nygren, Oxana Smirnova, Pavel Tyapkin, N. I. Zimin, M. Zupan, DELPHI Collaboration

Particle and nuclear physics

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Abstract

A measurement of the W mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb-1 and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- → lvlqq′ and W+W- → qq′qq′ channels. The W mass result for the 1998 data set is MW = 80.387 ± 0.087(stat) ± 0.034(syst) ± 0.017(LEP) ± 0.035(FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qq′qq′ channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI Collaboration gives the result MW = 80.359 ± 0.074(stat) ± 0.032(syst) ± 0.017(LEP) ± 0.033(FSI) GeV/c2. The combined value for the W width is λW = 2.266 ± 0.176(stat)± 0.056(syst)± 0.052(FSI) GeV/c2.

Original language	English
Pages (from-to)	159-177
Number of pages	19
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	511
Issue number	2-4
DOIs	https://doi.org/10.1016/S0370-2693(01)00453-1
Publication status	Published - 2001 Jul 5

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Export Date: 16 August 2019

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Abreu, P., Almehed, S., Hedberg, V., Zacharatou Jarlskog, C., Jarlskog, G., Mjörnmark, U., Nygren, A., Smirnova, O., Tyapkin, P., Zimin, N. I., Zupan, M., & DELPHI Collaboration (2001). Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 511(2-4), 159-177. https://doi.org/10.1016/S0370-2693(01)00453-1

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title = "Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV",

abstract = "A measurement of the W mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb-1 and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- → lvlqq′ and W+W- → qq′qq′ channels. The W mass result for the 1998 data set is MW = 80.387 ± 0.087(stat) ± 0.034(syst) ± 0.017(LEP) ± 0.035(FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qq′qq′ channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI Collaboration gives the result MW = 80.359 ± 0.074(stat) ± 0.032(syst) ± 0.017(LEP) ± 0.033(FSI) GeV/c2. The combined value for the W width is λW = 2.266 ± 0.176(stat)± 0.056(syst)± 0.052(FSI) GeV/c2. ",

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author = "P. Abreu and Sverker Almehed and Vincent Hedberg and {Zacharatou Jarlskog}, Christina and G{\"o}ran Jarlskog and Ulf Mj{\"o}rnmark and Andreas Nygren and Oxana Smirnova and Pavel Tyapkin and Zimin, {N. I.} and M. Zupan and {DELPHI Collaboration}",

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doi = "10.1016/S0370-2693(01)00453-1",

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Abreu, P, Almehed, S, Hedberg, V, Zacharatou Jarlskog, C, Jarlskog, G, Mjörnmark, U, Nygren, A, Smirnova, O, Tyapkin, P, Zimin, NI, Zupan, M & DELPHI Collaboration 2001, 'Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 511, no. 2-4, pp. 159-177. https://doi.org/10.1016/S0370-2693(01)00453-1

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T1 - Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV

AU - Abreu, P.

AU - Almehed, Sverker

AU - Hedberg, Vincent

AU - Zacharatou Jarlskog, Christina

AU - Jarlskog, Göran

AU - Mjörnmark, Ulf

AU - Nygren, Andreas

AU - Smirnova, Oxana

AU - Tyapkin, Pavel

AU - Zimin, N. I.

AU - Zupan, M.

AU - DELPHI Collaboration

N1 - Cited By :19 Export Date: 16 August 2019

PY - 2001/7/5

Y1 - 2001/7/5

N2 - A measurement of the W mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb-1 and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- → lvlqq′ and W+W- → qq′qq′ channels. The W mass result for the 1998 data set is MW = 80.387 ± 0.087(stat) ± 0.034(syst) ± 0.017(LEP) ± 0.035(FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qq′qq′ channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI Collaboration gives the result MW = 80.359 ± 0.074(stat) ± 0.032(syst) ± 0.017(LEP) ± 0.033(FSI) GeV/c2. The combined value for the W width is λW = 2.266 ± 0.176(stat)± 0.056(syst)± 0.052(FSI) GeV/c2.

AB - A measurement of the W mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb-1 and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- → lvlqq′ and W+W- → qq′qq′ channels. The W mass result for the 1998 data set is MW = 80.387 ± 0.087(stat) ± 0.034(syst) ± 0.017(LEP) ± 0.035(FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qq′qq′ channel, and LEP represents that arising from the knowledge of the beam energy of the accelerator. Combining this result with those previously published by the DELPHI Collaboration gives the result MW = 80.359 ± 0.074(stat) ± 0.032(syst) ± 0.017(LEP) ± 0.033(FSI) GeV/c2. The combined value for the W width is λW = 2.266 ± 0.176(stat)± 0.056(syst)± 0.052(FSI) GeV/c2.

KW - article

KW - electron

KW - energy

KW - luminance

KW - measurement

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EP - 177

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 - 2-4

ER -

Measurement of the mass and width of the W boson in e+e- collisions at √s = 189 GeV

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