Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV

LHCb Collaboration; R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; L. An; L. Anderlini; J. Anderson; R. Andreassen; M. Andreotti; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; A. Badalov; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; V. Batozskaya; V. Battista; A. Bay; S. Bifani; N. Farley; P. Griffith; I. R. Kenyon; C. Lazzeroni; J. McCarthy; C. J. Parkinson; L. Pescatore; N. K. Watson

doi:10.1007/JHEP12(2014)079

Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV

LHCb Collaboration, R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, J. AndersonR. Andreassen, M. Andreotti, J. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, V. Battista, A. Bay, S. Bifani^*, N. Farley, P. Griffith, I. R. Kenyon, C. Lazzeroni, J. McCarthy, C. J. Parkinson, L. Pescatore, N. K. Watson

^*Corresponding author for this work

Physics and Astronomy

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Abstract

A measurement of the inclusive W → µν production cross-section using data from pp collisions at a centre-of-mass energy of √s = 7 TeV is presented. The analysis is based on an integrated luminosity of about 1.0 fb⁻¹recorded with the LHCb detector. Results are reported for muons with a transverse momentum greater than 20 GeV/c and pseudorapidity between 2.0 and 4.5. The W⁺ and W⁻ production cross-sections are measured to be σW+→µ+ν = 861.0 ± 2.0 ± 11.2 ± 14.7 pb, σW−→µ−−ν = 675.8 ± 1.9 ± 8.8 ± 11.6 pb, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity determination. Cross-section ratios and differential distributions as functions of the muon pseudorapidity are also presented. The ratio of W⁺ to W⁻ cross-sections in the same fiducial kinematic region is determined to be σW+→µ+ν / σW−→µ−ν= 1.274 ± 0.005 ± 0.009, where the uncertainties are statistical and systematic, respectively. Results are in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics.

Original language	English
Article number	79
Number of pages	25
Journal	Journal of High Energy Physics
Volume	2014
Issue number	12
DOIs	https://doi.org/10.1007/JHEP12(2014)079
Publication status	Published - 10 Dec 2014

Keywords

Forward physics
Hadron-Hadron Scattering
QCD

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Newman, P.
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Newman, P., Charlton, D., Hawkes, C., Lazzeroni, C., Nikolopoulos, K., Watson, A., Watson, N. & Wilson, J.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/10/12 → 30/09/16
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ATLAS - UK Tracker Upgrade
Newman, P.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
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Newman, P.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
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Project: Research Councils
Experimental Particle Physics 2009-2014
Newman, P., Charlton, D., Hawkes, C., Watkins, P., Watson, A., Watson, N., Wilson, J. & Lazzeroni, C.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/10/09 → 30/09/12
Project: Research Councils
Experimental Particle Physics 2006-2011
Watkins, P., Charlton, D., Evans, P., Hawkes, C., Newman, P., Watson, A., Watson, N. & Wilson, J.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/10/06 → 30/09/11
Project: Research Councils

Cite this

LHCb Collaboration, Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., ... Watson, N. K. (2014). Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV. Journal of High Energy Physics, 2014(12), Article 79. https://doi.org/10.1007/JHEP12(2014)079

@article{5da439a7b18b434eb3ab18ecd706c8cf,

title = "Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV",

abstract = "A measurement of the inclusive W → µν production cross-section using data from pp collisions at a centre-of-mass energy of √s = 7 TeV is presented. The analysis is based on an integrated luminosity of about 1.0 fb−1 recorded with the LHCb detector. Results are reported for muons with a transverse momentum greater than 20 GeV/c and pseudorapidity between 2.0 and 4.5. The W+ and W− production cross-sections are measured to be σW+→µ+ν = 861.0 ± 2.0 ± 11.2 ± 14.7 pb, σW−→µ−−ν = 675.8 ± 1.9 ± 8.8 ± 11.6 pb, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity determination. Cross-section ratios and differential distributions as functions of the muon pseudorapidity are also presented. The ratio of W+ to W− cross-sections in the same fiducial kinematic region is determined to be σW+→µ+ν / σW−→µ−ν= 1.274 ± 0.005 ± 0.009, where the uncertainties are statistical and systematic, respectively. Results are in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics.",

keywords = "Forward physics, Hadron-Hadron Scattering, QCD",

author = "{LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and S. Bifani and N. Farley and P. Griffith and Kenyon, {I. R.} and C. Lazzeroni and J. McCarthy and Parkinson, {C. J.} and L. Pescatore and Watson, {N. K.}",

year = "2014",

month = dec,

day = "10",

doi = "10.1007/JHEP12(2014)079",

language = "English",

volume = "2014",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "12",

}

LHCb Collaboration, Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Badalov, A, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Bifani, S, Farley, N, Griffith, P, Kenyon, IR, Lazzeroni, C, McCarthy, J, Parkinson, CJ, Pescatore, L & Watson, NK 2014, 'Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV', Journal of High Energy Physics, vol. 2014, no. 12, 79. https://doi.org/10.1007/JHEP12(2014)079

TY - JOUR

T1 - Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV

AU - LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Bifani, S.

AU - Farley, N.

AU - Griffith, P.

AU - Kenyon, I. R.

AU - Lazzeroni, C.

AU - McCarthy, J.

AU - Parkinson, C. J.

AU - Pescatore, L.

AU - Watson, N. K.

PY - 2014/12/10

Y1 - 2014/12/10

N2 - A measurement of the inclusive W → µν production cross-section using data from pp collisions at a centre-of-mass energy of √s = 7 TeV is presented. The analysis is based on an integrated luminosity of about 1.0 fb−1 recorded with the LHCb detector. Results are reported for muons with a transverse momentum greater than 20 GeV/c and pseudorapidity between 2.0 and 4.5. The W+ and W− production cross-sections are measured to be σW+→µ+ν = 861.0 ± 2.0 ± 11.2 ± 14.7 pb, σW−→µ−−ν = 675.8 ± 1.9 ± 8.8 ± 11.6 pb, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity determination. Cross-section ratios and differential distributions as functions of the muon pseudorapidity are also presented. The ratio of W+ to W− cross-sections in the same fiducial kinematic region is determined to be σW+→µ+ν / σW−→µ−ν= 1.274 ± 0.005 ± 0.009, where the uncertainties are statistical and systematic, respectively. Results are in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics.

AB - A measurement of the inclusive W → µν production cross-section using data from pp collisions at a centre-of-mass energy of √s = 7 TeV is presented. The analysis is based on an integrated luminosity of about 1.0 fb−1 recorded with the LHCb detector. Results are reported for muons with a transverse momentum greater than 20 GeV/c and pseudorapidity between 2.0 and 4.5. The W+ and W− production cross-sections are measured to be σW+→µ+ν = 861.0 ± 2.0 ± 11.2 ± 14.7 pb, σW−→µ−−ν = 675.8 ± 1.9 ± 8.8 ± 11.6 pb, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity determination. Cross-section ratios and differential distributions as functions of the muon pseudorapidity are also presented. The ratio of W+ to W− cross-sections in the same fiducial kinematic region is determined to be σW+→µ+ν / σW−→µ−ν= 1.274 ± 0.005 ± 0.009, where the uncertainties are statistical and systematic, respectively. Results are in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics.

KW - Forward physics

KW - Hadron-Hadron Scattering

KW - QCD

UR - http://www.scopus.com/inward/record.url?scp=84930572439&partnerID=8YFLogxK

U2 - 10.1007/JHEP12(2014)079

DO - 10.1007/JHEP12(2014)079

M3 - Article

AN - SCOPUS:84930572439

SN - 1126-6708

VL - 2014

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 12

M1 - 79

ER -

Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV

Abstract

Keywords

ASJC Scopus subject areas

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Projects

PPGP Capital Equipment Call

Birmimgham Experimental Particle Physics Consolidated Grant

ATLAS - UK Tracker Upgrade

Wakeham Efficiency Saving PP

Experimental Particle Physics 2009-2014

Experimental Particle Physics 2006-2011

Cite this