Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV
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[superscript −1] recorded with the LHCb detector. Results are reported for muons with a t...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2015
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| Online Access: | http://hdl.handle.net/1721.1/94595 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
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| author | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author_sort | Counts, Ian Thomas Hunt |
| collection | MIT |
| description | 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[superscript −1] recorded with the LHCb detector. Results are reported for muons with a transverse momentum greater than 20 [GeV over c] and pseudorapidity between 2.0 and 4.5. The W [superscript +] and W [superscript −] production cross-sections are measured to be
σW[superscript +]→μ[superscript +]ν=861.0±2.0±11.2±14.7pb,
σW[superscript −]→μ[superscript −] [bar over ν] = 675.8±1.9±8.8±11.6pb,
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 [superscript +] to W [superscript −] cross-sections in the same fiducial kinematic region is determined to be
σW [superscript +] → μ [superscript +] ν [over σW [superscript −] → μ [superscript −] [bar over 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. |
| first_indexed | 2024-09-23T08:55:13Z |
| format | Article |
| id | mit-1721.1/94595 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:55:13Z |
| publishDate | 2015 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/945952023-02-26T04:21:54Z Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Counts, Ian Thomas Hunt Ilten, Philip James Williams, M. 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[superscript −1] recorded with the LHCb detector. Results are reported for muons with a transverse momentum greater than 20 [GeV over c] and pseudorapidity between 2.0 and 4.5. The W [superscript +] and W [superscript −] production cross-sections are measured to be σW[superscript +]→μ[superscript +]ν=861.0±2.0±11.2±14.7pb, σW[superscript −]→μ[superscript −] [bar over ν] = 675.8±1.9±8.8±11.6pb, 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 [superscript +] to W [superscript −] cross-sections in the same fiducial kinematic region is determined to be σW [superscript +] → μ [superscript +] ν [over σW [superscript −] → μ [superscript −] [bar over 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. National Science Foundation (U.S.) 2015-02-18T17:07:13Z 2015-02-18T17:07:13Z 2014-12 2014-08 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/94595 Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Measurement of the Forward W Boson Cross-Section in Pp Collisions at √s = 7 TeV.” J. High Energ. Phys. 2014, no. 12 (December 2014). https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 en_US http://dx.doi.org/10.1007/JHEP12(2014)079 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV |
| title | Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV |
| title_full | Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV |
| title_fullStr | Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV |
| title_full_unstemmed | Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV |
| title_short | Measurement of the forward W boson cross-section in pp collisions at √s = 7 TeV |
| title_sort | measurement of the forward w boson cross section in pp collisions at √s 7 tev |
| url | http://hdl.handle.net/1721.1/94595 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
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