Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector
A measurement of the mass of the W boson is presented based on proton–proton collision data recorded in 2011 at a centre-of-mass energy of 7 TeV with the ATLAS detector at the LHC, and corresponding to $4.6~\hbox {fb}^{-1}$ of integrated luminosity. The selected data sample consists of $7.8\times...
| Main Authors: | , , , , |
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| Format: | Journal article |
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Springer Verlag
2018
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| _version_ | 1797102447091515392 |
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| author | Aaboud, M Aad, G Abbott, B Hays, C ATLAS Collaboration |
| author_facet | Aaboud, M Aad, G Abbott, B Hays, C ATLAS Collaboration |
| author_sort | Aaboud, M |
| collection | OXFORD |
| description | A measurement of the mass of the W boson is presented based on proton–proton collision data recorded in 2011 at a centre-of-mass energy of 7 TeV with the ATLAS detector at the LHC, and corresponding to $4.6~\hbox {fb}^{-1}$ of integrated luminosity. The selected data sample consists of $7.8\times 10^6$ candidates in the $W\rightarrow \mu \nu$ channel and $5.9\times 10^6$ candidates in the $W\rightarrow e \nu$ channel. The $W$-boson mass is obtained from template fits to the reconstructed distributions of the charged lepton transverse momentum and of the W boson transverse mass in the electron and muon decay channels, yielding $\begin{aligned} \nonumber m_W = 80370&\pm 7~(\text {stat.}) \pm 11 (\text {exp. syst.}) \\&\pm 14~(\text {mod. syst.})~\text {MeV} \\ = 80370&\pm 19\,\text {MeV}, \end{aligned}$ where the first uncertainty is statistical, the second corresponds to the experimental systematic uncertainty, and the third to the physics-modelling systematic uncertainty. A measurement of the mass difference between the $W^+$ and $W^-$ bosons yields $m_{W^+}-m_{W^-} = -\,29 \pm 28 MeV$. |
| first_indexed | 2024-03-07T06:06:10Z |
| format | Journal article |
| id | oxford-uuid:edecb5f5-a74c-4297-b6b1-adea687b72b0 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:06:10Z |
| publishDate | 2018 |
| publisher | Springer Verlag |
| record_format | dspace |
| spelling | oxford-uuid:edecb5f5-a74c-4297-b6b1-adea687b72b02022-03-27T11:28:47ZMeasurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detectorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:edecb5f5-a74c-4297-b6b1-adea687b72b0Symplectic Elements at OxfordSpringer Verlag2018Aaboud, MAad, GAbbott, BHays, CATLAS CollaborationA measurement of the mass of the W boson is presented based on proton–proton collision data recorded in 2011 at a centre-of-mass energy of 7 TeV with the ATLAS detector at the LHC, and corresponding to $4.6~\hbox {fb}^{-1}$ of integrated luminosity. The selected data sample consists of $7.8\times 10^6$ candidates in the $W\rightarrow \mu \nu$ channel and $5.9\times 10^6$ candidates in the $W\rightarrow e \nu$ channel. The $W$-boson mass is obtained from template fits to the reconstructed distributions of the charged lepton transverse momentum and of the W boson transverse mass in the electron and muon decay channels, yielding $\begin{aligned} \nonumber m_W = 80370&\pm 7~(\text {stat.}) \pm 11 (\text {exp. syst.}) \\&\pm 14~(\text {mod. syst.})~\text {MeV} \\ = 80370&\pm 19\,\text {MeV}, \end{aligned}$ where the first uncertainty is statistical, the second corresponds to the experimental systematic uncertainty, and the third to the physics-modelling systematic uncertainty. A measurement of the mass difference between the $W^+$ and $W^-$ bosons yields $m_{W^+}-m_{W^-} = -\,29 \pm 28 MeV$. |
| spellingShingle | Aaboud, M Aad, G Abbott, B Hays, C ATLAS Collaboration Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector |
| title | Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector |
| title_full | Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector |
| title_fullStr | Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector |
| title_full_unstemmed | Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector |
| title_short | Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector |
| title_sort | measurement of the w boson mass in pp collisions at root s 7 tev with the atlas detector |
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