Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions
The normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the t[¯ over t] + 1-jet system. This distribution can be used for a precise determination of the top-quark mass since gluon ra...
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| Format: | Article |
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Springer Nature
2018
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| Online Access: | http://hdl.handle.net/1721.1/117391 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811082013084483584 |
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| author | Taylor, Frank E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E |
| author_sort | Taylor, Frank E |
| collection | MIT |
| description | The normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the t[¯ over t] + 1-jet system. This distribution can be used for a precise determination of the top-quark mass since gluon radiation depends on the mass of the quarks. The experimental analysis is based on proton-proton collision data collected by the ATLAS detector at the LHC with a centre-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.6 fb[superscript −1]. The selected events were identified using the lepton+jets top-quark-pair decay channel, where lepton refers to either an electron or a muon. The observed distribution is compared to a theoretical prediction at next-to-leading-order accuracy in quantum chromodynamics using the pole-mass scheme. With this method, the measured value of the top-quark pole mass, m[subscript t[superscript pole]], is:m[superscript pole][subscript t]=173.7±1.5stat.±1.4syst.−0.5+1.0(theory)GeV. This result represents the most precise measurement of the top-quark pole mass to date.[Figure not available: see fulltext.] |
| first_indexed | 2024-09-23T11:55:59Z |
| format | Article |
| id | mit-1721.1/117391 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:55:59Z |
| publishDate | 2018 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | mit-1721.1/1173912022-10-01T07:04:57Z Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E The normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the t[¯ over t] + 1-jet system. This distribution can be used for a precise determination of the top-quark mass since gluon radiation depends on the mass of the quarks. The experimental analysis is based on proton-proton collision data collected by the ATLAS detector at the LHC with a centre-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.6 fb[superscript −1]. The selected events were identified using the lepton+jets top-quark-pair decay channel, where lepton refers to either an electron or a muon. The observed distribution is compared to a theoretical prediction at next-to-leading-order accuracy in quantum chromodynamics using the pole-mass scheme. With this method, the measured value of the top-quark pole mass, m[subscript t[superscript pole]], is:m[superscript pole][subscript t]=173.7±1.5stat.±1.4syst.−0.5+1.0(theory)GeV. This result represents the most precise measurement of the top-quark pole mass to date.[Figure not available: see fulltext.] United States. Department of Energy National Science Foundation (U.S.) 2018-08-17T14:11:41Z 2018-08-17T14:11:41Z 2015-10 2015-08 2018-05-07T13:55:52Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 http://hdl.handle.net/1721.1/117391 The ATLAS collaboration, et al. “Determination of the Top-Quark Pole Mass Using t[ ¯ over t] + 1-Jet Events Collected with the ATLAS Experiment in 7 TeV Pp Collisions.” Journal of High Energy Physics, vol. 2015, no. 10, Oct. 2015. © 2015 The Authors https://orcid.org/0000-0002-7586-7253 http://dx.doi.org/10.1007/JHEP10(2015)121 Journal of High Energy Physics Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer Nature Springer |
| spellingShingle | Taylor, Frank E Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
| title | Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
| title_full | Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
| title_fullStr | Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
| title_full_unstemmed | Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
| title_short | Determination of the top-quark pole mass using t [¯ over t] + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions |
| title_sort | determination of the top quark pole mass using t ¯ over t 1 jet events collected with the atlas experiment in 7 tev pp collisions |
| url | http://hdl.handle.net/1721.1/117391 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke determinationofthetopquarkpolemassusingtovert1jeteventscollectedwiththeatlasexperimentin7tevppcollisions |