Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector
A measurement of the mass difference between top and anti-top quarks is presented. In a 4.7 fb1 data sample of proton-proton collisions at√s = 7 TeV recorded with the ATLAS detector at the LHC, events consistent with tt production and decay into a single charged lepton final state are reconstructed....
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Elsevier
2014
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| _version_ | 1826258061539409920 |
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| author | Aad, G Abajyan, T Abbott, B Abdallah, J Khalek, SA Abdinov, O Aben, R Abi, B Abolins, M AbouZeid, O Abramowicz, H Abreu, H Abulaiti, Y Acharya, B Adamczyk, L Adams, D Addy, T Adelman, J Adomeit, S Adye, T Aefsky, S Agatonovic-Jovin, T Aguilar-Saavedra, J Agustoni, M Ahlen, S |
| author_facet | Aad, G Abajyan, T Abbott, B Abdallah, J Khalek, SA Abdinov, O Aben, R Abi, B Abolins, M AbouZeid, O Abramowicz, H Abreu, H Abulaiti, Y Acharya, B Adamczyk, L Adams, D Addy, T Adelman, J Adomeit, S Adye, T Aefsky, S Agatonovic-Jovin, T Aguilar-Saavedra, J Agustoni, M Ahlen, S |
| author_sort | Aad, G |
| collection | OXFORD |
| description | A measurement of the mass difference between top and anti-top quarks is presented. In a 4.7 fb1 data sample of proton-proton collisions at√s = 7 TeV recorded with the ATLAS detector at the LHC, events consistent with tt production and decay into a single charged lepton final state are reconstructed. For each event, the mass difference between the top and anti-top quark candidate is calculated. A two b-tag requirement is used in order to reduce the background contribution. A maximum likelihood fit to these per-event mass differences yields δm = mt - mt = 0.67 ± 0.61 (stat) ± 0.41 (syst) GeV, consistent with CPT invariance. © 2013 The Authors. Published by Elsevier B.V. |
| first_indexed | 2024-03-06T18:28:04Z |
| format | Journal article |
| id | oxford-uuid:08aae214-a8e8-4c2d-96b5-85427c33281f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:28:04Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:08aae214-a8e8-4c2d-96b5-85427c33281f2022-03-26T09:14:10ZMeasurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detectorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:08aae214-a8e8-4c2d-96b5-85427c33281fEnglishSymplectic Elements at OxfordElsevier2014Aad, GAbajyan, TAbbott, BAbdallah, JKhalek, SAAbdinov, OAben, RAbi, BAbolins, MAbouZeid, OAbramowicz, HAbreu, HAbulaiti, YAcharya, BAdamczyk, LAdams, DAddy, TAdelman, JAdomeit, SAdye, TAefsky, SAgatonovic-Jovin, TAguilar-Saavedra, JAgustoni, MAhlen, SA measurement of the mass difference between top and anti-top quarks is presented. In a 4.7 fb1 data sample of proton-proton collisions at√s = 7 TeV recorded with the ATLAS detector at the LHC, events consistent with tt production and decay into a single charged lepton final state are reconstructed. For each event, the mass difference between the top and anti-top quark candidate is calculated. A two b-tag requirement is used in order to reduce the background contribution. A maximum likelihood fit to these per-event mass differences yields δm = mt - mt = 0.67 ± 0.61 (stat) ± 0.41 (syst) GeV, consistent with CPT invariance. © 2013 The Authors. Published by Elsevier B.V. |
| spellingShingle | Aad, G Abajyan, T Abbott, B Abdallah, J Khalek, SA Abdinov, O Aben, R Abi, B Abolins, M AbouZeid, O Abramowicz, H Abreu, H Abulaiti, Y Acharya, B Adamczyk, L Adams, D Addy, T Adelman, J Adomeit, S Adye, T Aefsky, S Agatonovic-Jovin, T Aguilar-Saavedra, J Agustoni, M Ahlen, S Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector |
| title | Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector |
| title_full | Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector |
| title_fullStr | Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector |
| title_full_unstemmed | Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector |
| title_short | Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector |
| title_sort | measurement of the mass difference between top and anti top quarks in pp collisions at root s 7 tev using the atlas detector |
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