Direct top-quark decay width measurement in the t(t)over-bar lepton+jets channel at root \(s\)=8 TeV with the ATLAS experiment
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- This paper presents a direct measurement of the decay width of the top quark using t (t) over bar events in the lepton+jets final state. The data sample was collected by the ATLAS detector at the LHC in proton-proton collisions at a centre-of-mass energy of 8 TeV and corresponds to an integrated luminosity of 20.2 fb(-1). The decay width of the top quark is measured using a template fit to distributions of kinematic observables associated with the hadronically and semileptonically decaying top quarks. The result, Gamma(t) = 1.76 +/- 0.33This paper presents a direct measurement of the decay width of the top quark using t (t) over bar events in the lepton+jets final state. The data sample was collected by the ATLAS detector at the LHC in proton-proton collisions at a centre-of-mass energy of 8 TeV and corresponds to an integrated luminosity of 20.2 fb(-1). The decay width of the top quark is measured using a template fit to distributions of kinematic observables associated with the hadronically and semileptonically decaying top quarks. The result, Gamma(t) = 1.76 +/- 0.33 (stat.) (+0.79)(-0.68) (syst.) GeV for a top-quark mass of 172.5 GeV, is consistent with the prediction of the Standard Model.…
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| URN: | urn:nbn:de:bvb:20-opus-226805 |
|---|---|
| Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
| Institute der Universität: | Fakultät für Physik und Astronomie / Physikalisches Institut |
| Sprache der Veröffentlichung: | Englisch |
| Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | European Physical Journal C |
| Erscheinungsjahr: | 2018 |
| Band / Jahrgang: | 78 |
| Heft / Ausgabe: | 129 |
| Seitenangabe: | 1-30 |
| Originalveröffentlichung / Quelle: | Eur. Phys. J. C (2018) 78:129. doi:10.1140/epjc/s10052-018-5595-5 |
| DOI: | https://doi.org/10.1140/epjc/s10052-018-5595-5 |
| Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Freie Schlagwort(e): | Cross-Section; Hadron Colliders; Pair Production; Parton Distributions; pp Collisions |
| Datum der Freischaltung: | 05.01.2024 |
| Urhebende Körperschaft: | The ATLAS Collaboration |
| Lizenz (Deutsch): |  CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |