The top quark mass is measured in the tt̄ → dileptonchannel (lepton=e, µ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of √s=8 TeV and correspond to an integrated luminosity of about 20.2fb-1. Exploiting the template method, and using the distribution of invariant masses of lepton-b-jetpairs, the top quark mass is measured to be mtop=172.99 ±0.41 (stat) ±0.74 (syst) GeV, with a total uncertainty of 0.84 GeV. Finally, acombination with previous ATLAS mtop measurements from √s=7TeVdata in the tt̄ → dilepton and tt̄→lepton+jetschannels results in mtop=172.84 ±0.34 (stat) ±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.

M. Aaboud, G.A. (2016). Measurement of the top quark mass in the tt̄ → Dileptonchannel from √s=8 TeV ATLAS data. PHYSICS LETTERS. SECTION B, 761, 350-371 [10.1016/j.physletb.2016.08.042].

Measurement of the top quark mass in the tt̄ → Dileptonchannel from √s=8 TeV ATLAS data

G. L. Alberghi;L. Bellagamba;S. Biondi;D. Boscherini;A. Bruni;G. Bruni;G. D'amen;S. De Castro;F. Fabbri;L. Fabbri;M. Franchini;A. Gabrielli;B. Giacobbe;F. Lasagni Manghi;I. Massa;L. Massa;A. Mengarelli;A. Polini;L. Rinaldi;M. Romano;C. Sbarra;N. Semprini-Cesari;M. Sioli;R. Spighi;G. Ucchielli;S. Valentinetti;M. Villa;C. Vittori;A. Zoccoli;
2016

Abstract

The top quark mass is measured in the tt̄ → dileptonchannel (lepton=e, µ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of √s=8 TeV and correspond to an integrated luminosity of about 20.2fb-1. Exploiting the template method, and using the distribution of invariant masses of lepton-b-jetpairs, the top quark mass is measured to be mtop=172.99 ±0.41 (stat) ±0.74 (syst) GeV, with a total uncertainty of 0.84 GeV. Finally, acombination with previous ATLAS mtop measurements from √s=7TeVdata in the tt̄ → dilepton and tt̄→lepton+jetschannels results in mtop=172.84 ±0.34 (stat) ±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.
2016
M. Aaboud, G.A. (2016). Measurement of the top quark mass in the tt̄ → Dileptonchannel from √s=8 TeV ATLAS data. PHYSICS LETTERS. SECTION B, 761, 350-371 [10.1016/j.physletb.2016.08.042].
M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, R. Aben, O.S. AbouZeid, N.L. Abraham, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulait...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/588051
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