Measurement of the mass difference between top and anti-top quarks in pp collisions at √s=7 TeV using the ATLAS detector

ATLAS Collaboration

研究成果: Article同行評審

13 引文 斯高帕斯(Scopus)

摘要

A measurement of the mass difference between top and anti-top quarks is presented. In a 4.7 fb−1 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−m=0.67±0.61(stat)±0.41(syst) GeV, consistent with CPT invariance.

原文English
頁(從 - 到)363-379
頁數17
期刊Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
728
DOIs
出版狀態Published - 2014 一月 20

All Science Journal Classification (ASJC) codes

  • 核能與高能物理

指紋

深入研究「Measurement of the mass difference between top and anti-top quarks in pp collisions at √s=7 TeV using the ATLAS detector」主題。共同形成了獨特的指紋。

引用此