Publication:

Measurement of the top quark mass in the tt¯→dilepton channel from √s=8 TeV ATLAS data

Thumbnail Image

Open/View Files

Primary 1606.02179.pdf (964.71 KB)

Date

2016

Authors

Published Version

10.1016/j.physletb.2016.08.042

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier
The Harvard community has made this article openly available. Please share how this access benefits you.

Research Projects

Organizational Units

Journal Issue

Citation

ATLAS Collaboration. 2016. Measurement of the top quark mass in the tt¯→dilepton channel from √s=8 TeV ATLAS data. Physics Letters B 761: 350-371. doi:10.1016/j.physletb.2016.08.042

Abstract

The top quark mass is measured in the tt¯ → dilepton channel (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 20.2 fb−1. Exploiting the template method, and using the distribution of invariant masses of lepton–b-jet pairs, 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, a combination with previous ATLAS mtop measurements from √s = 7 TeV data in the tt¯ → dilepton and tt¯ → lepton+jets channels results in mtop = 172.84 ±0.34 (stat) ±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.

Description

Other Available Sources

https://arxiv.org/pdf/1606.02179.pdf

Research Data

Keywords

Terms of Use

This article is made available under the terms and conditions applicable to Open Access Policy Articles (OAP), as set forth at Terms of Service

URI

http://nrs.harvard.edu/urn-3:HUL.InstRepos:29362060

Collections

FAS Scholarly Articles

Endorsement

Review

Supplemented By

Related Stories