Measurement of the top quark mass in the $t\bar{t}\to$ dilepton channel from $\sqrt{s}=8$ TeV ATLAS data

Youhei Yamaguchi

doi:10.1016/j.physletb.2016.08.042

論文・著書情報

タイトル

和文:	Measurement of the top quark mass in the $t\bar{t}\to$ dilepton channel from $\sqrt{s}=8$ TeV ATLAS data
英文:	Measurement of the top quark mass in the $t\bar{t}\to$ dilepton channel from $\sqrt{s}=8$ TeV ATLAS data

著者

和文:	山口洋平.
英文:	Youhei Yamaguchi.

言語

English

掲載誌/書名

和文:
英文:

巻, 号, ページ

Vol. "B761" pp. "350-371"

出版年月

2016年6月

出版者

和文:
英文:

会議名称

和文:
英文:

開催地

和文:
英文:

公式リンク

http://inspirehep.net/record/1468064

DOI

https://doi.org/10.1016/j.physletb.2016.08.042

アブストラクト

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

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