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Measurement of jet charge in dijet events from √s=8TeV pp collisions with the ATLAS detector
http://hdl.handle.net/2241/00139593
http://hdl.handle.net/2241/001395935cb71053-ae77-4285-94dc-8fc20bc6e5db
名前 / ファイル | ライセンス | アクション |
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Item type | Journal Article(1) | |||||
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公開日 | 2016-04-27 | |||||
タイトル | ||||||
タイトル | Measurement of jet charge in dijet events from √s=8TeV pp collisions with the ATLAS detector | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
著者 |
ATLA Collaboration
× ATLA Collaboration× 原, 和彦× 金, 信弘× 大川, 英希× 佐藤, 構二× 受川, 史彦 |
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抄録 | ||||||
内容記述 | The momentum-weighted sum of the charges of tracks associated to a jet is sensitive to the charge of the initiating quark or gluon. This paper presents a measurement of the distribution of momentum-weighted sums, called jet charge, in dijet events using 20.3 fb^-1 of data recorded with the ATLAS detector at √s=8 TeV in pp collisions at the LHC. The jet charge distribution is unfolded to remove distortions from detector effects and the resulting particle-level distribution is compared with several models. The pT dependence of the jet charge distribution average and standard deviation are compared to predictions obtained with several leading-order and next-to-leading-order parton distribution functions. The data are also compared to different Monte Carlo simulations of QCD dijet production using various settings of the free parameters within these models. The chosen value of the strong coupling constant used to calculate gluon radiation is found to have a significant impact on the predicted jet charge. There is evidence for a pT dependence of the jet charge distribution for a given jet flavor. In agreement with perturbative QCD predictions, the data show that the average jet charge of quark-initiated jets decreases in magnitude as the energy of the jet increases. | |||||
書誌情報 |
en : Physical review D 巻 93, 号 5, p. 052003, 発行日 2016-03 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2470-0010 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00773624 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
関連識別子 | https://doi.org/10.1103/PhysRevD.93.052003 | |||||
権利情報 | ||||||
権利情報 | (c) 2016 CERN, for the ATLAS Collaboration | |||||
権利情報 | ||||||
権利情報 | Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版者 | ||||||
出版者 | American Physical Society |