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Measurements of Higgs boson properties in the diphoton decay channel with 36??fb?1 of pp collision data at √s=13??TeV with the ATLAS detector
http://hdl.handle.net/2241/00154150
http://hdl.handle.net/2241/00154150207aed28-5106-45d2-b367-ecf43f7b022d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PRD_98-5-052005 (3.0 MB)
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| Item type | アイテムタイプJ(1) | |||||||||||||||||
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| 公開日 | 2019-01-24 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Measurements of Higgs boson properties in the diphoton decay channel with 36??fb?1 of pp collision data at √s=13??TeV with the ATLAS detector | |||||||||||||||||
| 言語 | ||||||||||||||||||
| 言語 | eng | |||||||||||||||||
| 資源タイプ | ||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||
| 著者 |
HARA Kazuhiko
× HARA Kazuhiko
× KIM Shinhong(nobuhiro)
× OKAWA Hideki
× SATO Koji
× UKEGAWA Fumihiko
× ATLA Collaboration
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| 著者情報 | ||||||||||||||||||
| 所属・氏名 | 数理物質系; 原, 和彦; ハラ, カズヒコ; HARA, Kazuhiko | |||||||||||||||||
| 研究者総覧URL | http://trios.tsukuba.ac.jp/researcher/0000000587 | |||||||||||||||||
| 著者情報 | ||||||||||||||||||
| 所属・氏名 | 筑波大学; 金, 信弘; キム, シンホン; KIM, Shinhong(nobuhiro) | |||||||||||||||||
| 研究者総覧URL | http://trios.tsukuba.ac.jp/researcher/0000000610 | |||||||||||||||||
| 著者情報 | ||||||||||||||||||
| 所属・氏名 | 数理物質系; 大川, 英希; オオカワ, ヒデキ; OKAWA, Hideki | |||||||||||||||||
| 研究者総覧URL | http://trios.tsukuba.ac.jp/researcher/0000003634 | |||||||||||||||||
| 著者情報 | ||||||||||||||||||
| 所属・氏名 | 数理物質系; 佐藤, 構二; サトウ, コウジ; SATO, Koji | |||||||||||||||||
| 研究者総覧URL | http://trios.tsukuba.ac.jp/researcher/0000000532 | |||||||||||||||||
| 著者情報 | ||||||||||||||||||
| 所属・氏名 | 数理物質系; 受川, 史彦; ウケガワ, フミヒコ; UKEGAWA, Fumihiko | |||||||||||||||||
| 研究者総覧URL | http://trios.tsukuba.ac.jp/researcher/0000000594 | |||||||||||||||||
| 抄録 | ||||||||||||||||||
| 内容記述 | Properties of the Higgs boson are measured in the two-photon final state using 36.1??fb?1 of proton?proton collision data recorded at √s=13??TeV by the ATLAS experiment at the Large Hadron Collider. Cross-section measurements for the production of a Higgs boson through gluon?gluon fusion vector-boson fusion and in association with a vector boson or a top-quark pair are reported. The signal strength defined as the ratio of the observed to the expected signal yield is measured for each of these production processes as well as inclusively. The global signal strength measurement of 0.99±0.14 improves on the precision of the ATLAS measurement at √s=7 and 8 TeV by a factor of two. Measurements of gluon?gluon fusion and vector-boson fusion productions yield signal strengths compatible with the Standard Model prediction. Measurements of simplified template cross sections designed to quantify the different Higgs boson production processes in specific regions of phase space are reported. The cross section for the production of the Higgs boson decaying to two isolated photons in a fiducial region closely matching the experimental selection of the photons is measured to be 55±10??fb which is in good agreement with the Standard Model prediction of 64±2??fb. Furthermore cross sections in fiducial regions enriched in Higgs boson production in vector-boson fusion or in association with large missing transverse momentum leptons or top-quark pairs are reported. Differential and double-differential measurements are performed for several variables related to the diphoton kinematics as well as the kinematics and multiplicity of the jets produced in association with a Higgs boson. These differential cross sections are sensitive to higher order QCD corrections and properties of the Higgs boson such as its spin and CP quantum numbers. No significant deviations from a wide array of Standard Model predictions are observed. Finally the strength and tensor structure of the Higgs boson interactions are investigated using an effective Lagrangian which introduces additional CP-even and CP-odd interactions. No significant new physics contributions are observed. | |||||||||||||||||
| 書誌情報 |
en : Physical review D 巻 98, 号 5, p. 052005, 発行日 2018-09 |
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| PISSN | ||||||||||||||||||
| 収録物識別子 | 2470-0010 | |||||||||||||||||
| NCID | ||||||||||||||||||
| 収録物識別子 | AA00773624 | |||||||||||||||||
| アクセス権 | ||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||
| 権利情報 | ||||||||||||||||||
| 権利情報 | c 2018 CERN for the ATLAS Collaboration Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title journal citation and DOI. Funded by SCOAP3. | |||||||||||||||||
| 出版者 | ||||||||||||||||||
| 出版者 | American Physical Society | |||||||||||||||||
| 出版タイプ | ||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||
| DOI | ||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 関連識別子 | https://doi.org/10.1103/PhysRevD.98.052005 | |||||||||||||||||
