Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector
dc.date.accessioned | 2019-01-07T11:58:52Z | |
dc.date.available | 2019-01-07T11:58:52Z | |
dc.date.created | 2018-06-25T12:10:54Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Aaboud, Morad Aad, Georges Abbott, Brad Abdinov, Ovsat Bahram oglu Abeloos, Baptiste Abidi, Syed Haider AbouZeid, Hass Abraham, Nadine L. Abramowicz, Halina Abreu, Henso Buanes, Trygve Dale, Ørjan Eigen, Gerald Fomin, Nikolai Lipniacka, Anna Martin dit Latour, Bertrand Mæland, Steffen Stugu, Bjarne Yang, Zongchang Zalieckas, Justas Bugge, Magnar Kopangen Cameron, David Gordon Catmore, James Richard Feigl, Simon Franconi, Laura Garonne, Vincent Gramstad, Eirik Morisbak, Vanja Oppen, Henrik Ould-Saada, Farid Read, Alexander Lincoln Røhne, Ole Myren Sandaker, Heidi Serfon, Cédric Stapnes, Steinar Vadla, Knut Oddvar Høie Abulaiti, Yiming Acharya, Bobby S. Adachi, Shunsuke Adamczyk, Leszek Adelman, Jareed Adersberger, Michael Adye, Tim Affolder, Anthony Allen Afik, Yoav Agheorghiesei, Catalin Aguilar Saavedra, Juan Antonio Ahlen, Steven Ahmadov, Faig Aielli, Giulio ATLAS, Collaboration . Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector. Physical Review D. 2018, 97:072003(7) | |
dc.identifier.uri | http://hdl.handle.net/10852/66031 | |
dc.description.abstract | A search for the associated production of the Higgs boson with a top quark pair (t¯tH) is reported. The search is performed in multilepton final states using a data set corresponding to an integrated luminosity of 36.1 fb−1 of proton-proton collision data recorded by the ATLAS experiment at a center-of-mass energy ffiffi s p ¼ 13 TeV at the Large Hadron Collider. Higgs boson decays to WW, ττ, and ZZ are targeted. Seven final states, categorized by the number and flavor of charged-lepton candidates, are examined for the presence of the Standard Model Higgs boson with a mass of 125 GeVand a pair of top quarks. An excess of events over the expected background from Standard Model processes is found with an observed significance of 4.1 standard deviations, compared to an expectation of 2.8 standard deviations. The best fit for the t¯tH production cross section is σðt¯tHÞ ¼ 790þ230 −210 fb, in agreement with the Standard Model prediction of 507þ35 −50 fb. The combination of this result with other t¯tH searches from the ATLAS experiment using the Higgs boson decay modes to bb¯, γγ and ZZ → 4l, has an observed significance of 4.2 standard deviations, compared to an expectation of 3.8 standard deviations. This provides evidence for the t¯tH production mode. | en_US |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector | en_US |
dc.title.alternative | ENEngelskEnglishEvidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector | |
dc.type | Journal article | en_US |
dc.creator.author | Aaboud, Morad | |
dc.creator.author | Aad, Georges | |
dc.creator.author | Abbott, Brad | |
dc.creator.author | Abdinov, Ovsat Bahram oglu | |
dc.creator.author | Abeloos, Baptiste | |
dc.creator.author | Abidi, Syed Haider | |
dc.creator.author | AbouZeid, Hass | |
dc.creator.author | Abraham, Nadine L. | |
dc.creator.author | Abramowicz, Halina | |
dc.creator.author | Abreu, Henso | |
dc.creator.author | Buanes, Trygve | |
dc.creator.author | Dale, Ørjan | |
dc.creator.author | Eigen, Gerald | |
dc.creator.author | Fomin, Nikolai | |
dc.creator.author | Lipniacka, Anna | |
dc.creator.author | Martin dit Latour, Bertrand | |
dc.creator.author | Mæland, Steffen | |
dc.creator.author | Stugu, Bjarne | |
dc.creator.author | Yang, Zongchang | |
dc.creator.author | Zalieckas, Justas | |
dc.creator.author | Bugge, Magnar Kopangen | |
dc.creator.author | Cameron, David Gordon | |
dc.creator.author | Catmore, James Richard | |
dc.creator.author | Feigl, Simon | |
dc.creator.author | Franconi, Laura | |
dc.creator.author | Garonne, Vincent | |
dc.creator.author | Gramstad, Eirik | |
dc.creator.author | Morisbak, Vanja | |
dc.creator.author | Oppen, Henrik | |
dc.creator.author | Ould-Saada, Farid | |
dc.creator.author | Read, Alexander Lincoln | |
dc.creator.author | Røhne, Ole Myren | |
dc.creator.author | Sandaker, Heidi | |
dc.creator.author | Serfon, Cédric | |
dc.creator.author | Stapnes, Steinar | |
dc.creator.author | Vadla, Knut Oddvar Høie | |
dc.creator.author | Abulaiti, Yiming | |
dc.creator.author | Acharya, Bobby S. | |
dc.creator.author | Adachi, Shunsuke | |
dc.creator.author | Adamczyk, Leszek | |
dc.creator.author | Adelman, Jareed | |
dc.creator.author | Adersberger, Michael | |
dc.creator.author | Adye, Tim | |
dc.creator.author | Affolder, Anthony Allen | |
dc.creator.author | Afik, Yoav | |
dc.creator.author | Agheorghiesei, Catalin | |
dc.creator.author | Aguilar Saavedra, Juan Antonio | |
dc.creator.author | Ahlen, Steven | |
dc.creator.author | Ahmadov, Faig | |
dc.creator.author | Aielli, Giulio | |
dc.creator.author | ATLAS, Collaboration | |
cristin.unitcode | 185,15,4,0 | |
cristin.unitname | Fysisk institutt | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1593609 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review D&rft.volume=97:072003&rft.spage=&rft.date=2018 | |
dc.identifier.jtitle | Physical Review D | |
dc.identifier.volume | 97:072003 | |
dc.identifier.issue | 7 | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevD.97.072003 | |
dc.identifier.urn | URN:NBN:no-68540 | |
dc.subject.nvi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2470-0010 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/66031/1/1593609.pdf | |
dc.type.version | PublishedVersion |
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