CP Properties of Higgs Boson Interactions with Top Quarks in the tt[over ¯]H and tH Processes Using H→γγ with the ATLAS Detector
dc.date.accessioned | 2021-03-20T21:23:36Z | |
dc.date.available | 2021-03-20T21:23:36Z | |
dc.date.created | 2020-10-07T15:30:35Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Aad, Georges Abbott, Brad Abbott, Dale C. Abed Abud, Adam Abeling, Kira Abhayasinghe, Deshan Kavishka Abidi, Syed Haider AbouZeid, Ossama Sherif Alexander Abraham, Nadine L. Abramowicz, Halina Bjørke, Kristian Bugge, Magnar Kopangen Cameron, David Gordon Catmore, James Richard Garonne, Vincent Gramstad, Eirik Heggelund, Andreas Løkken Hellesund, Simen Håland, Even Simonsen Morisbak, Vanja Oppen, Henrik Ould-Saada, Farid Pedersen, Maiken Read, Alexander Lincoln Rye, Eli Bæverfjord Røhne, Ole Myren Sandaker, Heidi Vadla, Knut Oddvar Høie Buanes, Trygve Djuvsland, Julia Isabell Eigen, Gerald Fomin, Nikolai Lee, Graham Richard Lipniacka, Anna Martin dit Latour, Bertrand Stugu, Bjarne Træet, Are Sivertsen Abreu, Henso Abulaiti, Yiming Acharya, Bobby S. Achkar, Baida Adam, Lennart Adam-Bourdarios, Claire Adamczyk, Leszek Adamek, Lukas Adelman, Jareed Adersberger, Michael Adigüzel, Aytül Adorni, Sofia Adye, Tim ATLAS, Collaboration . CP Properties of Higgs Boson Interactions with Top Quarks in the tt[over ¯]H and tH Processes Using H→γγ with the ATLAS Detector. Physical Review Letters. 2020, 125:061802(6), 1-21 | |
dc.identifier.uri | http://hdl.handle.net/10852/84326 | |
dc.description.abstract | A study of the charge conjugation and parity (CP) properties of the interaction between the Higgs boson and top quarks is presented. Higgs bosons are identified via the diphoton decay channel (H→γγ), and their production in association with a top quark pair (t¯tH) or single top quark (tH) is studied. The analysis uses 139 fb−1 of proton–proton collision data recorded at a center-of-mass energy of √s=13 TeV with the ATLAS detector at the Large Hadron Collider. Assuming a CP-even coupling, the t¯tH process is observed with a significance of 5.2 standard deviations. The measured cross section times H→γγ branching ratio is 1.64+0.38−0.36(stat)+0.17−0.14(sys) fb, and the measured rate for t¯tH is 1.43+0.33−0.31(stat)+0.21−0.15(sys) times the Standard Model expectation. The tH production process is not observed and an upper limit on its rate of 12 times the Standard Model expectation is set. A CP-mixing angle greater (less) than 43 (−43)° is excluded at 95% confidence level. | |
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 | CP Properties of Higgs Boson Interactions with Top Quarks in the tt[over ¯]H and tH Processes Using H→γγ with the ATLAS Detector | |
dc.type | Journal article | |
dc.creator.author | Aad, Georges | |
dc.creator.author | Abbott, Brad | |
dc.creator.author | Abbott, Dale C. | |
dc.creator.author | Abed Abud, Adam | |
dc.creator.author | Abeling, Kira | |
dc.creator.author | Abhayasinghe, Deshan Kavishka | |
dc.creator.author | Abidi, Syed Haider | |
dc.creator.author | AbouZeid, Ossama Sherif Alexander | |
dc.creator.author | Abraham, Nadine L. | |
dc.creator.author | Abramowicz, Halina | |
dc.creator.author | Bjørke, Kristian | |
dc.creator.author | Bugge, Magnar Kopangen | |
dc.creator.author | Cameron, David Gordon | |
dc.creator.author | Catmore, James Richard | |
dc.creator.author | Garonne, Vincent | |
dc.creator.author | Gramstad, Eirik | |
dc.creator.author | Heggelund, Andreas Løkken | |
dc.creator.author | Hellesund, Simen | |
dc.creator.author | Håland, Even Simonsen | |
dc.creator.author | Morisbak, Vanja | |
dc.creator.author | Oppen, Henrik | |
dc.creator.author | Ould-Saada, Farid | |
dc.creator.author | Pedersen, Maiken | |
dc.creator.author | Read, Alexander Lincoln | |
dc.creator.author | Rye, Eli Bæverfjord | |
dc.creator.author | Røhne, Ole Myren | |
dc.creator.author | Sandaker, Heidi | |
dc.creator.author | Vadla, Knut Oddvar Høie | |
dc.creator.author | Buanes, Trygve | |
dc.creator.author | Djuvsland, Julia Isabell | |
dc.creator.author | Eigen, Gerald | |
dc.creator.author | Fomin, Nikolai | |
dc.creator.author | Lee, Graham Richard | |
dc.creator.author | Lipniacka, Anna | |
dc.creator.author | Martin dit Latour, Bertrand | |
dc.creator.author | Stugu, Bjarne | |
dc.creator.author | Træet, Are Sivertsen | |
dc.creator.author | Abreu, Henso | |
dc.creator.author | Abulaiti, Yiming | |
dc.creator.author | Acharya, Bobby S. | |
dc.creator.author | Achkar, Baida | |
dc.creator.author | Adam, Lennart | |
dc.creator.author | Adam-Bourdarios, Claire | |
dc.creator.author | Adamczyk, Leszek | |
dc.creator.author | Adamek, Lukas | |
dc.creator.author | Adelman, Jareed | |
dc.creator.author | Adersberger, Michael | |
dc.creator.author | Adigüzel, Aytül | |
dc.creator.author | Adorni, Sofia | |
dc.creator.author | Adye, Tim | |
dc.creator.author | ATLAS, Collaboration | |
cristin.unitcode | 185,15,4,60 | |
cristin.unitname | Høyenergifysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1837989 | |
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 Letters&rft.volume=125:061802&rft.spage=1&rft.date=2020 | |
dc.identifier.jtitle | Physical Review Letters | |
dc.identifier.volume | 125 | |
dc.identifier.issue | 6 | |
dc.identifier.doi | https://doi.org/10.1103/PhysRevLett.125.061802 | |
dc.identifier.urn | URN:NBN:no-87088 | |
dc.subject.nvi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0031-9007 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/84326/2/PhysRevLett.125.061802.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 061802 | |
dc.relation.project | NFR/310713 |
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