Measurements of b-jet tagging efficiency with the ATLAS detector using tt¯ events at √s = 13 TeV
dc.date.accessioned | 2019-06-14T05:19:33Z | |
dc.date.available | 2019-06-14T05:19:33Z | |
dc.date.created | 2018-09-25T10:56:05Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Aaboud, Morad Aad, Georges Abbott, Brad Abdinov, Ovsat Bahram oglu Abeloos, Baptiste Abhayasinghe, Deshan Kavishka Abidi, Syed Haider AbouZeid, Hass Abraham, Nadine L. Abramowicz, Halina Buanes, Trygve 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 Hellesund, Simen Morisbak, Vanja Oppen, Henrik Ould-Saada, Farid Pedersen, Maiken Read, Alexander Lincoln Røhne, Ole Myren Sandaker, Heidi Serfon, Cédric Stapnes, Steinar Vadla, Knut Oddvar Høie Abreu, Henso Abulaiti, Yiming Acharya, Bobby S. Adachi, Shunsuke Adamczyk, Leszek Adelman, Jareed Adersberger, Michael Adigüzel, Aytül Adye, Tim Affolder, Anthony Allen Afik, Yoav Agheorghiesei, Catalin Aguilar Saavedra, Juan Antonio ATLAS, Collaboration . Measurements of b-jet tagging efficiency with the ATLAS detector using tt¯ events at √s = 13 TeV. Journal of High Energy Physics (JHEP). 2018, 2018:89, 1-47 | |
dc.identifier.uri | http://hdl.handle.net/10852/68324 | |
dc.description.abstract | The efficiency to identify jets containing b-hadrons (b-jets) is measured using a high purity sample of dileptonic top quark-antiquark pairs (tt¯) selected from the 36.1 fb−1 of data collected by the ATLAS detector in 2015 and 2016 from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy √ s = 13 TeV. Two methods are used to extract the efficiency from tt¯ events, a combinatorial likelihood approach and a tag-and-probe method. A boosted decision tree, not using b-tagging information, is used to select events in which two b-jets are present, which reduces the dominant uncertainty in the modelling of the flavour of the jets. The efficiency is extracted for jets in a transverse momentum range from 20 to 300 GeV, with data-to-simulation scale factors calculated by comparing the efficiency measured using collision data to that predicted by the simulation. The two methods give compatible results, and achieve a similar level of precision, measuring data-to-simulation scale factors close to unity with uncertainties ranging from 2% to 12% depending on the jet transverse momentum. | |
dc.language | EN | |
dc.publisher | Institute of Physics Publishing (IOPP) | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Measurements of b-jet tagging efficiency with the ATLAS detector using tt¯ events at √s = 13 TeV | |
dc.type | Journal article | |
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 | Abhayasinghe, Deshan Kavishka | |
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 | Buanes, Trygve | |
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 | Hellesund, Simen | |
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 | 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 | Abreu, Henso | |
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 | Adigüzel, Aytül | |
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 | ATLAS, Collaboration | |
cristin.unitcode | 185,15,4,0 | |
cristin.unitname | Fysisk institutt | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1613270 | |
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=Journal of High Energy Physics (JHEP)&rft.volume=2018:89&rft.spage=1&rft.date=2018 | |
dc.identifier.jtitle | Journal of High Energy Physics (JHEP) | |
dc.identifier.volume | 2018:89 | |
dc.identifier.startpage | 1 | |
dc.identifier.endpage | 47 | |
dc.identifier.doi | http://dx.doi.org/10.1007/JHEP08(2018)089 | |
dc.identifier.urn | URN:NBN:no-71471 | |
dc.subject.nvi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 1029-8479 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/68324/2/Aaboud2018_Article_MeasurementsOfB-jetTaggingEffi.pdf | |
dc.type.version | PublishedVersion | |
dc.relation.project | NFR/255182 |
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