Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
dc.date.accessioned | 2021-03-23T20:57:14Z | |
dc.date.available | 2021-03-23T20:57:14Z | |
dc.date.created | 2020-10-07T14:57:52Z | |
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 Heggelund, Andreas Løkken Hellesund, Simen 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 Affolder, Anthony Allen Afik, Yoav ATLAS, Collaboration . Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV. Journal of High Energy Physics (JHEP). 2020, 2020:51, 1-67 | |
dc.identifier.uri | http://hdl.handle.net/10852/84598 | |
dc.description.abstract | The combination of measurements of the W boson polarization in top quark decays performed by the ATLAS and CMS collaborations is presented. The measurements are based on proton-proton collision data produced at the LHC at a centre-of-mass energy of 8 TeV, and corresponding to an integrated luminosity of about 20 fb−1 for each experiment. The measurements used events containing one lepton and having different jet multiplicities in the final state. The results are quoted as fractions of W bosons with longitudinal (F0), left-handed (FL), or right-handed (FR) polarizations. The resulting combined measurements of the polarization fractions are F0 = 0.693 ± 0.014 and FL = 0.315 ± 0.011. The fraction FR is calculated from the unitarity constraint to be FR = −0.008 ± 0.007. These results are in agreement with the standard model predictions at next-to-next-to-leading order in perturbative quantum chromodynamics and represent an improvement in precision of 25 (29)% for F0 (FL) with respect to the most precise single measurement. A limit on anomalous right-handed vector (VR), and left- and right-handed tensor (gL, gR) tWb couplings is set while fixing all others to their standard model values. The allowed regions are [−0.11, 0.16] for VR, [−0.08, 0.05] for gL, and [−0.04, 0.02] for gR, at 95% confidence level. Limits on the corresponding Wilson coefficients are also derived. | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV | |
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 | Heggelund, Andreas Løkken | |
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 | 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 | Affolder, Anthony Allen | |
dc.creator.author | Afik, Yoav | |
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 | 1837972 | |
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=2020:51&rft.spage=1&rft.date=2020 | |
dc.identifier.jtitle | Journal of High Energy Physics (JHEP) | |
dc.identifier.volume | 2020 | |
dc.identifier.issue | 8 | |
dc.identifier.doi | https://doi.org/10.1007/JHEP08(2020)051 | |
dc.identifier.urn | URN:NBN:no-87323 | |
dc.subject.nvi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 1126-6708 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/84598/2/Aad2020_Article_CombinationOfTheWBosonPolariza.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 51 | |
dc.relation.project | NFR/310713 |
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