dc.contributor.author | Aad, Georges | |
dc.contributor.author | Abbott, Brad | |
dc.contributor.author | Abdallah, Jalal | |
dc.contributor.author | Abdinov, Ovsat Bahram oglu | |
dc.contributor.author | Aben, Rosemarie | |
dc.contributor.author | Abolins, Maris | |
dc.contributor.author | AbouZeid, Hass | |
dc.contributor.author | Abramowicz, Halina | |
dc.contributor.author | Abreu, Henso | |
dc.contributor.author | Abreu, Rômulo F. | |
dc.contributor.author | Buanes, Trygve | |
dc.contributor.author | Dale, Ørjan | |
dc.contributor.author | Eigen, Gerald | |
dc.contributor.author | Kastanas, Alex | |
dc.contributor.author | Liebig, Wolfgang | |
dc.contributor.author | Lipniacka, Anna | |
dc.contributor.author | Martin dit Latour, Bertrand | |
dc.contributor.author | Mæland, Steffen | |
dc.contributor.author | Rosendahl, Peter Lundgaard | |
dc.contributor.author | Sandaker, Heidi | |
dc.contributor.author | Sjursen, Therese B. | |
dc.contributor.author | Smestad, Lillian | |
dc.contributor.author | Stugu, Bjarne | |
dc.contributor.author | Ugland, Maren | |
dc.contributor.author | Zalieckas, Justas | |
dc.contributor.author | Bugge, Lars | |
dc.contributor.author | Bugge, Magnar Kopangen | |
dc.contributor.author | Cameron, David Gordon | |
dc.contributor.author | Catmore, James Richard | |
dc.contributor.author | Czyczula, Zofia | |
dc.contributor.author | Franconi, Laura | |
dc.contributor.author | Garonne, Vincent | |
dc.contributor.author | Gjelsten, Børge Kile | |
dc.contributor.author | Gramstad, Eirik | |
dc.contributor.author | Morisbak, Vanja | |
dc.contributor.author | Nilsen, Jon Kerr | |
dc.contributor.author | Ould-Saada, Farid | |
dc.contributor.author | Pajchel, Katarina | |
dc.contributor.author | Pedersen, Maiken | |
dc.contributor.author | Raddum, Silje Hattrem | |
dc.contributor.author | Read, Alexander Lincoln | |
dc.contributor.author | Røhne, Ole Myren | |
dc.contributor.author | Stapnes, Steinar | |
dc.contributor.author | Strandlie, Are | |
dc.contributor.author | Abulaiti, Yiming | |
dc.contributor.author | Acharya, Bobby S. | |
dc.contributor.author | Adamczyk, Leszek | |
dc.contributor.author | Adams, David | |
dc.contributor.author | Adelman, Jareed | |
dc.contributor.author | Adomeit, Stefanie | |
dc.contributor.author | ATLAS, Collaboration | |
dc.date.accessioned | 2015-12-29T11:34:50Z | |
dc.date.available | 2015-12-29T11:34:50Z | |
dc.date.issued | 2015-07-29 | |
dc.Published | European Physical Journal C 2015, 5:349 | eng |
dc.identifier.issn | 1434-6044 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/10832 | |
dc.description.abstract | A search for the Standard Model Higgs boson produced in association with a pair of top quarks, \(t\bar{t}H\), is presented. The analysis uses 20.3 fb\(^{-1}\) of pp collision data at \(\sqrt{s}\) = 8 TeV, collected with the ATLAS detector at the Large Hadron Collider during 2012. The search is designed for the H to \(b\bar{b}\) decay mode and uses events containing one or two electrons or muons. In order to improve the sensitivity of the search, events are categorised according to their jet and b-tagged jet multiplicities. A neural network is used to discriminate between signal and background events, the latter being dominated by \(t\bar{t}\)+jets production. In the single-lepton channel, variables calculated using a matrix element method are included as inputs to the neural network to improve discrimination of the irreducible \(t\bar{\)+\(\b\bar{b}\) background. No significant excess of events above the background expectation is found and an observed (expected) limit of 3.4 (2.2) times the Standard Model cross section is obtained at 95% confidence level. The ratio of the measured \(t\bar{t}H\) signal cross section to the Standard Model expectation is found to be \(\mu = 1.5 \pm 1.1\) assuming a Higgs boson mass of 125 GeV. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Springer | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0 | eng |
dc.subject | Standard Model Higgs boson | eng |
dc.title | Search for the Standard Model Higgs boson produced in association with top quarks and decaying into \(b\bar{b}\) in pp collisions at \(\sqrt{s}\) = 8 TeV with the ATLAS detector | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2015-11-09T12:02:00Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright CERN for the benefit of the ATLAS collaboration 2015 | en_US |
dc.identifier.doi | https://doi.org/10.1140/epjc/s10052-015-3543-1 | |
dc.identifier.cristin | 1266113 | |
dc.subject.nsi | VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.subject.nsi | VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 | |
dc.subject.nsi | VDP::Matematikk og Naturvitenskap: 400 | en_US |