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https://hdl.handle.net/20.500.11851/3130
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | The ATLAS Collaboration | - |
dc.contributor.author | Sultansoy, Saleh | - |
dc.date.accessioned | 2019-12-27T15:11:20Z | |
dc.date.available | 2019-12-27T15:11:20Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | ATLAS collaboration. (2019). Search for top-quark decay t? Hq wi th 36 fb? 1 of pp colliion da ta at $$\qr t {} $$= 13 TeV wi th the ATLAS de tec tor. Journal of High Energy Physics, 2019(5), 123. | en_US |
dc.identifier.issn | 1126-6708 | |
dc.identifier.uri | https://link.springer.com/article/10.1007%2FJHEP05%282019%29123 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.11851/3130 | - |
dc.description.abstract | A search for flavour-changing neutral current decays of a top quark into an up-type quark (q = u, c) and the Standard Model Higgs boson, t → Hq, is presented. The search is based on a dataset of pp collisions at s = 13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider and corresponding to an integrated luminosity of 36.1 fb−1. Two complementary analyses are performed to search for top-quark pair events in which one top quark decays into Wb and the other top quark decays into Hq, and target the H→ bb¯ and H → τ+τ− decay modes, respectively. The high multiplicity of b-quark jets, or the presence of hadronically decaying τ-leptons, is exploited in the two analyses respectively. Multivariate techniques are used to separate the signal from the background, which is dominated by top-quark pair production. No significant excess of events above the background expectation is found, and 95% CL upper limits on the t → Hq branching ratios are derived. The combination of these searches with ATLAS searches in diphoton and multilepton final states yields observed (expected) 95% CL upper limits on the t → Hc and t → Hu branching ratios of 1.1 × 10−3 (8.3 × 10−4) and 1.2 × 10−3 (8.3 × 10−4), respectively. The corresponding combined observed (expected) upper limits on the |λtcH| and |λtuH| couplings are 0.064 (0.055) and 0.066 (0.055), respectively.[Figure not available: see fulltext.] © 2019, The Author(s). | en_US |
dc.language.iso | en | en_US |
dc.publisher | Springer Verlag | en_US |
dc.relation.ispartof | Journal of High Energy Physics | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Collisions | en_US |
dc.subject | jets | en_US |
dc.subject | proton–proton collisions | en_US |
dc.title | Search for top-quark decays t › Hq with 36 fb-1 of pp collision data at ?s = 13 TeV with the ATLAS detector | en_US |
dc.type | Article | en_US |
dc.department | Faculties, Faculty of Engineering, Department of Material Science and Nanotechnology Engineering | en_US |
dc.department | Fakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü | tr_TR |
dc.identifier.volume | 5 | |
dc.identifier.issue | 5 | |
dc.authorid | 0000-0003-2340-748X | - |
dc.identifier.wos | WOS:000468948900001 | en_US |
dc.identifier.scopus | 2-s2.0-85066135451 | en_US |
dc.institutionauthor | Sultansoy, Saleh F. | - |
dc.identifier.doi | 10.1007/JHEP05(2019)123 | - |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.identifier.scopusquality | Q2 | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
crisitem.author.dept | 02.6. Department of Material Science and Nanotechnology Engineering | - |
Appears in Collections: | Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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File | Description | Size | Format | |
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sultansoy_top-quark.pdf | 1.53 MB | Adobe PDF | ![]() View/Open |
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