{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.135457.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2635801"}},{"@id":"https://doi.org/10.1007/JHEP09(2023)004","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2023","description":"A search for a charged Higgs boson, $H^{\\pm}$, produced in top-quark decays, $t\\rightarrow H^{\\pm}b$, is presented. The search targets $H^{\\pm}$ decays into a bottom and a charm quark, $H^{\\pm} \\rightarrow cb$. The analysis focuses on a selection enriched in top-quark pair production, where one top quark decays into a leptonically decaying $W$ boson and a bottom quark, and the other top quark decays into a charged Higgs boson and a bottom quark. This topology leads to a lepton-plus-jets final state, characterised by an isolated electron or muon and at least four jets. The search exploits the high multiplicity of jets containing $b$-hadrons, and deploys a neural network classifier that uses the kinematic differences between the signal and the background. The search uses a dataset of proton-proton collisions collected at a centre-of-mass energy $\\sqrt{s}=13$ TeV between 2015 and 2018 with the ATLAS detector at CERN's Large Hadron Collider, amounting to an integrated luminosity of 139 fb$^{-1}$. Observed (expected) 95% confidence-level upper limits between 0.15% (0.09%) and 0.42% (0.25%) are derived for the product of branching fractions $\\mathscr{B}(t\\rightarrow H^{\\pm}b) \\times \\mathscr{B}(H^{\\pm}\\rightarrow cb)$ for charged Higgs boson masses between 60 and 160 GeV, assuming the SM production of the top-quark pairs.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.135457.v1/t1","@type":"Dataset","description":"The observed 95% CL upper limits on $\\mathscr{B}=\\mathscr{B}(t\\rightarrow H^{\\pm}b) \\times \\mathscr{B}(H^{\\pm}\\rightarrow cb)$ as a function of $m_{H^{\\pm}}$ and the expectation...","name":"95% CL upper limits on $\\mathscr{B}$"},{"@id":"https://doi.org/10.17182/hepdata.135457.v1/t2","@type":"Dataset","description":"Pre-fit event yields in each of the nine analysis regions. The $H^{\\pm}$ signal yields for $m_{H^{\\pm}}=130$ GeV and $m_{H^{\\pm}}=70$ GeV...","name":"Pre-fit event yields"},{"@id":"https://doi.org/10.17182/hepdata.135457.v1/t3","@type":"Dataset","description":"Post-fit yields in each of the nine analysis regions considered. The total prediction is shown after the fit to data...","name":"Post-fit event yields"},{"@id":"https://doi.org/10.17182/hepdata.135457.v1/t4","@type":"Dataset","description":"Signal selection efficiency ($\\epsilon$) times acceptance ($A$) as a function of $H^{\\pm}$. The estimated $\\epsilon\\times A$ arises from the lepton...","name":"Acceptance"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2635801?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/135457"}],"inLanguage":"en","name":"Search for a light charged Higgs boson in $t \\rightarrow H^{\\pm}b$ decays, with $H^{\\pm} \\rightarrow cb$, in the lepton+jets final state in proton-proton collisions at $\\sqrt{s}=13$ TeV with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2635801?version=1","version":1}