4 documents found, page 1 of 1
Measurement of the c-jet mistagging efficiency in tt¯ events using pp collision...
Castro, N. F.; Fiolhais, M. C. N.; Gonçalo, J. R.; Onofre, A.; Veloso, F.; Wolters, H.; Atlas CollaborationA technique is presented to measure the efficiency with which c-jets are mistagged as b-jets (mistagging efficiency) using t ¯t events, where one of theW bosons decays into an electron or muon and a neutrino and the other decays into a quark–antiquark pair. The measurement utilises the relatively large and known W → cs branching ratio, which allows ameasurement to be made in an inclusive c-jet sample. The data ...
Erratum to: Search for single top-quark production via flavour-changing neutral...
Santos, S. P. Amor dos; Carvalho, J.; Fiolhais, M. C. N.; Galhardo, B.; Onofre, A.; Veloso, F.; Wolters, H.; Atlas Collaboration
Performance of the ATLAS Level-1 topological trigger in Run 2
Fiolhais, M. C. N.; Gonçalo, J. R.; Onofre, A.; Veloso, F.; Wolters, H.; Atlas Collaboration
Search for charged Higgs bosons decaying into a top quark and a bottom quark at...
Fiolhais, M. C. N.; Veloso, F.; Wolters, H.; Gonçalo, R.; Atlas CollaborationA search for charged Higgs bosons decaying into a top quark and a bottom quark is presented. The data analysed correspond to 139 fb−1 of proton-proton collisions at p s = 13TeV, recorded with the ATLAS detector at the LHC. The production of a heavy charged Higgs boson in association with a top quark and a bottom quark, pp ! tbH+ ! tbtb, is explored in the H+ mass range from 200 to 2000 GeV using final states wi...