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1.	Milstead, David A., et al. (author) Search for flavor-changing neutral currents in top quark decays t →hc and t →hu in multilepton final states in proton-proton collisions at s =13 TeV with the ATLAS detector 2018 In: Physical Review D. - 2470-0010 .- 2470-0029. ; 98:3 Journal article (peer-reviewed)abstract Flavor-changing neutral currents are not present in the Standard Model at tree level and are suppressed in loop processes by the unitarity of the Cabibbo-Kobayashi-Maskawa matrix; the corresponding rates for top quark decay processes are experimentally unobservable. Extensions of the Standard Model can generate new flavor-changing neutral current processes, leading to signals which, if observed, would be unambiguous evidence of new interactions. A data set corresponding to an integrated luminosity of 36.1 fb-1 of pp collisions at a center-of-mass energy of s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider is used to search for top quarks decaying to up or charm quarks with the emission of a Higgs boson, with subsequent Higgs boson decay to final states with at least one electron or muon. No signal is observed and limits on the branching fractions B(t→Hc)

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Type of publication: journal article (1)

Type of content: peer-reviewed (1)

Author/Editor: Åkesson, Torsten (1); Bocchetta, Simona (1); Doglioni, Caterina (1); Hedberg, Vincent (1); Jarlskog, Göran (1); Kalderon, Charles (1); show more...; Lytken, Else (1); Mjörnmark, Ulf (1); Poulsen, Trine (1); Smirnova, Oxana (1); Viazlo, Oleksandr (1); Lund-Jensen, Bengt (1); Sidebo, P. Edvin (1); Ripellino, Giulia (1); Strandberg, Jonas (1); Zwalinski, L. (1); Corrigan, Eric (1); Brottmann Hansen, Ev ... (1); Kellermann, Edgar (1); Konya, Balazs (1); Mankinen, Katja (1); Pöttgen, Ruth (1); Kastanas, Konstatino ... (1); Ohm, Christian (1); Bokan, Petar (1); Brenner, Richard (1); Ekelöf, Tord (1); Ellert, Mattias (1); Gradin, P.O. Joakim (1); Isacson, Max (1); Sales De Bruin, Pedr ... (1); Asimakopoulou, Eleni ... (1); Bergeås Kuutmann, El ... (1); Ferrari, Arnaud, 197 ... (1); Silverstein, Samuel ... (1); Moa, Torbjörn (1); Hellman, Sten (1); Jon-And, Kerstin (1); Ughetto, Michaël (1); Clement, Christophe (1); Milstead, David A. (1); Shaikh, Nabila W. (1); Sjölin, Jörgen (1); Valdés Santurio, Edu ... (1); Wallängen, Veronica (1); Bertoli, Gabriele (1); Carney, Rebecca M. D ... (1); Gellerstedt, Karl (1); Molander, Simon (1); Bessidskaia Bylund, ... (1); show less...

University: Royal Institute of Technology (1); Uppsala University (1); Stockholm University (1); Lund University (1)

Language: English (1)

Research subject (UKÄ/SCB): Natural sciences (1)

Year: 2018 (1)

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