# Search for charged Higgs bosons produced in association with a top quark and decaying via $H^{\pm} \rightarrow \tau\nu$ using $pp$ collision data recorded at $\sqrt{s} = 13$ TeV by the ATLAS detector

Abstract : Charged Higgs bosons produced in association with a single top quark and decaying via $H^{\pm} \rightarrow \tau\nu$ are searched for with the ATLAS experiment at the LHC, using proton-proton collision data at $\sqrt{s} = 13$ TeV corresponding to an integrated luminosity of 3.2 $\mathrm{fb}^{-1}$. The final state is characterised by the presence of a hadronic $\tau$ decay and missing transverse momentum, as well as a hadronically decaying top quark, resulting in the absence of high-transverse-momentum electrons and muons. The data are found to be consistent with the expected background from Standard Model processes. A statistical analysis leads to $95\%$ confidence-level upper limits on the production cross section times branching fraction, $\sigma(pp \rightarrow [b]t H^{\pm}) \times \mbox{BR}(H^{\pm} \rightarrow \tau\nu)$, between 1.9 pb and 15 fb, for charged Higgs boson masses ranging from 200 to 2000 GeV. The exclusion limits for this search surpass those obtained with the proton-proton collision data recorded at $\sqrt{s} = 8$ TeV.
Type de document :
Article dans une revue
Physics Letters B, Elsevier, 2016, 759, pp.555-574. 〈10.1016/j.physletb.2016.06.017〉

http://hal.in2p3.fr/in2p3-01295448
Contributeur : Danielle Cristofol <>
Soumis le : jeudi 31 mars 2016 - 09:02:47
Dernière modification le : lundi 9 juillet 2018 - 13:49:05

### Citation

G. Aad, M. Alstaty, M. Barbero, A. Calandri, T.P. Calvet, et al.. Search for charged Higgs bosons produced in association with a top quark and decaying via $H^{\pm} \rightarrow \tau\nu$ using $pp$ collision data recorded at $\sqrt{s} = 13$ TeV by the ATLAS detector. Physics Letters B, Elsevier, 2016, 759, pp.555-574. 〈10.1016/j.physletb.2016.06.017〉. 〈in2p3-01295448〉

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