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Search for charged Higgs bosons decaying via H ± ?t ± ? t in the t +jets and t +lepton final states with 36 fb -1 of pp collision data recorded at vs =13 TeV with the ATLAS experiment

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posted on 2023-06-09, 15:49 authored by The ATLAS Collaboration, N L Abraham, Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Samuel Jones, G Lerner, F Miano, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, Kate ShawKate Shaw, Thomas StevensonThomas Stevenson, K Suruliz, Mark SuttonMark Sutton, F Tresoldi, Fabrizio Trovato, Iacopo Vivarelli, E Winkels, O J Winston, others
Charged Higgs bosons produced either in top-quark decays or in association with a top-quark, subsequently decaying via H ± ?t ± ? t , are searched for in 36.1 fb -1 of proton-proton collision data at s v =13 TeV recorded with the ATLAS detector. Depending on whether the top-quark produced together with H ± decays hadronically or leptonically, the search targets t +jets and t +lepton final states, in both cases with a hadronically decaying t -lepton. No evidence of a charged Higgs boson is found. For the mass range of m H ± = 90-2000 GeV, upper limits at the 95% confidence level are set on the production cross-section of the charged Higgs boson times the branching fraction B(H ± ?t ± ? t ) in the range 4.2-0.0025 pb. In the mass range 90-160 GeV, assuming the Standard Model cross-section for tt ¯ production, this corresponds to upper limits between 0.25% and 0.031% for the branching fraction B(t?bH ± )×B(H ± ?t ± ? t )

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of High Energy Physics

ISSN

1126-6708

Publisher

Springer Verlag

Issue

139

Volume

9

Page range

1-47

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Experimental Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2018-11-09

First Open Access (FOA) Date

2018-11-09

First Compliant Deposit (FCD) Date

2018-11-08

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