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Search for heavy Higgs Bosons A/H decaying to a top quark pair in pp collisions at sqrt[s]=8 TeV with the ATLAS Detector
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ATLAS Collaboration (Including: Beckingham, M., Ennis, Joseph Stanford, Farrington, Sinead, Harrison, P. F., Jelinskas, Adomas, Jeske, C., Martin, T. A., Murray, W., Pianori, E. and Spangenberg, Martin). (2017) Search for heavy Higgs Bosons A/H decaying to a top quark pair in pp collisions at sqrt[s]=8 TeV with the ATLAS Detector. Physical Review Letters, 119 (19). 191803. doi:10.1103/PhysRevLett.119.191803
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Official URL: http://doi.org/10.1103/PhysRevLett.119.191803
Abstract
A search for heavy pseudoscalar (A) and scalar (H) Higgs bosons decaying into a top quark pair (tt[over ¯]) has been performed with 20.3 fb^{-1} of proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a center-of-mass energy sqrt[s]=8 TeV. Interference effects between the signal process and standard model tt[over ¯] production, which are expected to distort the signal shape from a single peak to a peak-dip structure, are taken into account. No significant deviation from the standard model prediction is observed in the tt[over ¯] invariant mass spectrum in final states with an electron or muon, large missing transverse momentum, and at least four jets. The results are interpreted within the context of a type-II two-Higgs-doublet model. Exclusion limits on the signal strength are derived as a function of the mass m_{A/H} and the ratio of the vacuum expectation values of the two Higgs fields, tanβ, for m_{A/H}>500 GeV.
| Item Type: | Journal Article | ||||||
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| Divisions: | Faculty of Science > Physics | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Journal or Publication Title: | Physical Review Letters | ||||||
| Publisher: | American Physical Society | ||||||
| ISSN: | 0031-9007 | ||||||
| Official Date: | 10 November 2017 | ||||||
| Dates: |
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| Volume: | 119 | ||||||
| Number: | 19 | ||||||
| Article Number: | 191803 | ||||||
| DOI: | 10.1103/PhysRevLett.119.191803 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Publisher Statement: | ** From PubMed via Jisc Publications Router. ** History: received 20-07-2017. | ||||||
| Access rights to Published version: | Open Access |
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