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Abstract:

A search for heavy pseudoscalar (A) and scalar (H) Higgs bosons decaying into a top quark pair (tt) 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 s=8 TeV. Interference effects between the signal process and standard model tt 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 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 mA/H and the ratio of the vacuum expectation values of the two Higgs fields, tanβ, for mA/H>500 GeV. © 2017 CERN.

Registro:

Documento: Artículo
Título:Search for Heavy Higgs Bosons A /H Decaying to a Top Quark Pair in pp Collisions at s =8 TeV with the ATLAS Detector
Autor:Aaboud, M. et al.
Este artículo contiene 2878 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2878 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Elementary particles; High energy physics; Mass spectrometry; Signal processing; Tellurium compounds; Expectation values; Higgs doublet models; Interference effects; Invariant-mass spectra; Large Hadron Collider; Proton proton collisions; The standard model; Transverse momenta; Bosons
Año:2017
Volumen:119
Número:19
DOI: http://dx.doi.org/10.1103/PhysRevLett.119.191803
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v119_n19_p_Aaboud

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Citas:

---------- APA ----------
(2017) . Search for Heavy Higgs Bosons A /H Decaying to a Top Quark Pair in pp Collisions at s =8 TeV with the ATLAS Detector. Physical Review Letters, 119(19).
http://dx.doi.org/10.1103/PhysRevLett.119.191803
---------- CHICAGO ----------
Aaboud, M. "Search for Heavy Higgs Bosons A /H Decaying to a Top Quark Pair in pp Collisions at s =8 TeV with the ATLAS Detector" . Physical Review Letters 119, no. 19 (2017).
http://dx.doi.org/10.1103/PhysRevLett.119.191803
---------- MLA ----------
Aaboud, M. "Search for Heavy Higgs Bosons A /H Decaying to a Top Quark Pair in pp Collisions at s =8 TeV with the ATLAS Detector" . Physical Review Letters, vol. 119, no. 19, 2017.
http://dx.doi.org/10.1103/PhysRevLett.119.191803
---------- VANCOUVER ----------
Aaboud, M. Search for Heavy Higgs Bosons A /H Decaying to a Top Quark Pair in pp Collisions at s =8 TeV with the ATLAS Detector. Phys Rev Lett. 2017;119(19).
http://dx.doi.org/10.1103/PhysRevLett.119.191803