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Search for Higgs bosons decaying to aa in the μμττ final state in pp collisions at s =8TeV with the ATLAS experiment

Aad G.
•
Abbott B.
•
Abdallah J.
altro
Zwalinski L.
2015
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
A search for the decay to a pair of new particles of either the 125 GeV Higgs boson (h) or a second charge parity (CP)-even Higgs boson (H) is presented. The data set corresponds to an integrated luminosity of 20.3 fb(-1) of pp collisions at root s = 8 TeV recorded by the ATLAS experiment at the LHC in 2012. The search was done in the context of the next-to-minimal supersymmetric standard model, in which the new particles are the lightest neutral pseudoscalar Higgs bosons (a). One of the two a bosons is required to decay to two muons while the other is required to decay to two tau leptons. No significant excess is observed above the expected backgrounds in the dimuon invariant mass range from 3.7 to 50 GeV. Upper limits are placed on the production of h -> aa relative to the standard model gg -> h production, assuming no coupling of the a boson to quarks. The most stringent limit is placed at 3.5% for m(a) = 3.75 GeV. Upper limits are also placed on the production cross section of H -> aa from 2.33 to 0.72 pb, for fixed m(a) = GeV with m(H) ranging from 100 to 500 GeV.
DOI
10.1103/PhysRevD.92.052002
WOS
WOS:000360885900001
Archivio
http://hdl.handle.net/11390/1097246
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84978024375
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978024375&partnerID=40&md5=845d9045167c83ef584c18e774c02ae9
Diritti
metadata only access
Web of Science© citazioni
23
Data di acquisizione
Mar 11, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
Vedi dettagli
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