Half-time PhD seminar: search for pairs of Higgs bosons in the b b tau tau decay channel with the ATLAS detector

  • Datum: –11.30
  • Plats: Ångströmlaboratoriet Å80115
  • Föreläsare: Petar Bokan, Uppsala University / Göttingen University
  • Webbsida
  • Kontaktperson: Elin Bergeås Kuutmann
  • Telefon: 018-471 3828
  • Seminarium

Half-time PhD seminar, abou high energy physics with the ATLAS experiment


After the discovery of the Higgs boson, the ultimate test of the electroweak symmetry breaking is to establish Higgs self-coupling by searching for the pair production of Higgs bosons. A search for non-resonant and resonant Higgs boson
pair production in the b b τ τ  channel is presented for 36.1 fb −1 of √s = 13 TeV data recorded at the ATLAS experiment at the Large Hadron Collider (LHC).

In addition to the pair of b-tagged jets, the analysis considers semi-leptonic and fully hadronic di-tau-lepton final states. These results are extrapolated to a 14 TeV center-of-mass energy and 3000 fb−1 , which is the target integrated luminosity of the High Luminosity LHC to provide an estimation of the sensitivity to the Higgs self-coupling strength. Different trigger scenarios and possible reductions of the systematic uncertainties are discussed.

The b b τ τ results are combined with the results obtained from studying the
b b b b and b b γ γ decay channels and presented as well.