KIT | KIT-Bibliothek | Impressum | Datenschutz

Search for heavy resonances decaying into a vector boson and a Higgs boson in final states with charged leptons, neutrinos, and b quarks

CMS Collaboration; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; König, A.; Krätschmer, I.; ... mehr

Abstract:
A search for heavy resonances decaying to a Higgs boson and a vector boson is presented. The analysis is performed using data samples collected in 2015 by the CMS experiment at the LHC in proton–proton collisions at a center-of-mass energy of 13 TeV, corresponding to integrated luminosities of 2.2–2.5 fb−1. The search is performed in channels in which the vector boson decays into leptonic final states (
Z→νν
,
W→ℓν
, and
Z→ℓℓ
, with
ℓ=e,μ
), while the Higgs boson decays to collimated b quark pairs detected as a single massive jet. The discriminating power of a jet mass requirement and a b jet tagging algorithm are exploited to suppress the standard model backgrounds. The event yields observed in data are consistent with the background expectation. In the context of a theoretical model with a heavy vector triplet, a resonance with mass less than 2 TeV is excluded at 95% confidence level. The results are also interpreted in terms of limits on the parameters of the model, improving on the reach of previous searches.

Open Access Logo


Volltext §
DOI: 10.5445/IR/1000067525
Originalveröffentlichung
DOI: 10.1016/j.physletb.2017.02.040
Scopus
Zitationen: 16
Web of Science
Zitationen: 19
Seitenaufrufe: 15
seit 04.05.2018
Downloads: 16
seit 02.09.2017
Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 0370-2693, 1873-2445
urn:nbn:de:swb:90-675250
KITopen-ID: 1000067525
HGF-Programm 51.03.03 (POF III, LK 01)
Erschienen in Physics letters / B
Band 768
Seiten 137-162
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Schlagworte CMS; Physics; B2G; Diboson; VH; Semileptonic
Nachgewiesen in Web of Science
Scopus
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page