Searches for a heavy scalar boson H decaying to a pair of 125 GeV Higgs bosons hh or for a heavy pseudoscalar boson A decaying to Zh, in the final states with h to tau tau

CMS;Basegmez, Suzan;Beluffi, Camille;Bondu, Olivier;Vidal Maroño, Miguel;et.al.
(2016) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. B755, n° 755, p. 217-244 (2016)

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Authors
  • CMSUCLouvain
    Author
  • Basegmez, SuzanUCLouvain
    Author
  • Beluffi, CamilleUCLouvain
    Author
  • Bondu, OlivierUCLouvain
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  • Brochet, SébastienUCLouvain
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  • Author
  • Castello, RobertoUCLouvain
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  • Caudron, AdrienUCLouvain
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  • Ceard, LudivineUCLouvain
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  • Da Silveira, Gustavo GilUCLouvain
    Author
  • Author
  • Favart, DenisUCLouvain
    Author
  • Forthomme, LaurentUCLouvain
    Author
  • Author
  • Hollar, JonathanUCLouvain
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  • Jafari, AbidehUCLouvain
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  • Jez, PavelUCLouvain
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  • Komm, MatthiasUCLouvain
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  • Author
  • Mertens, AlexandreUCLouvain
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  • Nuttens, ClaudeUCLouvain
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  • Perrini, LuciaUCLouvain
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  • Pin, ArnaudUCLouvain
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  • Piotrzkowski, KrzysztofUCLouvain
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  • Popov, AndreyUCLouvain
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  • Author
  • Selvaggi, MicheleUCLouvain
    Author
  • Vidal Maroño, MiguelUCLouvain
    Author
  • et. al.
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Abstract
A search for a heavy scalar boson H decaying into a pair of lighter standard-model-like 125 GeV Higgs bosons h and a search for a heavy pseudoscalar boson A decaying into a Z and an h boson are presented. The searches are performed on a data set corresponding to an integrated luminosity of 19.7 inverse femtobarns of pp collision data at a centre-of-mass energy of 8 TeV, collected by CMS in 2012. A final state consisting of two tau leptons and two b jets is used to search for the H to hh decay. A final state consisting of two tau leptons from the h boson decay, and two additional leptons from the Z boson decay, is used to search for the decay A to Zh. The results are interpreted in the context of the two-Higgs-doublet models. No excess is found above the standard model expectation and upper limits are set on the heavy boson production cross sections in the mass ranges 260 < m[H] < 350 GeV and 220 < m[A] < 350 GeV.
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Citations

CMS, Basegmez, S., Beluffi, C., Bondu, O., Brochet, S., Bruno, G., Castello, R., Caudron, A., Ceard, L., Da Silveira, G. G., Delaere, C., Favart, D., Forthomme, L., Giammanco, A., Hollar, J., Jafari, A., Jez, P., Komm, M., Lemaitre, V., et al. (2016). Searches for a heavy scalar boson H decaying to a pair of 125 GeV Higgs bosons hh or for a heavy pseudoscalar boson A decaying to Zh, in the final states with h to tau tau. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, B755(755), 217-244. https://doi.org/10.1016/j.physletb.2016.01.056 (Original work published 2016)