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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 → ττ
Journal article   Open access   Peer reviewed

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 → ττ

V Khachatryan, A.M Sirunyan, A Tumasyan, Yasar Onel and CMS Collaboration
Physics letters. B, Vol.755, pp.217-244
04/10/2016
DOI: 10.1016/j.physletb.2016.01.056
url
https://doi.org/10.1016/j.physletb.2016.01.056View
Published (Version of record) Open Access

Abstract

Byline: V. Khachatryan, A.M. Sirunyan, A. Tumasyan A search for a heavy scalar boson H decaying into a pair of lighter standard-model-like 125 GeV Higgs bosons hh 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 fb.sup.-1 of pp collision data at a centre-of-mass energy of 8 TeV, collected by CMS in 2012. A final state consisting of two I leptons and two b jets is used to search for the H[right arrow]hh decay. A final state consisting of two I leptons from the h boson decay, and two additional leptons from the Z boson decay, is used to search for the decay A[right arrow]Zh. The results are interpreted in the context of 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.sub.H<350GeV and 220<m.sub.A<350GeV. Author Affiliation: Yerevan Physics Institute, Yerevan, Armenia Article History: Received 5 October 2015; Revised 10 January 2016; Accepted 26 January 2016 Article Note: (miscellaneous) Editor: M. Doser

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