Conference Presentation

PUBDB-2019-03388

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Search for a pair of pseudoscalars in decays of the Higgs boson in CMS

Consuegra Rodriguez, S. (Corresponding author)DESY* ; CMS Collaboration (Collaboration author)DESY*

2019

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Please use a persistent id in citations: doi:10.3204/PUBDB-2019-03388

Abstract: Searches for additional Higgs bosons, based on predictions beyond the Standard Model (SM) have become an intensive subject of study within LHC scientific program. A vast set of models containing two Higgs doublets plus one additional Higgs singlet complex field (2HD+1S) are consistent with constraints from additional Higgs bosons measurements, searches for supersymmetry, as well as with the measured properties of the H(125) boson. The Higgs sector of the 2HD+1S models features seven physical states: three CP-even, two CP-odd and two charged bosons. According to current constraints on the H(125) couplings, which allow a non-negligible branching fraction for H(125) decays into non-SM particles, the lightest pseudoscalar boson a1 is potentially accessible in the H(125)→ a1a1 decay, with a sufficiently high rate to be detected at the LHC. In this talk searches for a pair of a1 pseudoscalars, performed with CMS data, will be presented. Different mass range, which plays an important role in the selection of the analysis strategy, and different final states will be covered.

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. LHC: CMS

Appears in the scientific report 2019

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