Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two muons and two b quarks in pp collisions at 13 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
AsearchforexoticdecaysoftheHiggsbosontoapairoflightpseudoscalarparticlesa1isperformedunderthehypothesisthatoneofthepseudoscalarsdecaystoapairofoppositesignmuonsandtheotherdecaystobb.Suchsignaturesarepredictedinanumberofextensionsofthestandardmodel(SM),includingnext-to-minimalsupersymmetryandtwo-Higgs-doubletmodelswithanadditionalscalarsinglet.Theresultsarebasedonadatasetofproton-protoncollisionscorrespondingtoanintegratedluminosityof35.9fb−1,accumulatedwiththeCMSexperimentattheCERNLHCin2016atacentre-of-massenergyof13 TeV.NostatisticallysignificantexcessisobservedwithrespecttotheSMbackgroundsinthesearchregionforpseudoscalarmassesfrom20 GeVtohalfoftheHiggsbosonmass.Upperlimitsat95%confidencelevelaresetontheproductoftheproductioncrosssectionandbranchingfraction,σhB(h→a1a1→μ+μ−bb),rangingfrom5to33 fb,dependingonthepseudoscalarmass.Correspondinglimitsonthebranchingfraction,assumingtheSMpredictionforσh,are(1–7)×10−4.
Date Issued
2019-08-10
Date Acceptance
2019-06-11
Citation
Journal of High Energy Physics, 2019, 795, pp.398-423
ISSN
1126-6708
Publisher
Elsevier
Start Page
398
End Page
423
Journal / Book Title
Journal of High Energy Physics
Volume
795
Copyright Statement
©2019TheAuthor(s).PublishedbyElsevierB.V.ThisisanopenaccessarticleundertheCCBYlicense(http://creativecommons.org/licenses/by/4.0/). FundedbySCOAP3
Identifier
https://www.sciencedirect.com/science/article/pii/S0370269319303995?via%3Dihub#!
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
Physics
CMS
BSM Higgs physics
ROOT-S=13 TEV
hep-ex
hep-ex
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
Nuclear & Particles Physics
Publication Status
Published
Date Publish Online
2019-06-13