Search for the Standard Model Higgs Boson Decaying to a bb? Pair in Events with No Charged Leptons and Large Missing Transverse Energy using the Full CDF Data Set

Abstract

WereportonasearchforthestandardmodelHiggsbosonproducedinassociationwithavectorboson inthefulldatasetofproton-antiprotoncollisionsatffisffiffi p 1:96TeVrecordedbytheCDFIIdetectoratthe Tevatron,correspondingtoanintegratedluminosityof9:45fb1.Weconsidereventshavingnoidentified chargedlepton,atransverseenergyimbalance,andtwoorthreejets,ofwhichatleastoneisconsistent withoriginatingfromthedecayofabquark.Weplace95%credibilitylevelupperlimitsonthe productioncrosssectiontimesstandardmodelbranchingfractionforseveralmasshypothesesbetween 90and150GeV=c2.ForaHiggsbosonmassof125GeV=c2,theobserved(expected)limitis6.7(3.6) timesthestandardmodelprediction.