Search for anomalous production of multiple leptons in association with W and Z bosons at CDF

Abstract

Thispaperpresentsasearchforanomalousproductionofmultiplelow-energyleptonsinassociation withaWorZbosonusingeventscollectedattheCDFexperimentcorrespondingto5:1fb1ofintegrated luminosity.Thissearchissensitivetoawiderangeoftopologieswithlow-momentumleptons,including thosewiththeleptonsnearoneanother.Theobservedratesofproductionofadditionalelectronsand muonsarecomparedwiththestandardmodelpredictions.Noindicationsofphenomenabeyondthe standardmodelarefound.A95%confidencelevellimitispresentedontheproductioncrosssectionfora benchmarkmodelofsupersymmetrichidden-valleyHiggsproduction.Particleidentificationefficiencies arealsoprovidedtoenablethecalculationoflimitsonadditionalmodels.