Search for Disoriented Chiral Condensates in 158 AGeV Pb+Pb(10)

The restoration of chiral symmetry and its subsequent breaking through a phase transition has been predicted to create regions of Disoriented Chiral Condensates (DCC). This phenomenon has been predicted to cause anomalous fluctuations in the relative produ

TheseaxesareshownsuperimposedonFigure3andtheprojectionalongtheZ-axisisshowninFigure4a.ThefullprojectionalongtheDZ-axisisshowninFigure4b.Toaverygoodapproximation,thedataareGaussiandistributed,whichisconsistentwithbinomialpartition.TheVENUSresults,shownbythehistogram,arealsoGaussian,butwithaslightlysmallerwidth.Inbothcases,σDZ,thestandarddeviationofagaussian tintheDZdi-rection,increaseswithincreasingZ.WehavechosentoworkwiththescaledvariableSZ≡DZ/σDZinordertocomparerelative uctuationsatdi erent√multiplicities.Whilebinomialpartitionleadsto uctuationsthatgrowas