Search for Disoriented Chiral Condensates in 158 AGeV Pb+Pb(3)
发布时间:2021-06-05
发布时间:2021-06-05
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
1Introduction
TheapproximatechiralsymmetryoftheQCDvacuumisbelievedtobespon-taneouslybrokeninnaturebytheformationofanisoscalarquarkconden-sate.DisorientedChiralCondensates(DCC)mayforminlarge,hotregionsofhadronicmatterwherethissymmetryhasbeenbrie yrestored[1].ADCChasanequalprobabilitytobeinanystaterelatedtothenormalvacuumbyachiralrotation.Byprojectingthespaceoftheseavailablestatesontoaba-sisofde niteisospin,ithasbeenfoundthatthechargedistributionofpionsemittedfromaDCChasacharacteristicform[2]:
P(f)=1
f(1)
wherefistheneutralfraction,
f=Nπo
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