资源描述：
《Charge symmetry at the partonic level》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、REVIEWSOFMODERNPHYSICS,VOLUME82,JULY–SEPTEMBER2010ChargesymmetryatthepartoniclevelJ.T.Londergan*DepartmentofPhysicsandNuclearTheoryCenter,IndianaUniversity,Bloomington,Indiana47404,USAJ.C.PengDepartmentofPhysics,UniversityofIllinoisatUrbana–Champaign,Ur
2、bana,Illinois61801,USAA.W.ThomasThomasJeffersonNationalLaboratory,12000JeffersonAvenue,NewportNews,Virginia23606,USAandCSSM,SchoolofChemistryandPhysics,UniversityofAdelaide,Adelaide,SouthAustralia5005,AustraliaPublished12July2010Thisreviewarticlediscu
3、ssestheexperimentalandtheoreticalstatusofpartonicchargesymmetry.ItisshownhowthepartoniccontentofvariousstructurefunctionsgetsredeÞnedwhentheassumptionofchargesymmetryisrelaxed.Varioustheoreticalandphenomenologicalmodelsforcharge-symmetryviolationinparto
4、ndistributionfunctionsarereviewed.Aftersummarizingthecurrentexperimentalupperlimitsoncharge-symmetryviolationinpartondistributions,aseriesofnewexperimentsareproposed,whichmightrevealpartoniccharge-symmetryviolationoralternativelymightlowerthecurrentuppe
5、rlimitsonpartoncharge-symmetryviolation.DOI:10.1103/RevModPhys.82.2009PACSnumbers:11.30.Hv,13.40.Ks,13.85.QkCONTENTSscattering20333.Chargedpionleptoproductionfromisoscalartargets2035I.ChargeSymmetryandPartonDistributions2009+WN04.Testofweakcurrentrela
6、tionF2xII.RelationsBetweenHigh-EnergyCrossSectionsand−WN0=F2x2037PartonDistributions2011IV.Charge-SymmetryViolationforSeaQuarks2038A.Generalformofhigh-energycrosssections2011A.EstimatesofseaquarkCSV2038B.Chargesymmetryandpartondistributionfunctions2
7、013B.LimitsonseaquarkCSV2039C.Structurefunctionsintermsofpartondistribution1.Wproductionasymmetryatahadronfunctions2014collider2040D.Relationsbetweenstructurefunctions20152.Limitsoncharge-symmetryviolationforIII.ChargeSymmetryinValenceQuarkDistributions
8、2016gluondistributions2040A.PhenomenologicalestimatesofvalencequarkCSV2016C.Charge-symmetrycontributionstoDISsumrules2041B.TheoreticalestimatesofvalencequarkCSV20171.Gottfriedsumrule:Seaquarkßavorand1.QEDsplitting:Anothersourceof
