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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
6
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pubmed:dateCreated |
2001-8-10
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pubmed:abstractText |
Using 12.7 fb(-1) of data collected with the CLEO detector at CESR, we observed two-photon production of the cc states chi(c0) and chi(c2) in their decay to pi(+)pi(-)pi(+)pi(-). We measured gamma(gammagamma)(chi(c))xB(chi(c)-->pi(+)pi(-)pi(+)pi(-)) to be 75+/-13(stat)+/-8(syst) eV for the chi(c0) and 6.4+/-1.8(stat)+/-0.8(syst) eV for the chi(c2), implying gamma(gammagamma)(chi(c0)) = 3.76+/-0.65(stat)+/-0.41(syst)+/-1.69(br) keV and gamma(gammagamma)(chi(c2)) = 0.53+/-0.15(stat)+/-0.06(syst)+/-0.22(br) keV. Also, cancellation of dominant experimental and theoretical uncertainties permits a precise comparison of gamma(gammagamma)(chi(c0))/gamma(gammagamma)(chi(c2)), evaluated to be 7.4+/-2.4(stat)+/-0.5(syst)+/-0.9(br), with QCD-based predictions.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0031-9007
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pubmed:author |
pubmed-author:WolfAA,
pubmed-author:SmithAA,
pubmed-author:ChenSS,
pubmed-author:KubotaYY,
pubmed-author:WilsonRR,
pubmed-author:WilliamsJJ,
pubmed-author:IUSAA,
pubmed-author:RomanoAA,
pubmed-author:BlancFF,
pubmed-author:AndersonSS,
pubmed-author:JohnsonEE,
pubmed-author:ShapiroAA,
pubmed-author:VogelHH,
pubmed-author:LeeJJ,
pubmed-author:EhrlichRR,
pubmed-author:HaraGG,
pubmed-author:AlexanderJ PJP,
pubmed-author:KaganHH,
pubmed-author:ErnstJJ,
pubmed-author:FergusonTT,
pubmed-author:PalmerMM,
pubmed-author:KoppSS,
pubmed-author:LindII,
pubmed-author:AhmedSS,
pubmed-author:SaleebFF,
pubmed-author:XuZZ,
pubmed-author:LeeS JSJ,
pubmed-author:WeinsteinA JAJ,
pubmed-author:EisensteinB IBI,
pubmed-author:McGeeSS,
pubmed-author:WangJ CJC,
pubmed-author:ViehhauserGG,
pubmed-author:PetersonDD,
pubmed-author:PattersonJ RJR,
pubmed-author:MillerD HDH,
pubmed-author:GrayS WSW,
pubmed-author:GibbonsLL,
pubmed-author:RileyDD,
pubmed-author:PlagerCC,
pubmed-author:MorrisonR JRJ,
pubmed-author:MahapatraRR,
pubmed-author:JonesC DCD,
pubmed-author:TanD TDT,
pubmed-author:MajumderGG,
pubmed-author:StoneSS,
pubmed-author:MountainRR,
pubmed-author:AveryPP,
pubmed-author:PrescottCC,
pubmed-author:EckhartEE,
pubmed-author:SeverineTT,
pubmed-author:YuZZ,
pubmed-author:ZhaoXX,
pubmed-author:ChenG PGP,
pubmed-author:JianLL,
pubmed-author:BeanAA,
pubmed-author:KimD YDY,
pubmed-author:LohnerMM,
pubmed-author:MarshM AMA,
pubmed-author:SunW MWM,
pubmed-author:FayJ RJR,
pubmed-author:AlamM SMS,
pubmed-author:MaselDD,
pubmed-author:DankoII,
pubmed-author:KassRR,
pubmed-author:MuckJJ,
pubmed-author:FrolovV VVV,
pubmed-author:HineT JTJ,
pubmed-author:NordbergEE,
pubmed-author:ArtusoMM,
pubmed-author:MileTT,
pubmed-author:BessonDD,
pubmed-author:GittelmanBB,
pubmed-author:BergerB EBE,
pubmed-author:CrowP GPG,
pubmed-author:TimmSS,
pubmed-author:AmmarRR,
pubmed-author:WarburtonAA,
pubmed-author:AnastassovAA,
pubmed-author:KostinMM,
pubmed-author:PappasS PSP,
pubmed-author:McLeanK WKW,
pubmed-author:AttonF MFM,
pubmed-author:BrandenburgGG,
pubmed-author:WapplerFF,
pubmed-author:PolingRR,
pubmed-author:SelenMM,
pubmed-author:HinsonJ WJW
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