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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
14
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pubmed:dateCreated |
2005-10-24
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pubmed:abstractText |
We study initial-state radiation events, e+ e- --> gammaISR pi+ pi- J/psi, with data collected with the BABAR detector. We observe an accumulation of events near 4.26 GeV/c2 in the invariant-mass spectrum of pi+ pi- J/psi. Fits to the mass spectrum indicate that a broad resonance with a mass of about 4.26 GeV/c2 is required to describe the observed structure. The presence of additional narrow resonances cannot be excluded. The fitted width of the broad resonance is 50 to 90 MeV/c2, depending on the fit hypothesis.
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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 |
Sep
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pubmed:issn |
0031-9007
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pubmed:author |
pubmed-author:SchubertJJ,
pubmed-author:WilsonJ RJR,
pubmed-author:GrazianiGG,
pubmed-author:AbeTT,
pubmed-author:SuzukiKK,
pubmed-author:WagnerGG,
pubmed-author:JohnsonJ RJR,
pubmed-author:BurkeJ PJP,
pubmed-author:BrownDD,
pubmed-author:GeorgeK AKA,
pubmed-author:WilsonM GMG,
pubmed-author:ChenSS,
pubmed-author:PetersKK,
pubmed-author:PeraFF,
pubmed-author:WandSS,
pubmed-author:BrandtTT,
pubmed-author:De GrootNN,
pubmed-author:ChengBB,
pubmed-author:KochHH,
pubmed-author:SofferAA,
pubmed-author:WilliamsGG,
pubmed-author:AhmedMM,
pubmed-author:BrownC MCM,
pubmed-author:ChenCC,
pubmed-author:WalshJJ,
pubmed-author:ZiaS HSH,
pubmed-author:EckmannRR,
pubmed-author:WagnerS RSR,
pubmed-author:LuCC,
pubmed-author:BaasUU,
pubmed-author:FreyRR,
pubmed-author:LundPP,
pubmed-author:WilliamsJ CJC,
pubmed-author:KitayamaII,
pubmed-author:BlancFF,
pubmed-author:TeodorescuLL,
pubmed-author:MarksJJ,
pubmed-author:ChanLL,
pubmed-author:LynchGG,
pubmed-author:FryJ RJR,
pubmed-author:TaylorFF,
pubmed-author:KhanAA,
pubmed-author:SeidelCC,
pubmed-author:MoriiMM,
pubmed-author:KaganHH,
pubmed-author:ClausRR,
pubmed-author:CapraRR,
pubmed-author:PayneD JDJ,
pubmed-author:GrahamMM,
pubmed-author:HaireMM,
pubmed-author:AngeliniCC,
pubmed-author:ChauveauJJ,
pubmed-author:BrownC LCL,
pubmed-author:LegendreMM,
pubmed-author:AlbertJJ,
pubmed-author:WandHH,
pubmed-author:WrightD HDH,
pubmed-author:SwainSS,
pubmed-author:PaolucciPP,
pubmed-author:BrunetSS,
pubmed-author:OlsenJJ,
pubmed-author:WilsonR JRJ,
pubmed-author:ThompsonJ MJM,
pubmed-author:KoflerRR,
pubmed-author:BernardDD,
pubmed-author:BianchiFF,
pubmed-author:MacriMM,
pubmed-author:EmerySS,
pubmed-author:RaoS VSV,
pubmed-author:ForthEE,
pubmed-author:OlivanJJ,
pubmed-author:WuJJ,
pubmed-author:BangH OHO,
pubmed-author:DavisC LCL,
pubmed-author:AhmedSS,
pubmed-author:SaleebFF,
pubmed-author:BonaMM,
pubmed-author:ReidyJJ,
pubmed-author:NealHH,
pubmed-author:WilliamsD CDC,
pubmed-author:KimHH,
pubmed-author:LidMM,
pubmed-author:DavidPP,
pubmed-author:HopkinsD ADA,
pubmed-author:RitchieJ LJL
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