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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
23
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pubmed:dateCreated |
2006-6-28
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pubmed:abstractText |
Observation of Upsilon(4S) decays to pi(+)pi(-)C and pi(+)pi(-)Upsilon(2S)We present the first measurement of Upsilon(4S) decays to pi(+)pi(-)Upsilon(1S) based on a sample of 230 x 106(4S) mesons collected with the BABAR detector. We measure the product branching fractions Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S)) x BetaUpsilon(1S) --> mu(+)mu(-) = (2.23 +/- 0.25(stat) +/- 0.27(syst))x 10(-6) and Beta(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S) x Beta(Upsilon(2S) --> mu(+)mu(-))=(1.69 +/-0.26(stat) +/- 0.20(syst)) x 10(-)6, from which we derive the partial widths Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(1S))=(1.8 +/-0.4) keV and Gamma(Upsilon(4S) --> pi(+)pi(-)Upsilon(2S))=(2.7 +/- 0.8) keV.
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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 |
Jun
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pubmed:issn |
0031-9007
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pubmed:author |
pubmed-author:SchubertJJ,
pubmed-author:WilsonJ RJR,
pubmed-author:LUGG,
pubmed-author:SuzukiKK,
pubmed-author:BurkeJ PJP,
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:BrownC MCM,
pubmed-author:ChenCC,
pubmed-author:WalshJJ,
pubmed-author:ZiaS HSH,
pubmed-author:WalkerDD,
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: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:PaolucciPP,
pubmed-author:BrunetSS,
pubmed-author:OlsenJJ,
pubmed-author:WilsonR JRJ,
pubmed-author:ThompsonJ MJM,
pubmed-author:BernardDD,
pubmed-author:BianchiFF,
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,
pubmed-author:SaccoRR,
pubmed-author:ChanGG,
pubmed-author:EdwardsA JAJ,
pubmed-author:HamanoKK,
pubmed-author:CurrySS,
pubmed-author:BelliniFF,
pubmed-author:LuMM,
pubmed-author:ITOI YIY,
pubmed-author:SharmaVV,
pubmed-author:RizzoGG
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