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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
19
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pubmed:dateCreated |
2010-9-27
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pubmed:abstractText |
The ratio R(??)(?(1S))=?(?(1S)??+ ?-)/?(?(1S)??+ ?-) is measured using a sample of (121.8±1.2)×10(6)?(3S) events recorded by the BABAR detector. This measurement is intended as a test of lepton universality and as a search for a possible light pseudoscalar Higgs boson. In the standard model (SM) this ratio is expected to be close to 1. Any significant deviations would violate lepton universality and could be introduced by the coupling to a light pseudoscalar Higgs boson. The analysis studies the decays ?(3S)??(1S)?+ ?-, ?(1S)?l+ l-, where l=?, ?. The result, R(??)(?(1S))=1.005±0.013(stat)±0.022(syst), shows no deviation from the expected SM value, while improving the precision with respect to previous measurements.
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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 |
May
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pubmed:issn |
1079-7114
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pubmed:author |
pubmed-author:WilsonJ RJR,
pubmed-author:LUGG,
pubmed-author:SuzukiKK,
pubmed-author:BurkeJ PJP,
pubmed-author:TanabeTT,
pubmed-author:PeraFF,
pubmed-author:KochHH,
pubmed-author:SofferAA,
pubmed-author:ChenCC,
pubmed-author:ZiaS HSH,
pubmed-author:SerranoJJ,
pubmed-author:EckmannRR,
pubmed-author:WagnerS RSR,
pubmed-author:LuCC,
pubmed-author:LindquistBB,
pubmed-author:JacksonGG,
pubmed-author:FreyRR,
pubmed-author:LundPP,
pubmed-author:AndersonJJ,
pubmed-author:LisHH,
pubmed-author:MarksJJ,
pubmed-author:KingG JGJ,
pubmed-author:LynchGG,
pubmed-author:FryJ RJR,
pubmed-author:WangLL,
pubmed-author:KhanAA,
pubmed-author:SeidelCC,
pubmed-author:BaileyDD,
pubmed-author:MoriiMM,
pubmed-author:PayneD JDJ,
pubmed-author:MartinezA JAJ,
pubmed-author:AngeliniCC,
pubmed-author:ChauveauJJ,
pubmed-author:AlbertJJ,
pubmed-author:WrightD HDH,
pubmed-author:OlsenJJ,
pubmed-author:ThompsonJ MJM,
pubmed-author:BernardDD,
pubmed-author:BianchiFF,
pubmed-author:EmerySS,
pubmed-author:ForthEE,
pubmed-author:BiassoniPP,
pubmed-author:BangH OHO,
pubmed-author:DavisC LCL,
pubmed-author:AhmedSS,
pubmed-author:NealHH,
pubmed-author:KimHH,
pubmed-author:SunLL,
pubmed-author:RitchieJ LJL,
pubmed-author:SaccoRR,
pubmed-author:MartinE CEC,
pubmed-author:EdwardsA JAJ,
pubmed-author:HamanoKK,
pubmed-author:MartinelliMM,
pubmed-author:CurrySS,
pubmed-author:FranchiniPP,
pubmed-author:ITOI YIY,
pubmed-author:SharmaVV,
pubmed-author:RizzoGG,
pubmed-author:LombardiLL,
pubmed-author:SchenkSS,
pubmed-author:ZieglerVV,
pubmed-author:CalderiniGG,
pubmed-author:PalDD,
pubmed-author:EbertMM,
pubmed-author:SnyderAA,
pubmed-author:HartmannTT,
pubmed-author:MorrisJ PJP,
pubmed-author:SchubertK RKR,
pubmed-author:WestC ACA,
pubmed-author:EigelAA,
pubmed-author:GuttmanNN,
pubmed-author:PiccoliGG,
pubmed-author:PerezAA,
pubmed-author:NagelMM,
pubmed-author:ZainS BSB,
pubmed-author:ChengC HCH,
pubmed-author:WrightD MDM,
pubmed-author:DanøKK,
pubmed-author:BattagliaMM,
pubmed-author:SchröderHH,
pubmed-author:GrenierPP,
pubmed-author:RubinA EAE,
pubmed-author:MerkerLL,
pubmed-author:SchramMM,
pubmed-author:SantoraDD,
pubmed-author:FacciniRR
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