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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 |
2011-3-16
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pubmed:abstractText |
Large parity-violating longitudinal single-spin asymmetries A(L)(e+) = -0.86(-0.14) (+0.30) and A(L)(e-) = 0.88(-0.71) (+0.12) are observed for inclusive high transverse momentum electrons and positrons in polarized p+p collisions at a center-of-mass energy of sqrt[s] = 500 GeV with the PHENIX detector at RHIC. These e± come mainly from the decay of W± and Z0 bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W± to the light quarks. The observed electron and positron yields were used to estimate W± boson production cross sections for the e± channels of ?(pp ? W+ X) × BR(W+ ? e+ ?(e)) = 144.1 ± 21.2(stat)(-10.3) (+3.4) (syst) ± 21.6(norm)? pb, and ?(pp ? W- X) × BR(W- ? e- ?[over ¯](e)) = 31.7 ± 12.1(stat)(-8.2) (+10.1) (syst) ± 4.8(norm)? pb.
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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 |
Feb
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pubmed:issn |
1079-7114
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pubmed:author |
pubmed-author:SatoTT,
pubmed-author:ImaiKK,
pubmed-author:LeeS HSH,
pubmed-author:HoriYY,
pubmed-author:WatanabeKK,
pubmed-author:SanoSS,
pubmed-author:JohnsonB MBM,
pubmed-author:OkiEE,
pubmed-author:TanakaYY,
pubmed-author:WatanabeYY,
pubmed-author:SinghC PCP,
pubmed-author:NakamuraTT,
pubmed-author:HashimotoKK,
pubmed-author:AlexanderJJ,
pubmed-author:SharmaDD,
pubmed-author:KasaiMM,
pubmed-author:LeeK SKS,
pubmed-author:ThemannHH,
pubmed-author:SinghVV,
pubmed-author:OskarssonAA,
pubmed-author:MiyachiYY,
pubmed-author:AokiKK,
pubmed-author:ShinH KHK,
pubmed-author:IkedaYY,
pubmed-author:MorinoYY,
pubmed-author:ThomasDD,
pubmed-author:AramakiYY,
pubmed-author:LebS MSM,
pubmed-author:InabaMM,
pubmed-author:GotoYY,
pubmed-author:OkadaKK,
pubmed-author:O'BrienEE,
pubmed-author:GrafAA,
pubmed-author:YUH IHI,
pubmed-author:SaitoNN,
pubmed-author:HarperCC,
pubmed-author:MikiKK,
pubmed-author:DreesAA,
pubmed-author:LeeJJ,
pubmed-author:MurakamiTT,
pubmed-author:HuangSS,
pubmed-author:ShuklaPP,
pubmed-author:CampbellSS,
pubmed-author:WesselsJJ,
pubmed-author:NakanoKK,
pubmed-author:IshiharaMM,
pubmed-author:AkibaYY,
pubmed-author:LiuHH,
pubmed-author:ShojiKK,
pubmed-author:FadenAA,
pubmed-author:KonnoMM,
pubmed-author:KuritaKK,
pubmed-author:JonesTT,
pubmed-author:MendozaMM,
pubmed-author:ValeCC,
pubmed-author:PERM IMI,
pubmed-author:SinghB KBK,
pubmed-author:AkimotoRR,
pubmed-author:SilvestriGG,
pubmed-author:KaneJ FJF,
pubmed-author:ParkB HBH,
pubmed-author:KamioKK,
pubmed-author:SawadaSS,
pubmed-author:OzawaKK,
pubmed-author:ChristiansenPP,
pubmed-author:PalSS,
pubmed-author:BaumannCC,
pubmed-author:NakagawaII,
pubmed-author:NguyenMM,
pubmed-author:DavidGG,
pubmed-author:RocheGG,
pubmed-author:KlinePP,
pubmed-author:ToriiHH,
pubmed-author:SilvaC LCL,
pubmed-author:BennettRR,
pubmed-author:TanejaSS,
pubmed-author:SakaguchiTT,
pubmed-author:RakJJ,
pubmed-author:WeiRR,
pubmed-author:DattaAA,
pubmed-author:LeeD MDM,
pubmed-author:YangRR,
pubmed-author:ChujoTT,
pubmed-author:MurataJJ,
pubmed-author:KurosawaMM,
pubmed-author:PaiK NKN,
pubmed-author:GonyJJ
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