Measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B0-->D(*+)D(*-).

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Dunwoodie,N I Geddes,D P Stoker,G Marchiori,M Mandelkern,G P Gopal,A N Yushkov,F Sandrelli,V Lillard,K Goetzen,G Schott,J Brose,C K Lae,M Bondioli,G Rong,S I Serednyakov,G W Morton,M Rotondo,R E Schmitz,J Dorfan,C A Heusch,R Kroeger,R N Cahn,H B Crawley,M A Winter,J L Harton,K T Flood,M Lo Vetere,A Samuel,D Judd,B Stugu,F Ferrarotto,V Lepeltier,M T Ronan,J Albert,D Del Re,H W Shorthouse,W S Lockman,T Glanzman,W N Cottingham,T Hadig,A M Boyarski,T B Moore,S Jayatilleke,R Stroili,S Willocq,M Morii,A Jawahery,S Yang,A Palano,R Contri,G De Nardo,F F Wilson,L Piemontese,M H Kelsey,M Milek,A V Telnov,G Calderini,G P Dubois-Felsmann,J C Chen,L Wilden,G Cavoto,A D Bukin,M D Sokoloff,N Danielson,D Dong,M Dickopp,M Chao,E I Rosenberg,S Christ,B Spaan,W Kozanecki,R Baldini-Ferroli,E Chen,S Ricciardi,H U Flaecher,V B Koptchev,H M Lacker,P Kyberd,D A Sanders,A J Lankford,N R Barlow,S Emery,N B Sinev,H Briand,M Pelizaeus,M Piccolo,N Chevalier,M Rama,G Tiozzo,G S Abrams,M H Schune,F Forti,J C Williams,S Prell,U Nauenberg,A Hauke,M A Mazur,S E Morgan,U Mallik,J G Smith,H Staengle,I Ofte,D Kirkby,G Blaylock,H Nicholson,G Piredda,E A Kravchenko,G Eigen,G D Lafferty,F Safai Tehrani,T Deppermann,G W London,M A Baak,R J Wilson,N D Qi,J Chauveau,A Romosan,H W Zhao,R Messner,R Godang,K Paick,M Pripstein,L Del Buono,H Schmuecker,J Beringer,P Taras,K R Schubert,D J Payne,C T Potter,S F Ganzhur,R Calabrese,E Gabathuler,W R Innes,F Salvatore,Y Groysman,C Hearty,M G Green,M Verderi,D Boutigny,T W Beck,J R Fry,G Grosdidier,A Lu,G Cibinetto,R De Sangro,W Bhimji,P J Oddone,J P Lees,M L Kocian,F Brochard,R Bartoldus,C E Marker,C Voci,M Andreotti,F Simonetto,F Bellini,P Rankin,H L Lynch,R Nogowski,P M Patel,V Eschenburg,S Luitz,R Barate,S J Gowdy,S Passaggio,G Finocchiaro,A B Breon,Q H Guo,J J Back,D Falciai,F Le Diberder,A Dorigo,E Charles,V N Ivanchenko,D B Macfarlane,L Tantot,G Wormser,G Vaitsas,C Gatto,M P Kelly,S Morganti,A Dvoretskii,A Calcaterra,A Buzzo,V Halyo,J P Coleman,S Bailey,T Colberg,W T Ford,A Lazzaro,W T Meyer,F Palombo,B Mayer,V E Blinov,M Benayoun,F Bucci,E Maly,T S Mattison,A M Eisner,I M Peruzzi,D E Wagoner,O Hamon,A W Borgland,S L Levy,T J Harrison,B Franek,V Miftakov,C Bozzi,G R Bonneaud,R W Kadel,P Strother,W C Van Hoek,N K Watson,M A Mazzoni,O L Buchmueller,M R Convery,M Posocco,J Roy,A M Lutz,F Ferroni,G Vasileiadis,D W G S Leith,C Hast,S Playfer,E Torrence,G Raven,N De Groot,P Sanders,J M Bauer,M S Gill,F Anulli,A T Watson,R Kofler,C Angelini,J A Kadyk ,P Kim,R.j Sloane ,R Müller-Pfefferkorn,B Brau,S Plaszczynski,M Steinke,J Olsen,S Xella ,G Wagner,E Olaiya ,H.a Tanaka ,В Б Голубев ,B A Schumm,J.h Weatherall ,C Campagnari,M R Monge,G J Grenier,J.f Kral ,P Wang,D N Brown,J Lämsä ,E Robutti,D Best,P F Harrison,A Farbin,V Re,O Long,W Walkowiak,A Soffer,S J Lee ,E Graugès-Pous ,J Allison,D M Wright,D Lange ,M Langer,J E Brau ,V Azzolini,D D Altenburg ,N Cavallo,S Mcmahon,L Gladney,S Rahatlou ,M E Levi,U Schwanke,D Mangeol ,J Richman ,E W Varnes,P Jackson ,J Cohen-Tanugi,D Kovalskyi,A Zghiche,P A Hart,A J Bevan,P Paolucci,A Forti ,L Lista,Ph Leruste ,P Robbe,J Cochran,N Neri,D R Muller,M Morandin,G P Taylor,H K Hadavand,C L Brown,S Menke,Yu I Skovpen,J Boyd ,V Sharma,M Macrı́ ,J Tinslay,M Margoni,F Pastore ,J Panetta,A K Mckemey,G Cowan,C P O’Grady,M Kay,L Zhang,T Latham ,C Jessop ,A Khan,T Brandt,W Verkerke,D Strom,F X Yumiceva,J R Gaillard,E Treadwell,J W Berryhill,P F Giraud ,N Berger,T Hryn’Ova,A V Gritsan,F Fabozzi,R Waldi,E Luppi,B Meadows ,R C Field,D Piccolo,C Sciacca,T Orimoto ,W.a Wenzel ,C Buchanan,D.p Coupal ,L Roos,D Bernard,V Brigljević ,D Dujmić ,V Shelkov ,S T’Jampens,P Elmer,C Lü ,G Hamel De Monchenault,J Stark,T R Mcmahon,S Chen,P Patterí ,T C Petersen,Y Jiang ,C K Mackay ,S Laplace,F Martínez-Vidal ,A J S Smith,D C Williams,M A Giorgi,J Zhang,J Button‐Shafer ,Abe K ,G Sciolla,M Purohit ,P David,U Langenegger,M Negrini,Ch Yèche ,L Cremaldi,M Pierini,P F Manfredi,P Dauncey ,J Nash ,S Tosi,A Sarti,V Lüth ,B Dahmes,C Voena,P.b Vidal ,T Çuhadar-Dönszelmann ,M John ,F Taylor,T Adye,A Pompili,P C Bloom ,J Walsh,Ch Thiebaux ,K Peters,M Zito,K E Ford ,Н Кузнецова ,A J Lyon,Ch De La Vaissière ,H Koch,J Reidy,T Barillari,J E Swain,A Rýd ,J.m Gaillard ,G Thérin

doi:10.1103/physrevlett.91.131801

Abstract

We present a measurement of time-dependent CP asymmetries and an updated determination of the CP-odd fraction in the decay B0-->D(*+)D(*-) using a data sample of 88x10(6)BB pairs collected by the BABAR detector at the PEP-II B Factory at SLAC. We determine the CP-odd fraction to be 0.063+/-0.055(stat)+/-0.009(syst). The time-dependent CP asymmetry parameters Im(lambda(+)) and /lambda(+)/ are determined to be 0.05+/-0.29(stat)+/-0.10(syst) and 0.75+/-0.19(stat)+/-0.02(syst), respectively. The standard model predicts these parameters to be -sin(2beta and 1, respectively, in the absence of penguin diagram contributions.

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