Direct CP violating asymmetry in B0-->K+pi- decays.
作者信息
Aubert B, Barate R, Boutigny D, Couderc F, Gaillard J-M, Hicheur A, Karyotakis Y, Lees J P, Tisserand V, Zghiche A, Palano A, Pompili A, Chen J C, Qi N D, Rong G, Wang P, Zhu Y S, Eigen G, Ofte I, Stugu B, Abrams G S, Borgland A W, Breon A B, Brown D N, Button-Shafer J, Cahn R N, Charles E, Day C T, Gill M S, Gritsan A V, Groysman Y, Jacobsen R G, Kadel R W, Kadyk J, Kerth L T, Kolomensky Yu G, Kukartsev G, Lynch G, Mir L M, Oddone P J, Orimoto T J, Pripstein M, Roe N A, Ronan M T, Shelkov V G, Wenzel W A, Barrett M, Ford K E, Harrison T J, Hart A J, Hawkes C M, Morgan S E, Watson A T, Fritsch M, Goetzen K, Held T, Koch H, Lewandowski B, Pelizaeus M, Steinke M, Boyd J T, Chevalier N, Cottingham W N, Kelly M P, Latham T E, Wilson F F, Cuhadar-Donszelmann T, Hearty C, Knecht N S, Mattison T S, McKenna J A, Thiessen D, Khan A, Kyberd P, Teodorescu L, Blinov A E, Blinov V E, Druzhinin V P, Golubev V B, Ivanchenko V N, Kravchenko E A, Onuchin A P, Serednyakov S I, Skovpen Yu I, Solodov E P, Yushkov A N, Best D, Bruinsma M, Chao M, Eschrich I, Kirkby D, Lankford A J, Mandelkern M, Mommsen R K, Roethel W, Stoker D P, Buchanan C, Hartfiel B L, Foulkes S D, Gary J W, Shen B C, Wang K, del Re D, Hadavand H K, Hill E J, MacFarlane D B, Paar H P, Rahatlou Sh, Sharma V, Berryhill J W, Campagnari C, Dahmes B, Long O, Lu A, Mazur M A, Richman J D, Verkerke W, Beck T W, Eisner A M, Heusch C A, Kroseberg J, Lockman W S, Nesom G, Schalk T, Schumm B A, Seiden A, Spradlin P, Williams D C, Wilson M G, Albert J, Chen E, Dubois-Felsmann G P, Dvoretskii A, Hitlin D G, Narsky I, Piatenko T, Porter F C, Ryd A, Samuel A, Yang S, Jayatilleke S, Mancinelli G, Meadows B T, Sokoloff M D, Abe T, Blanc F, Bloom P, Chen S, Ford W T, Nauenberg U, Olivas A, Rankin P, Smith J G, Zhang J, Zhang L, Chen A, Harton J L, Soffer A, Toki W H, Wilson R J, Zeng Q L, Altenburg D, Brandt T, Brose J, Dickopp M, Feltresi E, Hauke A, Lacker H M, Müller-Pfefferkorn R, Nogowski R, Otto S, Petzold A, Schubert J, Schubert K R, Schwierz R, Spaan B, Sundermann J E, Bernard D, Bonneaud G R, Brochard F, Grenier P, Schrenk S, Thiebaux Ch, Vasileiadis G, Verderi M, Bard D J, Clark P J, Lavin D, Muheim F, Playfer S, Xie Y, Andreotti M, Azzolini V, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Luppi E, Negrini M, Piemontese L, Sarti A, Treadwell E, Anulli F, Baldini-Ferroli R, Calcaterra A, de Sangro R, Finocchiaro G, Patteri P, Peruzzi I M, Piccolo M, Zallo A, Buzzo A, Capra R, Contri R, Crosetti G, Lo Vetere M, Macri M, Monge M R, Passaggio S, Patrignani C, Robutti E, Santroni A, Tosi S, Bailey S, Brandenburg G, Chaisanguanthum K S, Morii M, Won E, Dubitzky R S, Langenegger U, Bhimji W, Bowerman D A, Dauncey P D, Egede U, Gaillard J R, Morton G W, Nash J A, Nikolich M B, Taylor G P, Charles M J, Grenier G J, Mallik U, Cochran J, Crawley H B, Lamsa J, Meyer W T, Prell S, Rosenberg E I, Rubin A E, Yi J, Biasini M, Covarelli R, Pioppi M, Davier M, Giroux X, Grosdidier G, Höcker A, Laplace S, Le Diberder F, Lepeltier V, Lutz A M, Petersen T C, Plaszczynski S, Schune M H, Tantot L, Wormser G, Cheng C H, Lange D J, Simani M C, Wright D M, Bevan A J, Chavez C A, Coleman J P, Forster I J, Fry J R, Gabathuler E, Gamet R, Hutchcroft D E, Parry R J, Payne D J, Sloane R J, Touramanis C, Back J J, Cormack C M, Harrison P F, Di Lodovico F, Mohanty G B, Brown C L, Cowan G, Flack R L, Flaecher H U, Green M G, Jackson P S, McMahon T R, Ricciardi S, Salvatore F, Winter M A, Brown D, Davis C L, Allison J, Barlow N R, Barlow R J, Hart P A, Hodgkinson M C, Lafferty G D, Lyon A J, Williams J C, Farbin A, Hulsbergen W D, Jawahery A, Kovalskyi D, Lae C K, Lillard V, Roberts D A, Blaylock G, Dallapiccola C, Flood K T, Hertzbach S S, Kofler R, Koptchev V B, Moore T B, Saremi S, Staengle H, Willocq S, Cowan R, Sciolla G, Sekula S J, Taylor F, Yamamoto R K, Mangeol D J J, Patel P M, Robertson S H, Lazzaro A, Lombardo V, Palombo F, Bauer J M, Cremaldi L, Eschenburg V, Godang R, Kroeger R, Reidy J, Sanders D A, Summers D J, Zhao H W, Brunet S, Côté D, Taras P, Nicholson H, Cavallo N, Fabozzi F, Gatto C, Lista L, Monorchio D, Paolucci P, Piccolo D, Sciacca C, Baak M, Bulten H, Raven G, Snoek H L, Wilden L, Jessop C P, Losecco J M, Allmendinger T, Gan K K, Honscheid K, Hufnagel D, Kagan H, Kass R, Pulliam T, Rahimi A M, Ter-Antonyan R, Wong Q K, Brau J, Frey R, Igonkina O, Potter C T, Sinev N B, Strom D, Torrence E, Colecchia F, Dorigo A, Galeazzi F, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Tiozzo G, Voci C, Benayoun M, Briand H, Chauveau J, David P, de la Vaissière Ch, Del Buono L, Hamon O, John M J J, Leruste Ph, Malcles J, Ocariz J, Pivk M, Roos L, T'Jampens S, Therin G, Manfredi P F, Re V, Behera P K, Gladney L, Guo Q H, Panetta J, Angelini C, Batignani G, Bettarini S, Bondioli M, Bucci F, Calderini G, Carpinelli M, Forti F, Giorgi M A, Lusiani A, Marchiori G, Martinez-Vidal F, Morganti M, Neri N, Paoloni E, Rama M, Rizzo G, Sandrelli F, Walsh J, Haire M, Judd D, Paick K, Wagoner D E, Danielson N, Elmer P, Lau Y P, Lu C, Miftakov V, Olsen J, Smith A J S, Telnov A V, Bellini F, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Li Gioi L, Mazzoni M A, Morganti S, Pierini M, Piredda G, Safai Tehrani F, Voena C, Christ S, Wagner G, Waldi R, Adye T, De Groot N, Franek B, Geddes N I, Gopal G P, Olaiya E O, Aleksan R, Emery S, Gaidot A, Ganzhur S F, Giraud P-F, Hamel de Monchenault G, Kozanecki W, Legendre M, London G W, Mayer B, Schott G, Vasseur G, Yèche Ch, Zito M, Purohit M V, Weidemann A W, Wilson J R, Yumiceva F X, Aston D, Bartoldus R, Berger N, Boyarski A M, Buchmueller O L, Claus R, Convery M R, Cristinziani M, De Nardo G, Dong D, Dorfan J, Dujmic D, Dunwoodie W, Elsen E E, Fan S, Field R C, Glanzman T, Gowdy S J, Hadig T, Halyo V, Hast C, Hryn'ova T, Innes W R, Kelsey M H, Kim P, Kocian M L, Leith D W G S, Libby J, Luitz S, Luth V, Lynch H L, Marsiske H, Messner R, Muller D R, O'Grady C P, Ozcan V E, Perazzo A, Perl M, Petrak S, Ratcliff B N, Roodman A, Salnikov A A, Schindler R H, Schwiening J, Simi G, Snyder A, Soha A, Stelzer J, Su D, Sullivan M K, Va'vra J, Wagner S R, Weaver M, Weinstein A J R, Wisniewski W J, Wittgen M, Wright D H, Yarritu A K, Young C C, Burchat P R, Edwards A J, Meyer T I, Petersen B A, Roat C, Ahmed S, Alam M S, Ernst J A, Saeed M A, Saleem M, Wappler F R, Bugg W, Krishnamurthy M, Spanier S M, Eckmann R, Kim H, Ritchie J L, Satpathy A, Schwitters R F, Izen J M, Kitayama I, Lou X C, Ye S, Bianchi F, Bona M, Gallo F, Gamba D, Bosisio L, Cartaro C, Cossutti F, Della Ricca G, Dittongo S, Grancagnolo S, Lanceri L, Poropat P, Vitale L, Vuagnin G, Panvini R S, Banerjee Sw, Brown C M, Fortin D, Jackson P D, Kowalewski R, Roney J M, Sobie R J, Band H R, Cheng B, Dasu S, Datta M, Eichenbaum A M, Graham M, Hollar J J, Johnson J R, Kutter P E, Li H, Liu R, Mihalyi A, Mohapatra A K, Pan Y, Prepost R, Tan P, von Wimmersperg-Toeller J H, Wu J, Wu S L, Yu Z, Greene M G, Neal H
机构信息
Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France.
出版信息
Phys Rev Lett. 2004 Sep 24;93(13):131801. doi: 10.1103/PhysRevLett.93.131801. Epub 2004 Sep 20.
We present a measurement of the direct CP violating asymmetry in the decay B0-->K+pi(-) using a data sample of 227x10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We observe a total signal yield of nK-(pi(+))+nK+(pi(-))=1606+/-51 decays and measure the asymmetry (nK-(pi(+))-nK+(pi(-)))/(nK-(pi(+))+nK+(pi(-)))=-0.133+/-0.030(stat)+/-0.009(syst). The probability of observing such an asymmetry in the absence of direct CP violation is 1.3x10(-5), corresponding to 4.2 standard deviations.
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