Observation of the baryonic B decay (B)over-bar(0) -> Lambda(+)(c)(Lambda)over-barK(-)

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doi:10.1103/PhysRevD.84.071102

We report the observation of the baryonic B decay (B) over bar (0) -> Lambda(+)(c)Lambda K(-) with a significance larger than 7 standard deviations based on 471 x 10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II storage ring at SLAC. We measure the branching fraction for the decay (B) over bar (0) -> Lambda(+)(c)Lambda K(-) to be (3.8 +/- 0.8(stat) +/- 0.2(sys) +/- 1.0(Lambda c)(+)) x 10(-5). The uncertainties are statistical, systematic, and due to the uncertainty in the Lambda(+)(c) branching fraction. We find that the Lambda(+)(c)K(-) invariant-mass distribution shows an enhancement above 3.5 GeV/c(2).

Titolo:	Observation of the baryonic B decay (B)over-bar(0) -> Lambda(+)(c)(Lambda)over-barK(-)
Autori:	Lees JP Poireau V Tisserand V Tico JG Grauges E Martinelli M Milanes DA Palano A Pappagallo M Eigen G Stugu B Sun L Brown DN Kerth LT Kolomensky YG Lynch G Koch H Schroeder T Asgeirsson DJ Hearty C Mattison TS McKenna JA Khan A Blinov VE Buzykaev AR Druzhinin VP Golubev VB Kravchenko EA Onuchin AP Serednyakov SI Skovpen YI Solodov EP Todyshev KY Yushkov AN Bondioli M Kirkby D Lankford AJ Mandelkern M Stoker DP Atmacan H Gary JW Liu F Long O Vitug GM Campagnari C Hong TM Kovalskyi D Richman JD West CA Eisner AM Kroseberg J Lockman WS Martinez AJ Schalk T Schumm BA Seiden A Cheng CH Doll DA Echenard B Flood KT Hitlin DG Ongmongkolkul P Porter FC Rakitin AY Andreassen R Dubrovin MS Huard Z Meadows BT Sokoloff MD Bloom PC Ford WT Gaz A Nagel M Nauenberg U Smith JG Wagner SR Ayad R Toki WH Spaan B Kobel MJ Schubert KR Schwierz R Bernard D Verderi M Clark PJ Playfer S Bettoni D Bozzi C Calabrese R Cibinetto G Fioravanti E Garzia I Luppi E Munerato M Negrini M Piemontese L Baldini Ferroli R Calcaterra A de Sangro R Finocchiaro G Nicolaci M Patteri P Peruzzi IM Piccolo M Rama M Zallo A Contri R Guido E Lo Vetere M Monge MR Passaggio S Patrignani C Robutti E Bhuyan B Prasad V Lee CL Morii M Edwards AJ Adametz A Marks J Uwer U Bernlochner FU Ebert M Lacker HM Lueck T Dauncey PD Tibbetts M Behera PK Mallik U Chen C Cochran J Meyer WT Prell S Rosenberg EI Rubin AE Gritsan AV Guo ZJ Arnaud N Davier M Grosdidier G Le Diberder F Lutz AM Malaescu B Roudeau P Schune MH Stocchi A Wormser G Lange DJ Wright DM Bingham I Chavez CA Coleman JP Fry JR Gabathuler E Hutchcroft DE Payne DJ Touramanis C Bevan AJ Di Lodovico F Sacco R Sigamani M Cowan G Paramesvaran S Brown DN Davis CL Denig AG Fritsch M Gradl W Hafner A Prencipe E Alwyn KE Bailey D Barlow RJ Jackson G Lafferty GD Cenci R Hamilton B Jawahery A Roberts DA Simi G Dallapiccola C Cowan R Dujmic D Sciolla G Lindemann D Patel PM Robertson SH Schram M Biassoni P Lazzaro A Lombardo V Neri N Palombo F Stracka S Cremaldi L Godang R Kroeger R Sonnek P Summers DJ Nguyen X Taras P De Nardo G Monorchio D Onorato G Sciacca C Raven G Snoek HL Jessop CP Knoepfel KJ LoSecco JM Wang WF Honscheid K Kass R Brau J Frey R Sinev NB Strom D Torrence E Feltresi E Gagliardi N Margoni M Morandin M Posocco M Rotondo M Simonetto F Stroili R Ben Haim E Bomben M Bonneaud GR Briand H Calderini G Chauveau J Hamon O Leruste P Marchiori G Ocariz J Sitt S Biasini M Manoni E Pacetti S Rossi A Angelini C Batignani G Bettarini S Carpinelli M Casarosa G Cervelli A Forti F Giorgi MA LUSIANI, Alberto Oberhof B Paoloni E Perez A Rizzo G Walsh JJ Pegna DL Lu C Olsen J Smith AJS Telnov AV Anulli F Cavoto G Faccini R Ferrarotto F Ferroni F Gaspero M Gioi LL Mazzoni MA Piredda G Bunger C Grunberg O Hartmann T Leddig T Schroder H Waldi R Adye T Olaiya EO Wilson FF Emery S de Monchenault GH Vasseur G Yeche C Aston D Bard DJ Bartoldus R Cartaro C Convery MR Dorfan J Dubois Felsmann GP Dunwoodie W Field RC Sevilla MF Fulsom BG Gabareen AM Graham MT Grenier P Hast C Innes WR Kelsey MH Kim H Kim P Kocian ML Leith DWGS Lewis P Li S Lindquist B Luitz S Luth V Lynch HL MacFarlane DB Muller DR Neal H Nelson S Ofte I Perl M Pulliam T Ratcliff BN Roodman A Salnikov AA Santoro V Schindler RH Snyder A Su D Sullivan MK Va'vra J Wagner AP Weaver M Wisniewski WJ Wittgen M Wright DH Wulsin HW Yarritu AK Young CC Ziegler V Park W Purohit MV White RM Wilson JR Randle Conde A Sekula SJ Bellis M Benitez JF Burchat PR Miyashita TS Alam MS Ernst JA Gorodeisky R Guttman N Peimer DR Soffer A Lund P Spanier SM Eckmann R Ritchie JL Ruland AM Schilling CJ Schwitters RF Wray BC Izen JM Lou XC Bianchi F Gamba D Lanceri L Vitale L Martinez Vidal F Oyanguren A Ahmed H Albert J Banerjee S Choi HHF King GJ Kowalewski R Lewczuk MJ Lindsay C Nugent IM Roney JM Sobie RJ Gershon TJ Harrison PF Latham TE Puccio EMT Band HR Dasu S Pan Y Prepost R Vuosalo CO Wu SL mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2011
Rivista:	PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevD.84.071102
Handle:	http://hdl.handle.net/11384/4532
Appare nelle tipologie:	1.1 Articolo in rivista

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