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Boettcher A. Bondar N. Bondar S. Borghi M. Borisyak M. Borsato F. Bossu M. Boubdir T. J. V. Bowcock C. Bozzi S. Braun M. Brodski J. Brodzicka A. Brossa Gonzalo D. Brundu E. Buchanan A. Buonaura C. Burr A. Bursche J. Buytaert W. Byczynski S. Cadeddu H. Cai R. Calabrese R. Calladine M. Calvi M. Calvo Gomez A. Camboni P. Campana D. H. Campora Perez L. Capriotti A. Carbone G. Carboni R. Cardinale A. Cardini P. Carniti L. Carson K. Carvalho Akiba G. Casse L. Cassina M. Cattaneo G. Cavallero R. Cenci D. Chamont M. G. Chapman M. Charles Ph. Charpentier G. Chatzikonstantinidis M. Chefdeville V. Chekalina C. Chen S. Chen S.-G. Chitic V. Chobanova M. Chrzaszcz A. Chubykin P. Ciambrone X. Cid Vidal G. Ciezarek P. E. L. Clarke M. Clemencic H. V. Cliff J. Closier V. Coco J. A. B. Coelho J. Cogan E. Cogneras L. Cojocariu P. Collins T. Colombo A. Comerma-Montells A. Contu G. Coombs S. Coquereau G. Corti M. Corvo C. M. Costa Sobral B. Couturier G. A. Cowan D. C. Craik A. Crocombe M. Cruz Torres R. Currie C. D’Ambrosio F. Da Cunha Marinho C. L. Da Silva E. Dall’Occo J. Dalseno A. Danilina A. Davis O. De Aguiar Francisco K. De Bruyn S. De Capua M. De Cian J. M. De Miranda L. De Paula M. De Serio P. De Simone C. T. Dean D. Decamp L. Del Buono B. Delaney H.-P. Dembinski M. Demmer A. Dendek D. Derkach O. Deschamps F. Desse F. Dettori B. Dey A. Di Canto P. Di Nezza S. Didenko H. Dijkstra F. Dordei M. Dorigo A. Dosil Suárez L. Douglas A. Dovbnya K. Dreimanis L. Dufour G. Dujany P. Durante J. M. Durham D. Dutta R. Dzhelyadin M. Dziewiecki A. Dziurda A. Dzyuba S. Easo U. Egede V. Egorychev S. Eidelman S. Eisenhardt U. Eitschberger R. Ekelhof L. Eklund S. Ely A. Ene S. Escher S. Esen T. Evans A. Falabella N. Farley S. Farry D. Fazzini L. Federici P. Fernandez Declara A. Fernandez Prieto F. Ferrari L. Ferreira Lopes F. Ferreira Rodrigues M. Ferro-Luzzi S. Filippov R. A. Fini M. Fiorini M. Firlej C. Fitzpatrick T. Fiutowski F. Fleuret M. Fontana F. Fontanelli R. Forty V. Franco Lima M. 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Loi I. Longstaff J. H. Lopes G. H. Lovell D. Lucchesi M. Lucio Martinez A. Lupato E. Luppi O. Lupton A. Lusiani X. Lyu F. Machefert F. Maciuc V. Macko P. Mackowiak S. Maddrell-Mander O. Maev K. Maguire D. Maisuzenko M. W. Majewski S. Malde B. Malecki A. Malinin T. Maltsev G. Manca G. Mancinelli D. Marangotto J. Maratas J. F. Marchand U. Marconi C. Marin Benito M. Marinangeli P. Marino J. Marks P. J. Marshall G. Martellotti M. Martin M. Martinelli D. Martinez Santos F. Martinez Vidal A. Massafferri M. Materok R. Matev A. Mathad Z. Mathe C. Matteuzzi A. Mauri E. Maurice B. Maurin A. Mazurov M. McCann A. McNab R. McNulty J. V. Mead B. Meadows C. Meaux F. Meier N. Meinert D. Melnychuk M. Merk A. Merli E. Michielin D. A. Milanes E. Millard M.-N. Minard L. Minzoni D. S. Mitzel A. Mogini J. Molina Rodriguez T. Mombächer I. A. Monroy S. Monteil M. Morandin G. Morello M. J. Morello O. Morgunova J. Moron A. B. Morris R. Mountain F. Muheim M. Mulder C. H. Murphy D. Murray A. Mödden D. Müller J. Müller K. Müller V. Müller P. Naik T. Nakada R. Nandakumar A. Nandi T. Nanut I. Nasteva M. Needham N. Neri S. Neubert N. Neufeld M. Neuner T. D. Nguyen C. Nguyen-Mau S. Nieswand R. Niet N. Nikitin A. Nogay N. S. Nolte D. P. O’Hanlon A. Oblakowska-Mucha V. Obraztsov S. Ogilvy R. Oldeman C. J. G. Onderwater A. Ossowska J. M. Otalora Goicochea P. Owen A. Oyanguren P. R. Pais T. Pajero A. Palano M. Palutan G. Panshin A. Papanestis M. Pappagallo L. L. Pappalardo W. Parker C. Parkes G. Passaleva A. Pastore M. Patel C. Patrignani A. Pearce A. Pellegrino G. Penso M. Pepe Altarelli S. Perazzini D. Pereima P. Perret L. Pescatore K. Petridis A. Petrolini A. Petrov S. Petrucci M. Petruzzo B. Pietrzyk G. Pietrzyk M. Pikies M. Pili D. Pinci J. Pinzino F. Pisani A. Piucci V. Placinta S. Playfer J. Plews M. Plo Casasus F. Polci M. Poli Lener A. Poluektov N. Polukhina I. Polyakov E. Polycarpo G. J. Pomery S. Ponce A. Popov D. Popov S. Poslavskii C. Potterat E. Price J. Prisciandaro C. Prouve V. Pugatch A. Puig Navarro H. Pullen G. Punzi W. Qian J. Qin R. Quagliani B. Quintana B. Rachwal J. H. Rademacker M. Rama M. Ramos Pernas M. S. Rangel F. Ratnikov G. Raven M. Ravonel Salzgeber M. Reboud F. Redi S. Reichert A. C. dos Reis F. Reiss C. Remon Alepuz Z. Ren V. Renaudin S. Ricciardi S. Richards K. Rinnert P. Robbe A. Robert A. B. Rodrigues E. Rodrigues J. A. Rodriguez Lopez M. Roehrken A. Rogozhnikov S. Roiser A. Rollings V. Romanovskiy A. Romero Vidal M. Rotondo M. S. Rudolph T. Ruf J. Ruiz Vidal J. J. Saborido Silva N. Sagidova B. Saitta V. Salustino Guimaraes C. Sanchez Gras C. Sanchez Mayordomo B. Sanmartin Sedes R. Santacesaria C. Santamarina Rios M. Santimaria E. Santovetti G. Sarpis A. Sarti C. Satriano A. Satta M. Saur D. Savrina S. Schael M. Schellenberg M. Schiller H. Schindler M. Schmelling T. Schmelzer B. Schmidt O. Schneider A. Schopper H. F. Schreiner M. Schubiger M. H. Schune R. Schwemmer B. Sciascia A. Sciubba A. Semennikov E. S. Sepulveda A. Sergi N. Serra J. 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作者机构：Nikhef National Institute for Subatomic Physics Amsterdam Netherlands Instituto Galego de Física de Altas Enerxías (IGFAE) Universidade de Santiago de Compostela Santiago de Compostela Spain H.H. Wills Physics Laboratory University of Bristol Bristol United Kingdom University of Michigan Ann Arbor Michigan USA (associated with Syracuse University Syracuse New York USA) Clermont Université Université Blaise Pascal CNRS/IN2P3 LPC Clermont-Ferrand France University of Cincinnati Cincinnati Ohio USA INFN Laboratori Nazionali di Frascati Frascati Italy Fakultät Physik Technische Universität Dortmund Dortmund Germany European Organization for Nuclear Research (CERN) Geneva Switzerland School of Physics and Astronomy University of Glasgow Glasgow United Kingdom ICCUB Universitat de Barcelona Barcelona Spain Petersburg Nuclear Physics Institute (PNPI) Gatchina Russia Imperial College London London United Kingdom Universidade Federal do Rio de Janeiro (UFRJ) Rio de Janeiro Brazil INFN Sezione di Padova Padova Italy LAL Univ. Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France Center for High Energy Physics Tsinghua University Beijing China INFN Sezione di Firenze Firenze Italy Institute of Physics Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland INFN Sezione di Ferrara Ferrara Italy University of Maryland College Park Maryland USA School of Physics and Astronomy University of Manchester Manchester United Kingdom Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany Aix Marseille Univ CNRS/IN2P3 CPPM Marseille France Institute for High Energy Physics (IHEP) Protvino Russia Syracuse University Syracuse New York USA Yandex School of Data Analysis Moscow Russia Physik-Institut Universität Zürich Zürich Switzerland INFN Sezione di Cagliari Monserrato Italy Department of Physics University of Warwick Coventry United Kingdom National Center for Nuclear Research (NCBJ) Warsaw Poland INFN Sezione di Pisa Pisa Italy Centro Brasileiro de Pesquisas Físicas (CBPF) Rio de Janeiro Brazil University of Chinese Academy of Sciences Beijing China (associated with Center for High Energy Physics Tsinghua University Beijing China) INFN Sezione di Milano-Bicocca Milano Italy Institute of Theoretical and Experimental Physics (ITEP) Moscow Russia LPNHE Sorbonne Université Paris Diderot Sorbonne Paris Cité CNRS/IN2P3 Paris France I. Physikalisches Institut RWTH Aachen University Aachen Germany Institute of Nuclear Physics Moscow State University (SINP MSU) Moscow Russia INFN Sezione di Bologna Bologna Italy Cavendish Laboratory University of Cambridge Cambridge United Kingdom Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences Kraków Poland University of Birmingham Birmingham United Kingdom Department of Physics University of Oxford Oxford United Kingdom INFN Sezione di Roma La Sapienza Roma Italy Massachusetts Institute of Technology Cambridge Massachusetts USA Budker Institute of Nuclear Physics (SB RAS) Novosibirsk Russia Oliver Lodge Laboratory University of Liverpool Liverpool United Kingdom School of Physics and Technology Wuhan University Wuhan China (associated with Center for High Energy Physics Tsinghua University Beijing China) INFN Sezione di Roma Tor Vergata Roma Italy INFN Sezione di Genova Genova Italy School of Physics and Astronomy University of Edinburgh Edinburgh United Kingdom Univ. Grenoble Alpes Univ. Savoie Mont Blanc CNRS IN2P3-LAPP Annecy France Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest-Magurele Romania Los Alamos National Laboratory (LANL) Los Alamos New Mexico USA (associated with Syracuse University Syracuse New York USA) INFN Sezione di Bari Bari Italy Max-Planck-Institut für Kernphysik (MPIK) Heidelberg Germany AGH - University of Science and Technology Faculty of Physics and Applied Computer Science Kraków Poland Institute of Particle Physics Central China Normal University Wuhan Hubei China (associated with Center for High Energy Physics Tsinghua University Beijing China) NSC Kharkiv Institute of Physics and Technology (NSC KIPT) Kharkiv Ukraine STFC Rutherford Appleton Laboratory Didcot United Kingdom Institute for Nuclear Research of the Russian Academy of Sciences (INR RAS) Moscow Russia INFN Sezione di Milano Milano Italy Instituto de Fisica Corpuscular Centro Mixto Universidad de Valencia - CSIC Valencia Spain (associated with ICCUB Universitat de Barcelona Barcelona Spain) Institut für Physik Universität Rostock Rostock Germany (associated with Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany) Nikhef National Institute for Subatomic Physics and VU University Amsterdam Amsterdam Netherlands Institute for Nuclear Research of the National Academy of Sciences (KINR) Kyiv Ukraine School of Physics University College Dublin Dublin Ireland Departamento de Fisica Universidad Nacional de Colombia Bogota Colombia (associated with LPNHE Sorbonne Université Paris Diderot Sorbonne Paris Cité CNRS/IN2P3 Paris France) Van Swinderen Institute University of Groningen Groningen Netherlands (associated with Nikhef National Institute for Subatomic Physics Amsterdam Netherlands)
出 版 物：《Physical Review Letters》 (物理评论快报)
年 卷 期：2018年第121卷第16期
页 面：162002-162002页
核心收录：
学科分类：07[理学] 0702[理学-物理学]
基 金：, (1681016, 1796908, ST/J004332/1, ST/K003410/1, ST/L003163/1, ST/N000242/1, ST/N000250/1, ST/N000447/1, ST/N000455/1, ST/N000463/1) EPLANET Herchel Smith Fund Key Research Program of Frontier Sciences of CAS MinES OCEVU XuntaGal Yandex LLC National Science Foundation, NSF Alexander von Humboldt-Stiftung Laboratory Directed Research and Development, LDRD Los Alamos National Laboratory, LANL H2020 Marie Skłodowska-Curie Actions, MSCA CERN Science and Technology Facilities Council, STFC, (GRIDPP, LHCb, LHCb Upgrades, ST/N000234/1) Science and Technology Facilities Council, STFC Leverhulme Trust Royal Society English-Speaking Union, ESU European Research Council, ERC Deutsche Forschungsgemeinschaft, DFG Agence Nationale de la Recherche, ANR Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (166208) Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF National Natural Science Foundation of China, NSFC Russian Foundation for Basic Research, РФФИ Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES Bundesministerium für Bildung und Forschung, BMBF Chinese Academy of Sciences, CAS Nederlandse Organisatie voor Wetenschappelijk Onderzoek, NWO Generalitat Valenciana, GVA Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq Instituto Nazionale di Fisica Nucleare, INFN Narodowe Centrum Nauki, NCN Ministerstwo Nauki i Szkolnictwa Wyższego, MNiSW Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ Ministry of Science and Technology, Taiwan, MOST National Academy of Sciences of Ukraine, NASU Centre National de la Recherche Scientifique, CNRS Financiadora de Estudos e Projetos, FINEP Russian Science Foundation, RSF Région Auvergne-Rhône-Alpes Recruitment Program of Global Experts Institut National de Physique Nucléaire et de Physique des Particules, IN2P3 Federal Agency for Scientific Organizations Sociedad Española de Reumatología, SER
主 题：Charmed baryons
摘 要：The doubly charmed baryon decay Ξcc++→Ξc+π+ is observed for the first time, with a statistical significance of 5.9σ, confirming a recent observation of the baryon in the Λc+K−π+π+ final state. The data sample used corresponds to an integrated luminosity of 1.7 fb−1, collected by the LHCb experiment in pp collisions at a center-of-mass energy of 13 TeV. The Ξcc++ mass is measured to be 3620.6±1.5(stat)±0.4(syst)±0.3(Ξc+) MeV/c2 and is consistent with the previous result. The ratio of branching fractions between the decay modes is measured to be [B(Ξcc++→Ξc+π+)×B(Ξc+→pK−π+)]/[B(Ξcc++→Λc+K−π+π+)×B(Λc+→pK−π+)]=0.035±0.009(stat)±0.003(syst).
