Amplitude analysis of B þ → J = ψφ C. Burr , Albert Bursche , Jean Buytaert , Sandro Cadeddu , Roberto Calabrese , Marta Calvi , Míriam Calvo Gómez , Pierluigi Campana , Daniel Hugo Campora Perez , Lorenzo Capriotti , Angelo Carbone , Giovanni Carboni , Roberta Cardinale , Alessandro Cardini , Paolo Carniti , K. Carvalho Akiba , G. Casse , Lorenzo Cassina , L. Castillo Garcia , Marco Cattaneo , Ch. Cauet , G Cavallero , Riccardo Cenci , Ph. Charpentier , Georgios Chatzikonstantinidis , Maximilien Chefdeville , Shenjian Chen , Veronika Chobanova , Marcin Jakub Chrzaszcz , Xavier Vidal , Gregory Max Ciezarek , Marco Clemencic , Joel Closier , Victor Coco , Julien Cogan , Eric Cogneras , Violetta Cogoni , Luminiţa Cojocariu , Gianmaria Collazuol , Paula Collins , Albert Comerma-Montells , Adam Cook , Samuel Coquereau , Gloria Corti , Marco Corvo , C. M. Costa Sobral , Benjamin Couturier , G. A. Cowan , Daniel C. Craik , A. C. Crocombe , Melissa Maria Cruz Torres , Samuel Cunliffe , Robert T. Currie , D. W. C. , Ambrósio , Jeremy Peter Dalseno , Adam Davis , O. De Aguiar Francisco , Kristof De Bruyn , Stefano de Capua , Michel De Cian , Jussara M. de Miranda , Leandro Vinhas de Paula , Marilisa De Serio , Patrizia de Simone , Daniel Decamp , Mirko Deckenhoff , Luigi Del Buono , Moritz Demmer , Denis Derkach , Olivier Deschamps , Francesco Dettori , B. Dey , Angelo Di Canto , H. G. Six Dijkstra , Francesca Dordei , Mirco Dorigo , A. Suárez , Anatoliy Dovbnya , Karlis Dreimanis , Laurent Dufour , Giulio Dujany , Kevin Dungs , Paolo Durante , R. Dzhelyadin , Agnieszka Dziurda , Alexey Dzyuba , Nicolas Déléage , Sajan Easo , Ulrik Egede , Victor Egorychev , Semen Eidelman , Sara Eisenhardt , Ulrich Eitschberger , Robert Jan Ekelhof , Lars Eklund , Ch. Elsasser , S. Ely , Sevda Esen , Hannah Mary Evans , Tecwyn Evans , Antonio Falabella , Naomi Farley , Stephen Farry , Robert Fay , Davide Fazzini , V. Fernandez Albor , F. Ferrari , Fernando Luiz Ferreira Rodrigues , Massimiliano Ferro-Luzzi , Sergey P. Filippov , R. A. Fini , Massimiliano Fiore , Massimiliano Fiorini , Miroslaw Firlej , Conor Fitzpatrick , Tomasz Fiutowski , Frederic Fleuret , Klaus Fohl , M. Fontana , Flavio Fontanelli , Christopher M. Frei , Emiliano Furfaro , C. Färber , A. Gallas Torreira , Domenico Galli , Stefano Gallorini , Silvia Gambetta , Miriam Gandelman , Paolo Gandini , Yan Gao , Julián García Pardiñas , Jordi Garra Tico , Ll. Garrido , Philip John Garsed , David Gascon , C. Gaspar , Laura Gavardi , Giulio Gazzoni , David Gerick , Evelina Mihova Gersabeck , Marco Gersabeck , Timothy Gershon , Ph. Ghez , Samuele Giani , Val Gibson , Olivier Göran Girard , L. E. Giubega , Konstantin Gizdov , V. V. Gligorov , Dmitry Golubkov , A. I. Golutvin , Alvaro Gomes , Igor V. Gorelov , Claudio Gotti , Marc Grabalosa Gándara , Ricardo Graciani Diaz , L. A. Granado Cardoso , Eugeni Grauges , Elena Graverini , Giacomo Graziani , Alexandru Grecu , P. Griffith , Lucia Grillo , Oliver Grünberg , Evgeny Gushchin , Yu. Guz , Thierry Gys , Carla Göbel , Thomas Hadavizadeh , Christos Hadjivasiliou , Guido Haefeli , Christophe Haen , Brian Hamilton , Xu Han , Neville Harnew , S. T. Harnew , Jenny Harrison , A. Heister , Karol Hennessy , Pierre Henrard , L Kelly Henry , J. A. Hernando Morata , Eric van Herwijnen , Adlène Hicheur , P. H. Hopchev , W. Hulsbergen , Thibaud Humair , Nazim Hussain , David Hutchcroft , Philip Ilten , R. Jacobsson , Anne Jäger , Joanna Jałocha , Eddy Jans , David Johnson , Christian Joram , Britta Jost , Nathan Jurik , S. S. Kandybei , Walaa Kanso , Matthias Karacson , Sarah Karodia , Matthieu Kecke , Ian Roger Kenyon , Matthew William Kenzie , Tjeerd Ketel , Egor Khairullin , Basem Khanji , Thomas Kirn , S. Klaver , Serhii Koliiev , M. Kolpin , I. Komarov , Patrick Koppenburg , Anastasiia Kozachuk , Mohamad Kozeiha , L. N. Kravchuk , Katharina Kreplin , Michal Kreps , Wojciech Krzemien , Wojciech Kucewicz , M. Kucharczyk , V. Kudryavtsev , A. K. Kuonen , Krzysztof Kurek , Tengiz Kvaratskheliya , George Lafferty , Gaia Lanfranchi , Ch. Langenbruch , A. K. Leflat , Jacques Lefrançois , R. L. R. Lefevre , Florian Lemaitre , E. Lemos Cid , Olivier Leroy , Tadeusz Lesiak , Blake Leverington , Y. Y. Li , Tatiana Likhomanenko , Francesca Lionetto , Bo-Wei Liu , J. H. Lopes , Donatella Lucchesi , Anna Lupato , Eleonora Luppi , Alberto Lusiani , Xuanqi Lyu , Frédéric Machefert , O. E. Maev , Sneha Malde , Andrey Malinin , Timofei Maltsev , Giulia Manca , G. Mancinelli , Jan Maratas , Piero Marino , Giuseppe Martellotti , M. Martin , Maurizio Martinelli , D. Martinez Santos , Fernando Martínez Vidal , D. Martins Tostes , Laure Marie Massacrier , André Massafferri , Abhijit Mathad , Clara Matteuzzi , Andrea Mauri , B. Maurin , Alexander Yurievich Mazurov , Andrea Merli , José M. Rodríguez , I. A. Monroy , Stéphane Monteil , A. Mordà , Sebastian Neubert , Nikolai Nikitin , Thomas Nikodem , Andrey Novoselov semanticscholar（2017）
摘要
R. Aaij et al. (LHCb Collaboration) (Received 25 June 2016; published 11 January 2017) The first full amplitude analysis of Bþ → J=ψφKþ with J=ψ → μþμ−, φ → KþK− decays is performed with a data sample of 3 fb−1 of pp collision data collected at ffiffi s p 1⁄4 7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into φKþ, and four J=ψφ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed Xð4140Þ state. The model includes significant contributions from a number of expected kaon excitations, including the first observation of the K ð1680Þþ → φKþ transition.
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