Published June 27, 2014
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Observation of a peaking structure in the J/ψφ mass spectrum from B^± → J/ψφK^± decays
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Abstract
A peaking structure in the J/ψ ϕ mass spectrum near threshold is observed in B^± → J/ψ ϕ K^± decays, produced in pp collisions at √s =7 TeV collected with the CMS detector at the LHC. The data sample, selected on the basis of the dimuon decay mode of the J/ψ, corresponds to an integrated luminosity of 5.2 fb^(−1). Fitting the structure to an S -wave relativistic Breit–Wigner lineshape above a three-body phase-space nonresonant component gives a signal statistical significance exceeding five standard deviations. The fitted mass and width values are m = 4148.0±2.4(stat.)±6.3(syst.)MeV and Γ = 28_(−11)^(+15)(stat.)±19(syst.)MeV, respectively. Evidence for an additional peaking structure at higher J/ψ ϕ mass is also reported.
Additional Information
© 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/). Funded by SCOAP3. Received 26 September 2013. Received in revised form 11 April 2014. Accepted 7 May 2014. Available online 22 May 2014. Editor: M. Doser. We congratulate our colleagues in the CERN accelerator depart-ments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS in-stitutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A.P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research, India; the Compagnia di San Paolo (Torino); the HOMING PLUS programme of Foundation For Polish Science, cofinanced by EU, Regional Development Fund; and the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF.Attached Files
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Additional details
- Eprint ID
- 48767
- Resolver ID
- CaltechAUTHORS:20140821-091946316
- SCOAP3
- BMWF and FWF (Austria)
- FNRS and FWO (Belgium)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
- Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)
- Ministry of Education and Science (Bulgaria)
- CERN
- Chinese Academy of Sciences
- MoST and NSFC (China)
- COLCIENCIAS (Colombia)
- Ministry of Science, Education and Sports (Croatia)
- Academy of Finland
- Research Promotion Foundation (Cyprus)
- Ministry of Education and Research (Estonia)
- SF0690030s09
- European Regional Development Fund, Estonia
- Ministry of Education and Culture (Finland)
- Helsinki Institute of Physics
- CEA and CNRS/IN2P3 (France)
- Bundesministerium für Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)
- General Secretariat for Research and Technology (GSRT)
- OTKA and NKTH (Hungary)
- DAE and DST (India)
- Institute for Studies in Theoretical Physics and Mathematics (Iran)
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare (INFN)
- NRF and WCU (Korea)
- Lithuanian Academy of Sciences
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINESTAV)
- Consejo Nacional de Ciencia y Tecnología (CONACYT)
- SEP and UASLP-FAI (Mexico)
- Ministry of Business, Innovation and Employment (New Zealand)
- Atomic Energy Commission (Pakistan)
- MSHE and NSC (Poland)
- Fundação para a Ciência e a Tecnologia (FCT)
- JINR (Dubna)
- MON
- RosAtom
- RAS and RFBR (Russia)
- Ministry of Education, Science and Technological Development (Serbia)
- SEIDI and CPAN (Spain)
- Swiss Funding Agencies
- National Science Council (Taipei)
- ThEPCenter
- IPST, STAR, and NSTDA (Thailand)
- TUBITAK and TAEK (Turkey)
- National Academy of Sciences (Ukraine)
- Science and Technology Facilities Council (STFC)
- Department of Energy (DOE)
- NSF
- Marie Curie Fellowship
- Leventis Foundation
- Alfred P. Sloan Foundation
- Alexander von Humboldt Foundation
- Belgian Federal Science Policy Office (BELSPO)
- Fonds pour la Formation à la Recherche dans l'índustrie et dans l'Ágriculture (FRIA-Belgium)
- Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
- Ministry of Education Youth and Sports (MEYS) of Czech Republic
- Council of Science and Industrial Research (India)
- Compagnia di San Paolo (Torino)
- HOMING PLUS programme of Foundation for Polish Science
- European Union Regional Development Fund
- Thalis and Aristeia programmes cofinanced by EU-ESF
- Greek National Strategic Reference Framework (NSRF)
- European Research Council (ERC)
- EPLANET
- Created
-
2014-08-21Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- CMS@Caltech