Angular analysis of the decay B+ →k+μ+μ- in proton-proton collisions at s =8 TeV

CMS Collaboration

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The angular distribution of the flavor-changing neutral current decay B+→K+μ+μ- is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5 fb-1. The forward-backward asymmetry AFB of the dimuon system and the contribution FH from the pseudoscalar, scalar, and tensor amplitudes to the decay width are measured as a function of the dimuon mass squared. The measurements are consistent with the standard model expectations.

Original languageEnglish
Article number112011
JournalPhysical Review D
Volume98
Issue number11
DOIs
Publication statusPublished - 2018 Dec 1

Bibliographical note

Funding Information:
The angular distribution of the flavor-changing neutral current decay B + → K + μ + μ - is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5     fb - 1 . The forward-backward asymmetry A FB of the dimuon system and the contribution F H from the pseudoscalar, scalar, and tensor amplitudes to the decay width are measured as a function of the dimuon mass squared. The measurements are consistent with the standard model expectations. Bundesministerium für Wissenschaft, Forschung und Wirtschaft 10.13039/501100003413 Austrian Science Fund 10.13039/501100002428 Fonds De La Recherche Scientifique - FNRS 10.13039/501100002661 Fonds Wetenschappelijk Onderzoek 10.13039/501100003130 30820817 Conselho Nacional de Desenvolvimento Científico e Tecnológico 10.13039/501100003593 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 10.13039/501100002322 Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro 10.13039/501100004586 Fundação de Amparo à Pesquisa do Estado de São Paulo 10.13039/501100001807 Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul 10.13039/501100004263 Ministry of Education and Science 10.13039/501100005992 CERN [Conseil Européen pour la Recherche Nucléaire] Chinese Academy of Sciences 10.13039/501100002367 Ministry of Science and Technology of the People’s Republic of China 10.13039/501100002855 National Natural Science Foundation of China 10.13039/501100001809 Departamento Administrativo de Ciencia, Tecnología e Innovación 10.13039/100007637 Ministarstvo Znanosti, Obrazovanja i Sporta 10.13039/501100006588 CSF Research Promotion Foundation 10.13039/501100001810 Secretaría de Educación Superior, Ciencia, Tecnología e Innovación 10.13039/501100004299 MoER H2020 European Research Council 10.13039/100010663 IUT European Regional Development Fund 10.13039/501100008530 Academy of Finland 10.13039/501100002341 Finnish Ministry of Education and Culture (MEC), (Finland) HIP Commissariat à l’Énergie Atomique et aux Énergies Alternatives 10.13039/501100006489 Centre National de la Recherche Scientifique 10.13039/501100004794 Bundesministerium für Bildung und Forschung 10.13039/501100002347 Deutsche Forschungsgemeinschaft 10.13039/501100001659 Helmholtz-Gemeinschaft 10.13039/501100001656 General Secretariat for Research and Technology 10.13039/501100003448 NKFIA 123842 123959 124845 124850 125105 Department of Atomic Energy, Government of India 10.13039/501100001502 Department of Science and Technology, Ministry of Science and Technology 10.13039/501100001409 Institute for Research in Fundamental Sciences 10.13039/501100006115 Science Foundation Ireland 10.13039/501100001602 Instituto Nazionale di Fisica Nucleare 10.13039/501100004007 Ministry of Science, ICT and Future Planning 10.13039/501100003621 National Research Foundation of Korea 10.13039/501100003725 LAS MOE Universiti Malaya 10.13039/501100004386 Benemérita Universidad Autónoma de Puebla 10.13039/501100006348 Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional 10.13039/501100008688 Consejo Nacional de Ciencia y Tecnología 10.13039/501100003141 Laboratorio Nacional de Supercómputo del Sureste (Mexico) Secretaría de Educación Pública 10.13039/100010096 Universidad Autónoma de San Luis Potosí 10.13039/501100005324 MOS Ministry of Business, Innovation and Employment 10.13039/501100003524 Pakistan Atomic Energy Commission 10.13039/501100008689 Ministerstwo Nauki i Szkolnictwa Wy?szego 10.13039/501100004569 National Science Center 2014/14/M/ST2/00428 2014/13/B/ST2/02543 2014/15/B/ST2/03998 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406 Fundação para a Ciência e a Tecnologia 10.13039/501100001871 Joint Institute for Nuclear Research 10.13039/501100003822 Ministry of Education and Science of the Russian Federation 10.13039/501100003443 State Atomic Energy Corporation ROSATOM 10.13039/501100008687 Russian Academy of Sciences 10.13039/501100002674 Russian Foundation for Basic Research 10.13039/501100002261 NRC KI Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja 10.13039/501100004564 CPAN PCTI Ministry of Science,Technology and Research 10.13039/501100008981 Swiss Funding Agencies (Switzerland) MST Thailand Center of Excellence in Physics 10.13039/100012863 IPST STAR National Science and Technology Development Agency 10.13039/501100004192 Türkiye Bilimsel ve Teknolojik Ara?tirma Kurumu 10.13039/501100004410 Türkiye Atom Enerjisi Kurumu 10.13039/100010440 State Fund for Fundamental Research of Ukraine 10.13039/501100008690 Science and Technology Facilities Council 10.13039/501100000271 U.S. Department of Energy 10.13039/100000015 National Science Foundation 10.13039/100000001 H2020 Marie Sk?odowska-Curie Actions 10.13039/100010665 Seventh Framework Programme 10.13039/100011102 675440 A.G. Leventis Foundation 10.13039/501100004117 Alfred P. Sloan Foundation 10.13039/100000879 Alexander von Humboldt-Stiftung 10.13039/100005156 Federaal Wetenschapsbeleid 10.13039/501100002749 Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture 10.13039/501100003134 Agentschap voor Innovatie door Wetenschap en Technologie 10.13039/501100003132 Ministry of Education, Youth and Science 10.13039/501100003335 Magyar Tudományos Akadémia 10.13039/501100003825 New National Excellence Program ÚNKP Council of Science and Industrial Research, India Fundacja na rzecz Nauki Polskiej 10.13039/501100001870 Qatar National Research Fund 10.13039/100008982 Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de Maeztu MDM-2015-0509 Programa Severo Ochoa del Principado de Asturias European Social Fund 10.13039/501100004895 NSRF Chulalongkorn University 10.13039/501100002873 Welch Foundation 10.13039/100000928 C-1845 Weston Havens Foundation 10.13039/100011223

Funding Information:
We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers 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: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER, ERC IUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); NKFIA (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, 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, CPAN, PCTI and FEDER (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie program and the European Research Council and Horizon 2020 Grant, Contract No. 675440 (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 F.R.S.-FNRS and FWO (Belgium) under the “Excellence of Science—EOS”—be.h Project No. 30820817; the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Lendület (“Momentum”) Program and the János Bolyai Research Scholarship of the Hungarian Academy of Sciences, the New National Excellence Program ÚNKP, the NKFIA research Grants No. 123842, No. 123959, No. 124845, No. 124850 and No. 125105 (Hungary); the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund, the Mobility Plus program of the Ministry of Science and Higher Education, the National Science Center (Poland), Contracts Harmonia No. 2014/14/M/ST2/00428, Opus No. 2014/13/B/ST2/02543, No. 2014/15/B/ST2/03998, and No. 2015/19/B/ST2/02861, Sonata-bis No. 2012/07/E/ST2/01406; the National Priorities Research Program by Qatar National Research Fund; the Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de Maeztu, Grant No. MDM-2015-0509 and the Programa Severo Ochoa del Principado de Asturias; the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University and the Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); the Welch Foundation, Contract No. C-1845; and the Weston Havens Foundation (USA).

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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