Abstract
The B+→D∗-K+π+ decay potentially provides an excellent way to investigate charm meson spectroscopy. The decay is searched for in a sample of proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. A clear signal is observed, and the ratio of its branching fraction to that of the B+→D∗-π+π+ normalization channel is measured to be B(B+→D∗-K+π+)/B(B+→D∗-π+π+)=(6.39±0.27±0.48)×10-2, where the first uncertainty is statistical and the second is systematic. This is the first observation of the B+→D∗-K+π+ decay.
Original language | English |
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Article number | 011101 |
Pages (from-to) | 1-10 |
Number of pages | 10 |
Journal | Physical Review D |
Volume | 96 |
Issue number | 1 |
DOIs | |
Publication status | Published - 19 Jul 2017 |
Funding
We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil) MOST and NSFC (China) CNRS/IN2P3 (France) BMBF, DFG and MPG (Germany) INFN (Italy) NWO (The Netherlands) MNiSW and NCN (Poland) MEN/IFA (Romania) MinES and FASO (Russia) MinECo (Spain) SNSF and SER (Switzerland) NASU (Ukraine) STFC (United Kingdom) NSF (USA). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (The Netherlands), PIC (Spain), GridPP (United Kingdom), RRCKI and Yandex LLC (Russia), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), PL-GRID (Poland) and OSC (USA). We are indebted to the communities behind the multiple open source software packages on which we depend. Individual groups or members have received support from AvH Foundation (Germany).
Funders | Funder number |
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GridPP | |
IFIN-HH | |
NSFC (China) CNRS/IN2P3 | |
PL-GRID | |
RRCKI | |
SURF | |
Yandex LLC | |
National Science Foundation | |
Alexander von Humboldt-Stiftung | |
Karlsruhe Institute of Technology | |
CERN | |
Science and Technology Facilities Council | ST/N000250/1, ST/H006737/1, ST/N000331/1, GRIDPP, LHCb Upgrades, 1707993, ST/J004332/1, 1641747, 1681016, ST/K003410/1, 1708182, ST/G005974/1, LHCb, ST/N000234/1 |
Deutsches Elektronen-Synchrotron | |
Deutsche Forschungsgemeinschaft | |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | 166208 |
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior | |
Nederlandse Organisatie voor Wetenschappelijk Onderzoek | |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
Instituto Nazionale di Fisica Nucleare | |
Narodowe Centrum Nauki | |
Ministerstwo Nauki i Szkolnictwa Wyższego | |
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro | |
National Academy of Sciences of Ukraine | |
Financiadora de Estudos e Projetos | |
Institut national de physique nucléaire et de physique des particules | |
Federal Agency for Scientific Organizations | |
Sociedad Española de Reumatología |