publication . Article . Other literature type . Preprint . 2017

Observation of $B^+\rightarrow J/\psi 3\pi^+ 2\pi^-$ and $B^+\rightarrow \psi(2S) \pi^+\pi^+\pi^-$ decays

Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; ...
Open Access English
  • Published: 06 Feb 2017
  • Publisher: HAL CCSD
Abstract
The decays $B^+\rightarrow J/\psi 3\pi^+ 2\pi^-$ and $B^+\rightarrow \psi(2S) \pi^+\pi^+\pi^-$ are observed for the first time using a data sample corresponding to an integrated luminosity of $3.0fb^{-1}$, collected by the LHCb experiment in proton-proton collisions at the centre-of-mass energies of 7 and 8 TeV. The branching fractions relative to that of $B^+ \rightarrow \psi(2S)K^+$ are measured to be \begin{eqnarray*} \frac {\mathcal{B}\left(B^+\rightarrow J/\psi 3\pi^+ 2\pi^- \right)} {\mathcal{B}\left(B^+ \rightarrow \psi(2S)K^+ \right)} & = & \left(1.88\pm0.17\pm0.09\right)\times10^{-2}, \frac {\mathcal{B}\left(B^+\rightarrow \psi(2S) \pi^+\pi^+\pi^- \righ...
Subjects
arXiv: High Energy Physics::Experiment
free text keywords: Systematic Uncertainty, Primary Vertex, Combinatorial Background, LHCb Experiment, Muon Candidate, LHCb - Abteilung Hinton, Particle Physics - Experiment, Physics Institute, 530 Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], MESONS, TOOL, To be checked by Faculty, Physics and Astronomy (miscellaneous), Engineering (miscellaneous), HEP, LHC, LHCb, Bottom mesons (|B|>0), Hadronic decays of bottom mesons, Heavy quarkonia, Quantum chromodynamics: Experimental tests, Settore FIS/01 - Fisica Sperimentale, Settore FIS/04 - Fisica Nucleare e Subnucleare, Science & Technology, Physical Sciences, Physics, Particles & Fields, hep-ex, Nuclear & Particles Physics, 0206 Quantum Physics, 0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics, Systematic Uncertainty Primary Vertex Combinatorial Background LHCb Experiment Muon Candidate, High Energy Physics - Experiment, Regular Article - Experimental Physics, Physics, Pi, Particle physics
25 references, page 1 of 2

1. Particle Data Group, C. Patrignani et al., Review of particle physics. Chin. Phys. C 40, 100001 (2016)

2. LHCb collaboration, R. Aaij et al., Evidence for the decay Bc+ → J/ψ 3π +2π −. JHEP 05, 148 (2014). arXiv:1404.0287

3. M. Bauer, B. Stech, M. Wirbel, Exclusive non-leptonic decays of D, Ds+, and B-mesons. Z. Phys. C 34, 103 (1987) [OpenAIRE]

4. M. Wirbel, Description of weak decays of B and D mesons. Prog. Part. Nucl. Phys. 21, 33 (1988)

5. A.V. Luchinsky, Production of charged π mesons in exclusive Bc+ → V(P) + nπ decays. Phys. Rev. D 86, 074024 (2012). arXiv:1208.1398 [OpenAIRE]

6. A.K. Likhoded, A.V. Luchinsky, Production of a pion system in exclusive Bc+ → V(P) + nπ decays. Phys. Atom. Nucl. 76, 787 (2013). [Yad. Fiz. 76, 838 (2013)] [OpenAIRE]

7. A. Berezhnoy, A. Likhoded, A. Luchinsky, Bc+ → J(Bs0, Bs∗) + nπ decays. PoS QFTHEP2011, 076 (2013). arXiv:1111.5952 [OpenAIRE]

8. A.K. Likhoded, A.V. Luchinsky, Light hadron production in Bc → J/ψ + X decays. Phys. Rev. D 81, 014015 (2010). arXiv:0910.3089 [OpenAIRE]

9. LHCb collaboration, A.A. Alves Jr. et al., The LHCb detector at the LHC. JINST 3, S08005 (2008)

10. LHCb collaboration, R. Aaij et al., LHCb detector performance. Int. J. Mod. Phys. A 30, 1530022 (2015). arXiv:1412.6352

11. R. Aaij et al., The LHCb trigger and its performance in 2011. JINST 8, P04022 (2013). arXiv:1211.3055

12. T. Sjöstrand, S. Mrenna, P. Skands, PYTHIA 6.4 physics and manual. JHEP 05, 026 (2006). arXiv:hep-ph/0603175 [OpenAIRE]

13. T. Sjöstrand, S. Mrenna, P. Skands, A brief introduction to PYTHIA 8.1. Comput. Phys. Commun. 178, 852 (2008). arXiv:0710.3820 [OpenAIRE]

14. I. Belyaev et al., Handling of the generation of primary events in Gauss, the LHCb simulation framework. J. Phys. Conf. Ser. 331, 032047 (2011)

15. D.J. Lange, The EvtGen particle decay simulation package. Nucl. Instrum. Methods A 462, 152 (2001)

25 references, page 1 of 2
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publication . Article . Other literature type . Preprint . 2017

Observation of $B^+\rightarrow J/\psi 3\pi^+ 2\pi^-$ and $B^+\rightarrow \psi(2S) \pi^+\pi^+\pi^-$ decays

Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; ...