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http://hdl.handle.net/2445/186475| Title: | Observation of the B+→D*-K+π+ decay |
| Author: | Camboni, Alessandro Coquereau, S. Fernandez, G. Garrido Beltrán, Lluís Gascon, D. Graciani Diaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, E. Rives Molina, V. Sanchez Gonzalo, D. Alfonso Albero, Alejandro Calvo Gomez, M. Gironella Gironell, P. Vazquez Gomez, R. LHCb Collaboration |
| Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
| Issue Date: | Jul-2017 |
| Publisher: | American Physical Society |
| Abstract: | The B+→D*-K+π+decaypotentially 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. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.96.011101 |
| It is part of: | Physical Review D, 2017, vol. 96, num. 011101, p. 1-10 |
| URI: | http://hdl.handle.net/2445/186475 |
| Related resource: | https://doi.org/10.1103/PhysRevD.96.011101 |
| ISSN: | 2470-0010 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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