Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/185473| Title: | Search for excited Bc + states |
| Author: | LHCb Collaboration Alfonso Albero, Alejandro Calvo Gómez, Míriam Camboni, Alessandro Coquereau, Samuel Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla |
| Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
| Issue Date: | 2018 |
| Publisher: | Springer Verlag |
| Abstract: | : A search is performed in the invariant mass spectrum of the B+ c π +π − system for the excited B+ c states Bc(21S0) + and Bc(23S1) + using a data sample of pp collisions collected by the LHCb experiment at the centre-of-mass energy of √ s = 8 TeV, corresponding to an integrated luminosity of 2 fb−1 . No evidence is seen for either state. Upper limits on the ratios of the production cross-sections of the Bc(21S0) + and Bc(23S1) + states times the branching fractions of Bc(21S0) + → B+ c π +π − and Bc(23S1) + → B∗+ c π +π − over the production cross-section of the B+ c state are given as a function of their masses. They are found to be between 0.02 and 0.14 at 95% confidence level for Bc(21S0) + and Bc(23S1) + in the mass ranges [6830, 6890] MeV/c2 and [6795, 6890] MeV/c2 , respectively. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1007/JHEP01(2018)138 |
| It is part of: | Journal of High Energy Physics, 2018, vol. 2018, num. 1, p. 1-18 |
| URI: | http://hdl.handle.net/2445/185473 |
| Related resource: | https://doi.org/10.1007/JHEP01(2018)138 |
| ISSN: | 1126-6708 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 684729.pdf | 544.39 kB | Adobe PDF | View/Open |
This item is licensed under a
Creative Commons License
