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http://hdl.handle.net/2445/185687| Title: | Observation of associated production of a Z boson with a D meson in the forward region |
| Author: | Camboni, Alessandro Comerma-Montells, A. Garrido Beltrán, Lluís Graciani Diaz, Ricardo Graugés Pous, Eugeni Picatoste Olloqui, E. Potterat, C. Rives Molina, V. Ruiz, Hugo 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: | Apr-2014 |
| Publisher: | Springer Verlag |
| Abstract: | A search for associated production of a Z boson with an open charm meson is presented using a data sample, corresponding to an integrated luminosity of 1.0 fb−1 of proton-proton collisions at a centre-of-mass energy of 7 TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D0 meson and four candidate events for a Z boson with a D+ meson are observed with a combined significance of 5.1 standard deviations. The production crosssections in the forward region are measured to be σZ→µ+µ−,D0 = 2.50 ± 1.12 ± 0.22 pb σZ→µ+µ−,D+ = 0.44 ± 0.23 ± 0.03 pb, where the first uncertainty is statistical and the second systematic |
| Note: | Reproducció del document publicat a: https://doi.org/10.1007/JHEP04(2014)091 |
| It is part of: | Journal of High Energy Physics, 2014, vol. 4, num. 91, p. 1-18 |
| URI: | http://hdl.handle.net/2445/185687 |
| Related resource: | https://doi.org/10.1007/JHEP04(2014)091 |
| ISSN: | 1126-6708 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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