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http://hdl.handle.net/2445/185629| Title: | Measurement of psi (2S) polarisation in pp collisions at root s=7 TeV |
| Author: | Camboni, Alessandro Comerma-Montells, A. Garrido Beltrán, Lluís Graciani Díaz, 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: | May-2014 |
| Publisher: | Società Italiana di Fisica & Springer Verlag |
| Abstract: | The polarisation of prompt ψ(2S) mesons is measured by performing an angular analysis of ψ(2S)→ µ +µ − decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb−1 , collected by the LHCb detector at a centre-ofmass energy of 7 TeV. The polarisation is measured in bins of transverse momentum pT and rapidity y in the kinematic region 3.5 < pT < 15 GeV/c and 2.0 < y < 4.5, and is compared to theoretical models. No significant polarisation is observed. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1140/epjc/s10052-014-2872-9 |
| It is part of: | European Physical Journal C, 2014, vol. 74, num. 5, p. 2872 |
| URI: | http://hdl.handle.net/2445/185629 |
| Related resource: | https://doi.org/10.1140/epjc/s10052-014-2872-9 |
| ISSN: | 1434-6044 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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