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http://hdl.handle.net/2445/186399| Title: | Measurement of the Y(nS) polarizations in pp collisions at √{s}=7 and 8 TeV |
| Author: | LHCb Collaboration Coquereau, Samuel Fernandez, G. Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José |
| Keywords: | Hadrons Gran Col·lisionador d'Hadrons Experiments Hadrons Large Hadron Collider (France and Switzerland) Experiments |
| Issue Date: | Dec-2017 |
| Publisher: | Springer Verlag |
| Abstract: | The polarization of the Y(1S), Y(2S) and Y(3S) mesons, produced in pp collisions at centre-of-mass energies √{s}=7 and 8 TeV, is measured using data samples collected by the LHCb experiment, corresponding to integrated luminosities of 1 and 2 fb-1, respectively. The measurements are performed in three polarization frames, using Y → μμ decays in the kinematic region of the transverse momentum p T Υ < 30 GeV/ c and rapidity 2.2 < y Y < 4.5. No large polarization is observed. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1007/JHEP12(2017)110 |
| It is part of: | Journal of High Energy Physics, 2017, vol. 2017, num. 110, p. 60-80 |
| URI: | http://hdl.handle.net/2445/186399 |
| Related resource: | https://doi.org/10.1007/JHEP12(2017)110 |
| ISSN: | 1126-6708 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 678031.pdf | 1.56 MB | Adobe PDF | View/Open |
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