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http://hdl.handle.net/2445/186416| Title: | Updated search for long-lived particles decaying to jet pairs |
| Author: | Camboni, Alessandro 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 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: | Dec-2017 |
| Publisher: | Società Italiana di Fisica & Springer Verlag |
| Abstract: | A search is presented for long-lived particles with a mass between 25 and 50 GeV/c2 and a lifetime between 2 and 500 ps, using proton-proton collision data corresponding to an integrated luminosity of 2.0 fb^{-1}, collected by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. The particles are assumed to be pair-produced in the decay of a 125 GeV/c2 Standard-Model-like Higgs boson. The experimental signature is a single long-lived particle, identified by a displaced vertex with two associated jets. No excess above background is observed and limits are set on the production cross-section as a function of the mass and lifetime of the long-lived particle. |
| Note: | Reproducció del document publicat a: |
| It is part of: | European Physical Journal C, 2017, vol. 77, num. 812, p. 14-38 |
| URI: | http://hdl.handle.net/2445/186416 |
| ISSN: | 1434-6044 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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| 678028.pdf | 1.24 MB | Adobe PDF | View/Open |
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