| Thème(s) : |
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Physique/Physique des Hautes Energies - Phénoménologie
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| Titre : |
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Heavy Vector-like quark with charge 5/3 at the LHC |
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| Auteur : |
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G. Cacciapaglia1, A. Deandrea1, S. Perries1, V. Sordini1, L. Panizzi1 |
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| Laboratoire : |
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| Résumé : |
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We study the phenomenology at the Large Hadron Collider of an exotic vector-like quark X with charge +5/3. We relax the assumption of a 100% branching into W t and allow for an arbitrary rate into W plus light quarks, thus covering all possible scenarios. Sizeable decays into light quarks can be achieved, for instance, in a model where the X quark is embedded in a doublet with hypercharge 7/6, which also contains a t' quark. We study the bounds on the parameter space of this model, and perform a detailed simulation of the X pair production and decays. We show that the final state with W t W q, where q=u or c, contributes to the same sign dilepton searches, and that the reach can be improved with alternative cuts optimised on such final state. |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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2013 |
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| Nom du périodique : |
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| Journal of High Energy Physics |
| Publisher |
Institute of Physics (IOP) |
| ISSN |
1126-6708 (eISSN : 1029-8479) |
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| Volume : |
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1303 |
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| Page/Article : |
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004 |
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| Commentaire : |
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21 pages, 8 figures, 6 tables. arXiv admin note: text overlap with arXiv:0904.0705 by other authors |
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