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Charge asymmetries of top quarks: a window to new physics at hadron colliders
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Charge asymmetries of top quarks: a window to new physics at hadron colliders
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| dc.contributor.author | Ferrario, Paola | |
| dc.contributor.author | Rodrigo García, Germán Vicente | |
| dc.date.accessioned | 2015-06-19T11:07:40Z | |
| dc.date.available | 2015-06-19T11:07:40Z | |
| dc.date.issued | 2009 | |
| dc.identifier.citation | Ferrario, Paola Rodrigo García, Germán Vicente 2009 Charge asymmetries of top quarks: a window to new physics at hadron colliders Journal of physics. Conference series 1 197 205 | |
| dc.identifier.uri | http://hdl.handle.net/10550/44629 | |
| dc.description.abstract | With the next start of LHC, a huge production of top quarks is expected. There are several models that predict the existence of heavy colored resonances decaying to top quarks in the TeV energy range. A peak in the differential cross section could reveal the existence of such a resonance, but this is experimentally challenging, because it requires selecting data samples where top and antitop quarks are highly boosted. Nonetheless, the production of such resonances might generate a sizable charge asymmetry of top versus antitop quarks. We consider a toy model with general flavour independent couplings of the resonance to quarks, of both vector and axial-vector kind. The charge asymmetry turns out to be a more powerful observable to detect new physics than the differential cross section, because its highest statistical significance is achieved with data samples of top-antitop quark pairs of low invariant masses. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Journal of physics. Conference series , 2009, num. 1, p. 197-205 | |
| dc.subject | Física | |
| dc.title | Charge asymmetries of top quarks: a window to new physics at hadron colliders | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-06-19T11:07:40Z | |
| dc.identifier.doi | 10.1088/1742-6596/171/1/012091 | |
| dc.identifier.idgrec | 043178 | |
| dc.rights.accessRights | open access | es_ES |
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