dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2013-09-30T18:54:31Z | |
dc.date.accessioned | 2014-05-20T14:09:54Z | |
dc.date.accessioned | 2022-10-05T15:05:42Z | |
dc.date.available | 2013-09-30T18:54:31Z | |
dc.date.available | 2014-05-20T14:09:54Z | |
dc.date.available | 2022-10-05T15:05:42Z | |
dc.date.created | 2013-09-30T18:54:31Z | |
dc.date.created | 2014-05-20T14:09:54Z | |
dc.date.issued | 2009-08-01 | |
dc.identifier | Journal of Physics G-nuclear and Particle Physics. Bristol: Iop Publishing Ltd, v. 36, n. 8, p. 7, 2009. | |
dc.identifier | 0954-3899 | |
dc.identifier | http://hdl.handle.net/11449/24229 | |
dc.identifier | 10.1088/0954-3899/36/8/085001 | |
dc.identifier | WOS:000267945900002 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3897424 | |
dc.description.abstract | Models of warped extra dimensions with custodial symmetry usually predict the existence of a light Kaluza-Klein fermion arising as a partner of the right-handed top quark, sometimes called light custodians which we will denote (b) over tilde (R). The production of these particles at the LHC can give rise to multi-W events which could be observed in same-sign dilepton channels, but its mass reconstruction is challenging. In this paper we study the possibility of finding a signal for the pair production of this new particle at the LHC focusing on a rarer, but cleaner decay mode of a light custodian into a Z boson and a b-quark. In this mode it would be possible to reconstruct the light custodian mass. In addition to the dominant standard model QCD production processes, we include the contribution of a Kaluza-Klein gluon first mode. We find that (b) over tilde (R) stands out from the background as a peak in the bZ invariant mass. However, when taking into account only the electronic and muonic decay modes of the Z boson and b-tagging efficiencies, the LHC will have access only to the very light range of masses, m((b) over tilde) = O(500) GeV. | |
dc.language | eng | |
dc.publisher | Iop Publishing Ltd | |
dc.relation | Journal of Physics G: Nuclear and Particle Physics | |
dc.relation | 3.456 | |
dc.relation | 1,513 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.title | Study of the discovery potential of light custodians in a clean decay channel at the LHC | |
dc.type | Artigo | |