Production and decays of the light pseudoscalar boson $η$ at the LHC in the simplest little Higgs model
| dc.creator | Cheung, Kingman | |
| dc.creator | Song, Jeonghyeon | |
| dc.creator | Tseng, Poyan | |
| dc.creator | Yan, Qi-Shu | |
| dc.date | 2008-06-27 | |
| dc.date | 2008-07-08 | |
| dc.date.accessioned | 2026-07-07T12:27:26Z | |
| dc.date.available | 2026-07-07T12:27:26Z | |
| dc.description | In many extensions of the standard model, the Higgs sector often contains an additional pseudoscalar boson. A good example is the SU(3) simplest little Higgs model, which accommodates a light pseudoscalar boson $η$ with quite different characteristics from those in other multi-Higgs-doublet models. We study various phenomenological signatures of the $η$ at the LHC. In particular, we calculate in details both production and decays in the Drell-Yan type channel $q \bar{q} \to Z/Z' \to h η$, and in the associated production with a $t\bar t$ pair, $gg (q\bar q) \to t \bar t η$. We emphasize the $τ^+ τ^-$ decay mode of the $η$ boson when its mass is below the $b\bar b$ threshold. We show that $t\bar t η$ production is in fact large enough to give a sizable number of events while suppressing the backgrounds. We also comment on the direct gluon fusion process and the indirect decay from the heavy $T$ quark ($T \to t η$) | |
| dc.description | 25 pages, 10 figures; references added | |
| dc.identifier | https://arxiv.org/abs/0806.4411 | |
| dc.identifier | http://arxiv.org/abs/0806.4411 | |
| dc.identifier | Phys.Rev.D78:055015,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.055015 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/215204 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Production and decays of the light pseudoscalar boson $η$ at the LHC in the simplest little Higgs model | |
| dc.type | text |