Moderately light charged Higgs in \cp MSSM and NMSSM
| dc.creator | Godbole, Rohini M. | |
| dc.date | 2007-01-23 | |
| dc.date.accessioned | 2026-07-07T10:37:48Z | |
| dc.date.available | 2026-07-07T10:37:48Z | |
| dc.description | In this talk I discuss some aspects of the phenomenology of a moderately light charged Higgs ($H^\pm$) with a mass $\gts 130$ GeV, lighter than the top quark, at the LHC. A charged Higgs in this mass range is still allowed in next-to-minimal Supersymmetric Standard Model (NMSSM) at low $\tan β$ as well as in CP-violating (\cp) Minimal Supersymmetric Standard Model (MSSM) for a certain choice of \cp parameters, still respecting all the LEP-II bounds. In both the cases, the $H^\pm$ has a large branching ratio in the $W^\pm ϕ$ channel, where $ϕ$ denotes a generic Higgs which is dominantly pseudoscalar and hence may be substantially lighter than the LEP-II mass bound. This $ϕ$ decays dominantly into a $b \bar b$ pair. Thus production of $H^\pm$ in the top decay gives a striking $t \bar t$ signal at the LHC, where one of the top quarks decays into the $bb \bar b W$ channel, via $t \to b H^\pm, H^\pm \to ϕ$ and $ϕ\to b \bar b$. The characteristic correlation between the $b \bar b$, $b \bar b W$ and $b b \bar b W$ invariant mass peaks helps reduce the Standard Model (SM) background very effectively. For these low values of $\tan β$ the $H^\pm \to τν_τ$ channel does not provide any reach for the $H^\pm$. Thus this is a signal for both a light charged $H^\pm$ and a light $ϕ$, which is mostly pseudoscalar in nature and decays dominantly into a $b \bar b$ pair. | |
| dc.description | LaTeX, six pages, four figures. Talk presented at the IPM School and Conference on Lepton Hadron Physics, Tehran, May 2006 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0701193 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0701193 | |
| dc.identifier | ECONFC0605151:0016,2006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/180501 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Moderately light charged Higgs in \cp MSSM and NMSSM | |
| dc.type | text |