Multi-Higgs Doublet Model: Can It Account for l^+l^-γγEvents?
| dc.creator | Cvetic, G. | |
| dc.creator | Nowakowski, M. | |
| dc.creator | Wu, Y. -L. | |
| dc.date | 1993-02-16 | |
| dc.date.accessioned | 2026-07-07T12:03:06Z | |
| dc.date.available | 2026-07-07T12:03:06Z | |
| dc.description | Motivated by recent experiments at LEP ($Z \to l^+l^-γγ$, with $M_{γγ} \simeq 59 GeV$), we examine the possibility that such events are explained by a Bjorken process with a resonant Higgs ($M_{h^o} \simeq 59 GeV$) decaying to $γγ$. Our model is an N-doublet-Higgs model without CP-violation. Under the simplifying assumption that $(N-k)$ doublets ($k \geq 1$) decouple from the fermion sector, we could explain the observed events if: i) $(N-1) \geq 2$ and ii) the masses of the corresponding $(N-1)$ neutral scalars are either completely or almost degenerate, i.e. the decay $Z \to l^+l^- γγ$ proceeds now via several overlapping resonances. | |
| dc.description | 10 pages | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9302262 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9302262 | |
| dc.identifier | NuovoCim.A107:271-278,1994 | |
| dc.identifier | doi:10.1007/BF02781558 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207668 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Multi-Higgs Doublet Model: Can It Account for l^+l^-γγEvents? | |
| dc.type | text |