Signature of heavy Majorana neutrinos at a linear collider: Enhanced charged Higgs pair production
| dc.creator | Atwood, David | |
| dc.creator | Bar-Shalom, Shaouly | |
| dc.creator | Soni, Amarjit | |
| dc.date | 2006-12-31 | |
| dc.date | 2007-08-18 | |
| dc.date.accessioned | 2026-07-07T11:22:25Z | |
| dc.date.available | 2026-07-07T11:22:25Z | |
| dc.description | A charged Higgs pair can be produced at an ee collider through a t-channel exchange of a heavy neutrino (N) via e^+ e^- -> H^+ H^- and, if N is a Majorana particle, also via the lepton number violating (LNV) like-sign reaction e^\pm e^\pm \to H^\pm H^\pm. Assuming no a-priori relation between the effective eNH^+ coupling (ξ) and light neutrino masses, we show that this interaction vertex can give a striking enhancement to these charged Higgs pair production processes. In particular, the LNV H^-H^- signal can probe N at the ILC in the mass range 100 GeV < m_N < 10^4 TeV and with the effective mixing angle, ξ, in the range 10^{-4} < ξ^2 < 10^{-8} - well within its perturbative unitarity bound and the neutrinoless double beta decay (ββ_{0ν}) limit. The lepton number conserving (LNC) e^+ e^- \to H^+ H^- mode can be sensitive to, e.g., an O(10) TeV heavy Majorana neutrino at a 500 GeV International Linear Collider (ILC), if ξ^2 > 0.001. | |
| dc.description | Latex, 5 pages, 3 figures. V2 as published in PRD | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0701005 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0701005 | |
| dc.identifier | Phys.Rev.D76:033004,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.033004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/194564 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Signature of heavy Majorana neutrinos at a linear collider: Enhanced charged Higgs pair production | |
| dc.type | text |