CDF Multi-Muon Events and Singlet Extensions of the MSSM
| dc.creator | Domingo, Florian | |
| dc.creator | Ellwanger, Ulrich | |
| dc.date | 2008-12-05 | |
| dc.date | 2009-01-22 | |
| dc.date.accessioned | 2026-07-07T13:04:46Z | |
| dc.date.available | 2026-07-07T13:04:46Z | |
| dc.description | We discuss a generalization of the minimal supersymmetric extension of the Standard Model in the form of three additional singlet superfields, which would explain the essential features of the CDF multi-muon events presented recently: a large production cross section of ~ 100 pb originates from the production of a CP-odd scalar A with a mass in the 70 - 80 GeV range and a large value of tan(beta) ~ 40. The CP-odd scalar A decays dominantly into CP-odd and CP-even scalars a_1 and h_1, which generate decay cascades h_1 -> 2 h_2 -> 4 a_2 -> 8 tau-leptons, and a_1 -> h_1 a_2 with h_1 decaying as above. The decay a_2 -> tau+ tau- is slow, leading to a lifetime of O(20) ps. The phenomenology of the model differs from similar scenarios presented before in that one of the two cascades leads to 10 instead of 8 tau-leptons, and additional production processes like associate A production with b b-bar pairs are relevant. | |
| dc.description | 10 pages, comments on the required total cross section added, to appear in MPLA | |
| dc.identifier | https://arxiv.org/abs/0812.1167 | |
| dc.identifier | http://arxiv.org/abs/0812.1167 | |
| dc.identifier | Mod.Phys.Lett.A24:557-566,2009 | |
| dc.identifier | doi:10.1142/S0217732309030448 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/227282 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | CDF Multi-Muon Events and Singlet Extensions of the MSSM | |
| dc.type | text |