Long life stau in the minimal supersymmetric standard model
| dc.creator | Jittoh, Toshifumi | |
| dc.creator | Sato, Joe | |
| dc.creator | Shimomura, Takashi | |
| dc.creator | Yamanaka, Masato | |
| dc.date | 2005-12-15 | |
| dc.date | 2006-05-11 | |
| dc.date.accessioned | 2026-07-07T11:58:39Z | |
| dc.date.available | 2026-07-07T11:58:39Z | |
| dc.description | We study the stau lifetime in a scenario with the LSP taken to be a neutralino and the NLSP being a stau, based on the minimal supersymmetric Standard Model. The mass difference between the LSP and NLSP, $δm$, must satisfy $δm/m_{\tildeχ} \sim$ a few % or less for coannihilation to occur, where $m_{\tildeχ}$ is the neutralino mass. We calculate the stau lifetime from the decay modes $\tildeτ\to \tildeχτ$, $\tildeχν_τπ$, and $\tildeχν_τμ(e)ν_{μ(e)}$ and discuss its dependence on various parameters. We find that the lifetime is in the range $10^{-22}$--$10^{16}$ sec for $10^{-2} \le δm \le 10$ GeV. We also discuss the connection with lepton flavor violation if there is mixing between sleptons. | |
| dc.description | 15 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0512197 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0512197 | |
| dc.identifier | Phys.Rev.D73:055009,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.73.055009 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206300 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.title | Long life stau in the minimal supersymmetric standard model | |
| dc.type | text |