Limits on SUSY particle Spectra from Proton Stability and Dark Matter Constraints
| dc.creator | Arnowitt, R. | |
| dc.creator | Nath, Pran | |
| dc.date | 1998-01-08 | |
| dc.date.accessioned | 2026-07-07T11:47:50Z | |
| dc.date.available | 2026-07-07T11:47:50Z | |
| dc.description | It is shown that the combined constraints on the amount of cold dark matter and of proton stability produce a stringent upper limit on the gluino mass $m_{\tilde g}$ (and hence on the lightest neutralino mass $m_{χ_1^0}\simeq m_{\tilde g}/7$) for a large class of gravity mediated supergravity unified models. One finds that for the minimal SU(5) model current data (Kamiokande) restricts $m_{\tilde g}\leq 400$ GeV for a scalar soft breaking mass $m_0\leq 1$ TeV. Expected future data from Super Kamionkande and ICARUS will be sensitive to the entire range of gluino mass for $m_0\leq 1$ TeV, and be able to exclude the region $m_{\tilde g}\geq 500$ GeV for $m_0\leq 5$ TeV. Effects of quark mass textures are studied and one finds that the bound $m_{\tilde g}\leq 500$ GeV holds when the experimental proton lifetime for the $p\to \bar νK^+$ mode becomes $\geq 5\times 10^{32}$ yr.Implications of these results for a test of these models at the Tevatron and at the LHC are discussed. The effects of non-universal soft breaking in the Higgs and the third generation squark sectors are also examined, and it is found that the proton lifetime is sensitive to these non-universal effects. The current data already eliminates some regions of non-universalities. The constraints of proton stability on the direct detection of dark matter are seen to reduce the maximum event rates by as much as a factor of $10^3$. | |
| dc.description | 13 pages including 5 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9801246 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9801246 | |
| dc.identifier | Phys.Lett.B437:344-350,1998 | |
| dc.identifier | doi:10.1016/S0370-2693(98)00931-9 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202711 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Limits on SUSY particle Spectra from Proton Stability and Dark Matter Constraints | |
| dc.type | text |