Constraints on Neutralino masses and mixings from Cosmology and Collider Physics
| dc.creator | Langenfeld, Ulrich | |
| dc.date | 2007-07-11 | |
| dc.date | 2007-08-09 | |
| dc.date.accessioned | 2026-07-07T08:22:43Z | |
| dc.date.available | 2026-07-07T08:22:43Z | |
| dc.description | Bounds on cross section measurements of chargino pair production at LEP yield a bound on the chargino mass. If the GUT relation is assumed, the lightest neutralino must be heavier than $\approx 45 -50\GeV$. If no GUT relation is assumed, no lower bound on the neutralino mass exists. I derive mass bounds on the lightest neutralino from relic density measurements for relativistic and non-relativistic neutralinos and I derive bounds on the selectron mass from the observed limits on the cross section of the neutralino pair production process $e^+e^-\to \x{1}\x{2}$ at LEP, if the lightest neutralino is massless. I further discuss radiative neutralino production and its background at the future ILC. Finally, I present a method to determine the neutralino couplings to right and left handed selectrons and Z bosons from cross section measurements of radiative neutralino production and neutralino pair production at the ILC. | |
| dc.description | PhD-Thesis, 101 pages | |
| dc.identifier | https://arxiv.org/abs/0707.1587 | |
| dc.identifier | http://arxiv.org/abs/0707.1587 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/135748 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Constraints on Neutralino masses and mixings from Cosmology and Collider Physics | |
| dc.type | text |