Mass bounds on a very light neutralino
By H. Dreiner, Sven Heinemeyer, O. Kittel, U. Langenfeld, A. Weber, Georg Weiglein. 2009
146 citations recorded by the source corpus.
Within the Minimal Supersymmetric Standard Model (MSSM) we systematically investigate the bounds on the mass of the lightest neutralino. We allow for non-universal gaugino masses and thus even consider massless neutralinos, while assuming in general that R-parity is conserved. Our main focus is on laboratory constraints. We consider collider data, precision observables, and also rare meson decays to very light neutralinos. We then discuss the astrophysical and cosmological implications. We find that a massless neutralino is allowed by all existing experimental data and astrophysical and cosmological observations.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2d75db464a541daadec0d36410652edbfe09a8f6
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
- T. Bringmann
- Michael Krämer
- H. Dreiner
- Jonathan L. Feng
- Philip Bechtle
- Werner Porod
- Florian Staub
- J. Lansberg
Citations in the corpus
- Dark Matter Candidates from Particle Physics and Methods of Detection (2010, background): “This mass is lower than typically expected for WIMPs, but even massless neutralinos are allowed if one relaxes the constraint of gaugino mass unification (85).”
- Constrained supersymmetry after two years of LHC data: a global view with Fittino (2012, background): “Because of gaugino mass unification, the limit on the chargino mass indirectly also excludes neutralinos with masses mχ01 < 50GeV in the constrained models considered here [101, 124, 125].”
- Constraining light dark matter with low-energy e+e− colliders (2013, unknown): “[1–17].”