A Light bottom squark in the MSSM

Sep, 2000
15 pages
Published in:
  • JHEP 06 (2001) 006
e-Print:

Citations per year

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Abstract:
We study the compatibility of a light bottom squark M_{\tilde b}< O(10 GeV) in the unconstrained MSSM. We consider the one-loop radiative corrections which are large for a heavy gluino (> O(150 GeV)). We then consider the renormalization group flow up to the Grand Unified scale. For most regions of the parameter space with a light sbottom we find colour and charge breaking minima. Only a small window in gluino mass and tan(beta) is consistent with all bounds. This is alleviated by a light gluino, which is however only marginally experimentally allowed.
  • gauge field theory: SU(3) x SU(2) x U(1)
  • supersymmetry
  • squark: mass
  • squark: bottom
  • mass: pole
  • radiative correction
  • renormalization group
  • gluino: mass
  • grand unified theory
  • numerical calculations