Coupling constants energy dependence MSSM extrapolation

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Franzl aus tirol

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https://www.dewiki.de/b/1b0e1a

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Beschreibung:

Inverse coupling constants as a function of the energy. Extrapolation to high energy according to the minimal supersymmetric model (MSSM).

• ${\displaystyle \alpha _{1}\sim g'}$ weak coupling of hypercharged fermions to ${\displaystyle B^{0}}$ (${\displaystyle U(1)_{Y}}$)
• ${\displaystyle \alpha _{2}\sim g}$ weak coupling of left handed fermions to ${\displaystyle W^{0},W^{1},W^{2}}$ (${\displaystyle SU(2)_{L}}$)
• ${\displaystyle \alpha _{3}\sim g_{s}}$ strong coupling of quarks to eight gluons (${\displaystyle SU(3)_{C}}$)

References:

• Hitoshi Murayama: Supersymmetry phenomenology, 2000, https://arxiv.org/abs/hep-ph/0002232
• Wim de Boer: Grand Unified Theories and Supersymmetry in Particle Physics and Cosmology, 2001, https://arxiv.org/abs/hep-ph/9402266v5

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