Higgs Precision Measurements and Flavor Physics: A Supersymmetric Example

Dec 14, 2013
11 pages
Published in:
  • Chin.Sci.Bull. 59 (2014) 3703-3708
e-Print:

Citations per year

20132014201501
Abstract: (arXiv)
[Review for "Chinese Science Bulletin" and CEPC+SPPC Proposal] Rare decays in flavor physics often suffer from Helicity suppress and Loop suppress. Helicity flip is a direct consequence of chiral U(3)U(3) symmetry breaking and electroweak symmetry breaking. The identical feature is also shared by the mass generation of SM fermions. In this review, we use MSSM as an example to illustrate an explicit connection between bottom Yukawa coupling and rare decay process of bsγb\to s\gamma. We take a symmetry approach to study the common symmetry breaking in supersymmetric correction to bottom quark mass generation and bsγb\to s\gamma. We show that Large Peccei-Quinn symmetry breaking effect and RR-symmetry breaking effect required by bsγb\to s\gamma inevitably lead to significant reduction of bottom Yukawa yb{y}_{b}. To compromise the reduction in bbˉb\bar{b}, a new decay is also needed to keep the Higgs total width as the SM value.
Note:
  • Review for Chinese Science Bulletin and CEPC SPPC Proposal
  • symmetry breaking: effect
  • electroweak interaction: symmetry breaking
  • symmetry breaking: Peccei-Quinn
  • supersymmetry: correction
  • quark: mass generation
  • coupling: Yukawa
  • rare decay
  • helicity
  • flavor
  • minimal supersymmetric standard model