？ composite ？ H. Fritzsch LMU Munich
standard model elementary gauge bosons gauge group SU(2) x U(1)
„Higgs“ - scalar
elementary gauge bosons gauge group SU(2)
„Higgs“ - scalar
composite mesons QCD
Dynamical mixing of rho meson and photon:
Standard Model
composite weak bosons
QHD
Standard Model
4th color
QHD Dynamical mixing of W-boson and photon
vector gauge theory chiral gauge theory
??? QHD gauge group ???
New: isoscalar
Example: M(X)=0.8 TeV
Coupling of X to leptons and quarks: coupling of Z - boson
X – decay into muons Z – decay into muons:
Total width of Z: 2.5 GeV
=>complexities of strong interactions ~ 1 GeV
=> complexities of QHD interactions ~ 1 TeV
three SU(2) singlets S(0) = 0 (0) S(1) = 0 (1) S(2) = 0 (2)
three SU(2) triplets T(0) = 1 (0) T(1) = 1 (1) T(2) = 1 (2)
0.1 TeV 0.5 TeV
mass spectrum
100 %
59 %
36 %
5 %
S(0): 0.05 Expected <
weak bosons composite leptons and quarks composite
color lepton number
QHD gauge boson
s-wave
p-wave
5 % 2012
) 2013