Are leptoquark bosons confined?
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- (5).The V15 generator eventually contributes to the electromagnetic currents, as described in ref. (4). and inC. Elias andA. R. Swift:Phys. Rev. D,15, 1937 (197). We assume for simplicity that color-SU 4 is broken toSU 3; hence V15 acquires a mass comparable to that of the leptoquark bosons. A more physical approach is to haveSU 4×U 1 break toSU 8×U 1 e.m., whereU 1 e.m.is a linear combination of the originalU 1 and the V15 generator ofSU 4.ADSCrossRefGoogle Scholar
- (8).These arguments are the same as those used to justify the decoupling theorem (T. Appelquist andJ. Carazzone:Phys. Rev. D,11, 2856 (1975)). For example, supposeSU nis broken toSU 3 at a symmetry breaking mass scaleM. If μ≪M, loops involvingSU ngauge bosons not contained in theSU 3-gauge multiplet do not contribute to the runningSU 3 coupling constant (i.e., are decoupled fromSU 3) for precisely the reasons stated in the text. A difference between such conventional applications of the decoupling theorem (in which external particles belong to multiplets of a preserved subgroup) and the application with external LQB-bosons, is that the evolution of the running LQB mass [μ(m x)] must also be considered to solve the renormalization group equation.ADSCrossRefGoogle Scholar
- (9).The relationship between concepts of confiniment and infra-red slavery is discussed in sect.3 ofW. Marciano andH. Pagels:Phys. Rep.,36 C, 139 (1977).Google Scholar
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