New evidence for second generation weak bosons predicted by TGD

Already earlier evidence for the breaking of lepton universality has been found in the decays of beauty meson B consisting of b quark and d quark. The breaking of lepton universality means that lepton generations (electron, muon, tau and corresponding neutrinos) are not identical with respect to weak interactions. Indeed, there were indications that the decays do not occur with the same rate to electron -, muon, and tau pairs (there are small corrections breaking the universality due to different lepton masses). A possible reason is that there exists new weak bosons, whose couplings are not universal. What is known as Z' boson would make itself visible in the decays of B.

Now additional evidence for the existence of this kind of weak boson has emerged. If I understood correctly, the average angle between the decay products of B meson is not quite what it is predicted to be. This is interpreted as an indication that Z' type boson appears as an intermediate state in the decay.

What says TGD? TGD predicts three gauge boson families and the new boson families have couplings to fermions which are not universal (see the earlier posting) . There is indeed evidence for the Higgs of the second family as a bump predicted to have mass 32 times higher than ordinary Higgs, which makes rather precisely 4 TeV.

This coupling could explain the breaking of universality in the decays of B boson. In TGD Z' would correspond to second generation Z boson. p-Adic length scale hypothesis plus assumption that new Z boson corresponds to Gaussian Mersenne M_G,79 =(1+i)⁷⁹-1 predicts that its mass is by factor 32 higher than mass of ordinary Z boson making 2.9 TeV for 91 GeV mass for Z. If I remember correctly, there are indications for a bump at this mass value. Leptoquark made of right handed neutrino and quark is less plausible explanation but predicted by TGD as squark.

The breaking of the universality is characterized by charge matrices of weak bosons for the dynamical SU(3) assignable with family replication. The first generation corresponds to unit matrix whereas higher generation charge matrices can be expressed as orthogonal combinations of isospin and hypercharge matrices I₃ and Y. I₃ distinguishes between tau and lower generations (third experiment) but not between the lowest two generations. There is however evidence for this (the first two experiments above). Therefore a mixing the I₃ and Y should occur.

Does the breaking of universality occurs also for color interactions? If so, the predicted M₈₉ and M_B,79 hadron physics would break universality in the sense that the couplings of their gluons to quark generations would not be universal. This also forces to consider to the possibility that there are new quark families associated with these hadron physics but only new gluons with couplings breaking lepton universality. This looks somewhat boring at first.

One the other hand, there exist evidence for bumps at masses of M₈₉ hadron physics predicted by scaling to be 512 time heavier than the mesons of the ordinary M₁₀₇ hadron physics (see the earlier posting) . According to the prevailing wisdom coming from QCD, the meson and hadron masses are however known to be mostly due to gluonic energy and current quarks give only a minor contribution. In TGD one would say that color magnetic body gives most of the meson mass. Thus the hypothesis would make sense. One can also talk about constituent quark masses if one includes the mass of corresponding portion of color magnetic body to quark mass. These masses are much higher than current quark masses and it would make sense to speak about constituent quarks for M₈₉ hadron physics.

For background see the chapter New particle physics predicted by TGD: part I.

For a summary of earlier postings see Links to the latest progress in TGD.