| Popis: |
A recent paper shook the Physics community with claims that the W boson mass estimates, obtained from earlier experiments at the Tevatron, indicate that it would be 0.1% heavier than expected from the SM, with a 7 sigma accuracy. It is argued that, if true, it would be the first really convincing sign of limitations of the Standard Model (SM). Many popular articles have already followed, and we expect many papers to be published on the subject. In this paper we repeat our past comments that it is never too wise to bet against the SM: chances are big that this could be a fluke like many others before. Yet, just in case that the mass discrepancies were true, we look at what can be predicted in terms of the mass of the W boson in the context of the SMG, where gravity effects are non-negligible at the scales of the . We show that, at the difference of the effect on fermions, that we previously discussed, in SMG , a combination of the masses of the Z and W bosons are expected to be slightly larger, while the Weinberg angle θW decreases, hence possibly justifying the direction of the reported result. It all confirms our motto that, in particle Physics, New Physics is often not that new. The SMG is enough to qualitatively explain the larger mass of the W boson, no need for new particles, new forces or supersymmetry. In a multi-fold universe, gravity emerges from Entanglement through the multi-fold mechanisms. As a result, gravity-like effects appear in between entangled particles, whether they be real or virtual. Long range, massless gravity results from entanglement of massless virtual particles. Entanglement of massive virtual particles leads to massive gravity contributions at very smalls scales. Multi-folds mechanisms also result into a spacetime that is discrete, with a random walk fractal structure and non-commutative geometry that is Lorentz invariant and where spacetime nodes and particles can be modeled with microscopic black holes. All these recover General Relativity (GR) at large scales and semi-classical models remain valid till smaller scale than usually expected. Gravity can therefore be added to the Standard Model (SM) resulting into the SMG. Of course, The SMG may also exist in non-multi-fold universes. |
