# Physics

**Nonzero Theta13
and** **Neutrino Mixing Deviation from Bimaximal
Geometric Symmetry **

*The text below is part of a chapter of "Anomaly!" which I eventually removed from the book, mainly due to the strict page limit set by my publisher. It is a chapter that discusses the preparations for Run 2 of the Fermilab Tevatron, which started in 2002 and lasted almost 10 years. There were many, many stories connected to the construction of the CDF II detector, and it is a real pity that they did not get included in the book. So at least I can offer some of them here for your entertainment... [A disclaimer: the text has not been proofread and is in its initial, uncorrected state.]*

The first few copies of my new book, “Anomaly! – Collider Physics and the Quest for New Phenomena at Fermilab” arrived this morning from Singapore.

**Neutrino Mixing CP-violating
Phenomenology with only Two Free Parameters**

The flavor-geometric semi-empirical phenomenology appears a powerful source of
new basic ideas in the Standard Model Flavor Sector.

Most recent new idea is CP-nonconservation as cause of deviation from exact
Euclidean 3-space geometric symmetry of neutrino bimaximal approximation. It is
represented by cos-squared Dirac CP-phase (CPph) [1. ResearchGate/L, 9/16],

cos^2(2θ12) +cos^2(2θ23) + cos^2(2θ13) = 1 + cos^2(CPph), (1)

The Higgs boson signals found by the experiments were strong and coherent enough to convince physicists as well as the general public, but at the same time the few small inconsistencies unavoidably present in any data sample, driven by statistical fluctuations, were a stimulus for fantasy interpretations. Supersymmetry enthusiasts, in particular, saw the 125 GeV boson as the first found of a set of five. SUSY in fact requires the presence of at least five such states.

**Dirac CP-violating
phase from deviation of neutrino mixing from geometric bimaximal approximation**** **