The QCD Ground State Chiral Tetrahedron Symmetry

: We propose that the exotic meson tetraquark 𝑢𝑑̃𝑑𝑢 ̃ introduced in previous papers, may be a pseudo-Goldstone boson having a tetrahedron geometry. The transition from the neutral pion superposition of two free mesons, 𝑑𝑑 ̃ and 𝑢𝑢 ̃, to the tetrahedron geometry with optional two chiral states may be a symmetry breaking of the QCD ground state. The 𝑢𝑑̃𝑑𝑢 ̃ tetrahedron mass may be calculated by measuring the β decay rate variability as proposed in a previous paper. We assume that electrons and positrons are composite particle exotic tetraquarks, 𝑑𝑢̃𝑑𝑑̃ for the electrons and 𝑢𝑑̃𝑑𝑑̃ for the positrons confined by the strong force. We propose that the QCD tetrahedrons play a central role in electron pairing mechanism in both chemical bond forming and superconductor Cooper pairs. We propose a hypothesis where the QCD ground state tetrahedrons play a central role in low energy physics where quark exchange reactions between particles and the QCD tetrahedrons via gluon junctions transfer QED, QCD and gravity. The QCD ground state 𝑢𝑑 ̃ 𝑑𝑢 ̃ tetrahedrons hypothesis provides two chiral states and a mass gap may be created by a ground state QCD tetrahedrons Bose-Einstein condensate.