that goes something like this: “The pion has spin zero, and so the lepton and the antineutrino must emerge with opposite spin, and therefore the same helicity. An antineutrino is always right-handed, and so the lepton must be as well. But only the

diagonalizing the bilinear form-B. Page 3 of 3. anon, Geometry and Quantum Field Theory, 2. The Steepest Descent and Stationary Phase Formulas.pdf. anon ...

Connes, Kreimer, Renormalization in Quantum Field The ... lem I, The Hopf Algebra Structure of Graphs (35p).pdf. Connes, Kreimer, Renormalization in ...