Majorana Definition and 55 Threads

The electromagnetic current vanishes identically in the Majorana case: http://users.jyu.fi/~hetahein/tiede/virta.pdf" . In the case someone cannot open the pdf, here is the formula: \overline{\psi}\gamma^{\mu}\psi = \overline{\psi^{C}}\gamma^{\mu}\psi^{C} =...

A question concerning Feynman rules for Dirac vs Majorana neutrinos. Take e.g. the scattering process: electron + positron -> electron neutrino + electron antineutrino. Following the electroweak Feynman rules we can calculate an expression for the unpolarized differential cross section...

can someone please explain this realistic wave equation i'm new with spinors :)

For my diploma thesis I must provide a calculation that reproduces the results given on page 46 of the paper hep-ph/0309342 . For those who do not want to look it up, I briefly explain what it is about: It concerns the two-body scattering processes (1) N + V => L + H, (2) N + L => V + H, (3) N...

People say that if neutrinos are Majorana particles, they are "identical to their anti particle". But anti neutrinos are obviously different from neutrinos. They produce anti-leptons rather than leptons in the scattering process. So the only difference I can image is the helicity, however that...