Wave packet with special relativity demonstrating quantum rules, Schrodinger´s equation and the propagator integral

Newly interpreted quantum rules are used first to extend the conservation of momenta four-vectors to an equivalent conservation of central wavenumber four-vector law of the N wave packets of the corresponding N particles. Next, this central wavenumber conservation law is used with the Compton effect for N=2 to show that alpha equals Planck´s constant h(cross). This result demonstrates also that invariant b equals k_c, the Compton wavenumber, given by k_c=2 pi / lambda _c with lambda _c=h(m₀c) being the Compton wavelength.