	Electron	Antiparticle a⁺	Dirac’s positron
charge q	‒e	+e	+e
group velocity v_g =	>0	>0	singular
phase velocity v_p =	> 0	>0	singular
mass, m₀ or relativistic m	m > 0	m' < 0 *	>0
kinetic energy	>0	<0	>0
charge/mass	<0	<0	>0
angular frequency w	>0	<0	singular
wave vector k	k×r > 0	k×r > 0	k×r > 0
momentum, p	p = h′k = mv_g > 0	p = h′k = m′v_g < 0	Forwards = backwards**
energy, h′w		w < 0	w₀ = −m₀!
	<0	<0	>0
electric acceleration
magnetic acceleration***
conserved quantities	->	, k_i ***	w_i, k_i
"in pair annihilaton	->	m_i, ,	w_i,e_i
and creation
e-a acceleration	-Coulomb/m****	-Coulomb/\|m'\|	-Coulomb/m