TY - JOUR
T1 - Covariant two-body equations for scalar and Dirac particles
AU - Wallace, S. J.
AU - Mandelzweig, V. B.
PY - 1989/10/30
Y1 - 1989/10/30
N2 - Covariant equations for two scalar, two spinor and scalar plus spinor particles are derived from quantum electrodynamics by consideration of crossed and uncrossed graphs. The equations are symmetric in particle labels, and are invariant under charge conjugation, time reversal and parity transformations. They possess correct eikonal and infinite mass limits, even when the quasipotential, determined from QED, is truncated to lowest order. The negative-energy solutions have natural interpretations as positive-energy antiparticle solutions, z-graphs of the time-ordered perturbation theory are correctly incorporated with energy denominators, that describe propagation of virtual particle-antiparticle pair states.
AB - Covariant equations for two scalar, two spinor and scalar plus spinor particles are derived from quantum electrodynamics by consideration of crossed and uncrossed graphs. The equations are symmetric in particle labels, and are invariant under charge conjugation, time reversal and parity transformations. They possess correct eikonal and infinite mass limits, even when the quasipotential, determined from QED, is truncated to lowest order. The negative-energy solutions have natural interpretations as positive-energy antiparticle solutions, z-graphs of the time-ordered perturbation theory are correctly incorporated with energy denominators, that describe propagation of virtual particle-antiparticle pair states.
UR - http://www.scopus.com/inward/record.url?scp=34547800529&partnerID=8YFLogxK
U2 - 10.1016/0375-9474(89)90435-1
DO - 10.1016/0375-9474(89)90435-1
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:34547800529
SN - 0375-9474
VL - 503
SP - 673
EP - 693
JO - Nuclear Physics A
JF - Nuclear Physics A
IS - 3-4
ER -