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Prog. Theor. Phys. Vol. 93 No. 6 (1995) pp. 1105-1112
Path-Ordered Phase Factors in Scalar Quantum Electrodynamics
B.M. Pimentel and
J.L. Tomazelli
Instituto de Física Teórica,
Universidade Estadual Paulista,
Rua Pamplona, 145,
01405-900-São Paulo, SP
(Received February 3, 1995)
Abstract:
Starting from linear equations for the complex scalar field, the two- and three-point Green's functions are obtained in the infrared approximation. We show that the infrared singularity factorizes in the vertex function as in spinor QED, reproducing in a simple and straightforward way the result of lengthy perturbative calculations.
URL :
http://ptp.ipap.jp/link?PTP/93/1105/
DOI : 10.1143/PTP.93.1105
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