Box diagram in Yukawa theory

被引：12
作者：
Bakker, Bernard L. G.
Boomsma, Jorn K.
Ji, Chueng-Ryong
机构：
[1] Free Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands
[2] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA
来源：
PHYSICAL REVIEW D | 2007年 / 75卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.75.065010
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a light-front calculation of the box diagram in Yukawa theory. The covariant box diagram is finite for the case of spin-1/2 constituents exchanging spin-0 particles. In light-front dynamics, however, individual time-ordered diagrams are divergent. We analyze the corresponding light-front singularities and show the equivalence between the light-front and covariant results by taming the singularities.
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页数：17
相关论文
共 22 条
  • [1] Restoring the equivalence between the light-front and manifestly covariant formalisms
    Bakker, BLG
    DeWitt, MA
    Ji, CR
    Mishchenko, Y
    [J]. PHYSICAL REVIEW D, 2005, 72 (07):
  • [2] Manifestations of the vector anomaly in covariant and light-front calculations of the anomalous magnetic moment of W± bosons -: art. no. 053005
    Bakker, BLG
    Ji, CR
    [J]. PHYSICAL REVIEW D, 2005, 71 (05): : 1 - 20
  • [3] Frame dependence of spin-one angular conditions in light front dynamics
    Bakker, BLG
    Ji, CR
    [J]. PHYSICAL REVIEW D, 2002, 65 (07): : 730021 - 7300213
  • [4] Brodsky S. J., 1998, Physics Reports, V301, P299, DOI 10.1016/S0370-1573(97)00089-6
  • [5] Two-boson truncation of Pauli-Villars-regulated Yukawa theory
    Brodsky, SJ
    Hiller, JR
    McCartor, G
    [J]. ANNALS OF PHYSICS, 2006, 321 (05) : 1240 - 1264
  • [6] EVOLUTION EQUATION AND RELATIVISTIC BOUND-STATE WAVE-FUNCTIONS FOR SCALAR-FIELD MODELS IN 4 AND 6 DIMENSIONS
    BRODSKY, SJ
    JI, CR
    SAWICKI, M
    [J]. PHYSICAL REVIEW D, 1985, 32 (06): : 1530 - 1538
  • [7] FORMS OF RELATIVISTIC DYNAMICS
    DIRAC, PAM
    [J]. REVIEWS OF MODERN PHYSICS, 1949, 21 (03) : 392 - 399
  • [8] Eden R. J., 1966, ANAL S MATRIX
  • [9] Erkelenz K., 1974, Physics Reports. Physics Letters Section C, V13c, P191, DOI 10.1016/0370-1573(74)90008-8
  • [10] RELATIVISTIC BOUND-STATE PROBLEM IN THE LIGHT-FRONT YUKAWA MODEL
    GLAZEK, S
    HARINDRANATH, A
    PINSKY, S
    SHIGEMITSU, J
    WILSON, K
    [J]. PHYSICAL REVIEW D, 1993, 47 (04): : 1599 - 1619
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