Radiative Correction to e^+e^-→ γγ in Electroweak Theory : Particles and Fields

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概要

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• The lowest-order radiative corrections to e^+e^-→γγ in the energy regions of TORISTAN,SLC and LEP are calculated in the standard SU(2)×U(1) theory. The one loop virtual corrections due to heavy boson exchanges are presented analytically by performing the Feynman Parameter integrals. The contribution from hard photon emission is also included under typical experimental conditions; the acollinearity angle between two photons is less the ζ_c=10゜and the energies are greater than E_lh=e/3. the weak corrections to the lowest order cross section are less than one percent for almost all energies and angles considered but, around the threshold of W pair production, the corrections are dominated by the triangle diagram and reach 1.35% at the scattering angle θ_1=90゜.

• 理論物理学刊行会の論文
• 1987-01-25

著者

• Shimizu Y

  Department Of Physics Nagoya University

• FUJIMOTO Junpei

  High Energy Accelerator Research Organization

• SHIMIZU Yoshimitsu

  National Laboratory for High Energy Physics (KEK)

• FUJIMOTO Junpei

  Department of Physics, Nagoya University

• IGARASHI Masataka

  Department of Physics, Tokai University

• SHIMIZU Yoshimitsu

  Department of Physics, University of Tokyo

• Shimizu Yoshimitsu

  National Laboratory For High Energy Physics

• Igarashi M

  Tokai Univ. Hiratsuka

• Igarashi Masataka

  Department Of Phvscis Tokai University

• Fujimoto J

  High Energy Accelerator Research Organization

• Fujimoto Junpei

  Department Of Physics Nagoya University

• SHIMIZU Yoshimitsu

  National Laboratory for High Energy Physics(KEK)

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