https://doi.org/10.1140/epjc/s10052-019-7026-7
Regular Article - Theoretical Physics
ISR effects with a full electroweak one-loop correction for a top pair-production at the ILC
1
The Graduate University for Advanced Studies (SOKENDAI), Hayama, Kanagawa, 240-0193, Japan
2
High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan
* e-mail: yoshimasa.kurihara@kek.jp
Received:
18
May
2018
Accepted:
6
April
2019
Published online:
14
June
2019
Precise predictions for an 
cross-section are presented in the energy region from 400 to 800 GeV. Cross-sections are estimated including the beam-polarization effects with full 
, and also with the effects of the initial-state photon emission. A radiator technique is used for the initial-state photon emission up to two-loop orders. In this investigation, a weak correction is defined as the full electroweak corrections without the initial-state photonic corrections. As a result, it is determined that the total cross-section of a top quark pair-production receives the weak corrections of 
over the trivial initial state corrections at a center of mass energy of 500 GeV. Among the initial state contributions, a contribution from two-loop diagrams gives less than 
correction over the one-loop ones at the center of mass energies of from 400 to 800 GeV. In addition, the effect of a running coupling constant is also discussed.
© The Author(s), 2019
