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Aug 19 – 23, 2024
京都大学基礎物理学研究所
Asia/Tokyo timezone

W-boson pair production at lepton colliders in the Feynman-Diagram gauge

Aug 21, 2024, 3:45 PM
2h
湯川記念館2,3階 (基礎物理学研究所)

湯川記念館2,3階

基礎物理学研究所

ポスター発表 ポスター2

Speaker

Hiroyuki Furusato (Iwate university)

Description

We calculate helicity amplitudes for $e^-e^+\to W^-W^+$ analytically in the Feynman-diagram (FD) gauge. We show that, unlike in the unitary gauge, there is no energy growth of the individual Feynman amplitudes for the longitudinally polarized W bosons, and the contributions from the associated Goldstone bosons are manifest even without taking the high-energy limit. We also find that the physical distributions can be interpreted by the individual amplitudes in the FD gauge.

Primary author

Hiroyuki Furusato (Iwate university)

Presentation materials

There are no materials yet.