Work

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

Year: 2024

Type: article

Abstract: We calculate helicity amplitudes for e − e + → 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 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. Published by the American Physical Society 2024

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.110.053005

Authors: Hiroyuki Furusato, Kentarou Mawatari, Yutaro Suzuki, Ya-Juan Zheng

Institution: Iwate University

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: Japan Society for the Promotion of Science

Awards: Study of top quark physics based on the effective field theory as a window to new physics beyond the standard model, New physics beyond the Standard Model explored through single-top quark production, CP violation in the top Higgs sector, G8401296521, Research and development of simulation tools for exploring new physics at linear colliders