A supersimple analysis of e^-e⁺→ W^- W⁺ at high energy

2013/09/12 by G. J. Gounaris, Gounaris, G. J., F. M. Renard +1
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.1309.3177

24 pages, 22 figures. Somewhat extended version to appear in Phys. Rev. D

openalex publication_date 2013/09/12 · arxiv created 2013/11/21 · arxiv updated 2013/11/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Studying e^-e⁺→ W^- W⁺ at the 1loop electroweak (EW) order, we derive very accurate and simple expressions for the four Helicity Conserving (HC) amplitudes, which dominate this process at high energies. The calculations are done in both, the SM and MSSM frameworks. Such expressions, called supersimple (sim), nicely emphasize the dynamical contents of each framework. Numerical illustrations are presented, which show the accuracy of this description, and how it can be used for identifying possible additional new physics contributions; like e.g. Anomalous Gauge Couplings (AGC) or a new Z' vector boson exchange. The procedure is useful even if only SM is visible at the future Linear Collider energies.

Related

• Supersimplicity: a remarkable high energy SUSY property
• Description of e^-e⁺→γγ, Z γ, ZZ in SM and MSSM
• One-loop contributions of the super-partner particles to e^-e⁺ → W^-W⁺ in the MSSM
• The process e⁺e^-→ b bW⁺W^- at the Next Linear Collider in the Minimal Supersymmetric Standard Model
• A New Method for Computing Helicity Amplitudes