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\nWe study the process µ−µ+ → νµῡµ tt¯H with complex CP violating ttH couplings in the SMEFT with a dimension-6 operator. When the amplitudes are expressed in the Feynman-Diagram gauge, the dominance of the total cross section via the weak boson fusion diagrams is manifest. The high energy behaviour is dictated by the higher-dimensional vertices in the dimension-6 SMEFT operator. These properties are not manifest in the unitary gauge because of subtle cancellation among diagrams.\n

Publication Details

Journal
Springer Link (Chiba Institute of Technology)
Published
2024-12-18
DOI
https://doi.org/10.1051/epjconf/202431501028/pdf
Primary Topic
Particle physics theoretical and experimental studies
Type
article
Field-Weighted Citation Impact
0.00

Funders

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Springer Link (Chiba Institute of Technology)
Particle physics theoretical and experimental studies
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Abstract

\nWe study the process µ−µ+ → νµῡµ tt¯H with complex CP violating ttH couplings in the SMEFT with a dimension-6 operator. When the amplitudes are expressed in the Feynman-Diagram gauge, the dominance of the total cross section via the weak boson fusion diagrams is manifest. The high energy behaviour is dictated by the higher-dimensional vertices in the dimension-6 SMEFT operator. These properties are not manifest in the unitary gauge because of subtle cancellation among diagrams.\n

Springer Link (Chiba Institute of Technology)
Japan Society for the Promotion of Science
Affordable and clean energy
Openalex Percentile: Top 91%
Particle physics theoretical and experimental studies
DOIOpen Access PDFOpenAlex
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