Theoretical underpinnings of CP-violation at the high-energy frontier

Bar-Shalom, Shaouly; Soni, Amarjit; Wudka, Jose

doi:10.1016/j.physletb.2024.139135

Physics Letters B

2025

DOI: 10.1016/j.physletb.2024.139135

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Theoretical underpinnings of CP-violation at the high-energy frontier

Shaouly Bar-Shalom,

Amarjit Soni,

Jose Wudka

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Top-quark Yukawa coupling with a dimension-6 operator

Zheng

2024

EPJ Web Conf.

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We extend the standard top-quark Yukawa coupling with a dimension-6 operator in order to accommodate a CP violating complex phase with manifest gauge invariance. This leads to a new ttHH contact interaction, along with many Goldstone boson couplings. We investigate the impact of the new interactions on a muon collider process µ−µ+ → νµῡµtt¯H compared with the standard dimension-4 top-Yukawa coupling. The unitarity bounds on the coefficient of the new physics operator is obtained from WL−W+L and HH initiated processes.

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Top-quark Yukawa coupling with a dimension-6 operator

Zheng

2024

EPJ Web Conf.

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show abstract

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Theoretical underpinnings of CP-violation at the high-energy frontier

Cited by 1 publication

References 128 publications

Top-quark Yukawa coupling with a dimension-6 operator

Top-quark Yukawa coupling with a dimension-6 operator

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