Precision tests of third-generation four-quark operators: matching SMEFT to LEFT
We present the one- and two-loop matching between the Standard Model effective field theory (SMEFT) and the low-energy effective field theory (LEFT), focusing on the contributions of third-generation four-quark operators that impact electroweak precision measurements and flavour physics observables....
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| Main Authors: | , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
17-10-2024
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | We present the one- and two-loop matching between the Standard Model
effective field theory (SMEFT) and the low-energy effective field theory
(LEFT), focusing on the contributions of third-generation four-quark operators
that impact electroweak precision measurements and flavour physics observables.
Our results provide a crucial ingredient for a model-independent analysis of
constraints on beyond the Standard Model physics that primarily affects the
sector of third-generation four-quark operators. Concise analytic expressions
are provided for all considered precision observables, which should facilitate
their inclusion into global SMEFT analyses. |
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| Bibliography: | MPP-2024-198 |
| DOI: | 10.48550/arxiv.2410.13304 |