Greljo, Admir and Palavrić, Ajdin and Thomsen, Anders Eller. (2022) Adding Flavor to the SMEFT. Journal of High Energy Physics, 2022 (10). 005.
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Official URL: https://edoc.unibas.ch/95392/
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Abstract
We study the flavor structure of the lepton and baryon number-conserving dimension-6 operators in the Standard Model effective field theory (SMEFT). Building on the work of [1], we define several well-motivated flavor symmetries and symmetry-breaking patterns that serve as competing hypotheses about the ultraviolet (UV) dynamics beyond the SM, not far above the TeV scale. In particular, we consider four different structures in the quark sector and seven in the charged lepton sector. The set of flavor-breaking spurions is (almost) always taken to be the minimal one needed to reproduce the observed charged fermion masses and mixings. For each case, we explicitly construct and count the operators to the first few orders in the spurion expansion, providing ready-for-use setups for phenomenological studies and global fits. We provide a Mathematica package SMEFTflavor (https://github.com/aethomsen/SMEFTflavor) to facilitate similar analyses for flavor symmetries not covered in this work.
Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Teilchenphysik und Kosmologie (Greljo) |
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UniBasel Contributors: | Greljo, Admir |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | Springer |
ISSN: | 1126-6708 |
e-ISSN: | 1029-8479 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
Language: | English |
Identification Number: | |
edoc DOI: | |
Last Modified: | 16 Aug 2023 08:37 |
Deposited On: | 16 Aug 2023 08:37 |
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