Greljo, Admir; Palavrić, Ajdin; Thomsen, Anders Eller (2022). Adding Flavor to the SMEFT. Journal of High Energy Physics, 2022(10) Springer 10.1007/JHEP10(2022)005
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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.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Theoretical Physics 10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) |
UniBE Contributor: |
Greljo, Admir, Palavrić, Ajdin, Thomsen, Anders Eller |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Binia Marti |
Date Deposited: |
29 Mar 2023 07:47 |
Last Modified: |
29 Mar 2023 23:28 |
Publisher DOI: |
10.1007/JHEP10(2022)005 |
ArXiv ID: |
2203.09561 |
BORIS DOI: |
10.48350/180853 |
URI: |
https://boris.unibe.ch/id/eprint/180853 |
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