Baryon Non-Invariant Couplings in Higgs Effective Field Theory

Abstract

The basis of leading operators which are not invariant under baryon number is constructed within the Higgs Effective Field Theory. This list contains 12 dimension six operators, which preserve the combination B-L, to be compared to only 6 operators for the Standard Model Effective Field Theory. The discussion on the independent flavour contractions is presented in detail for a generic number of fermion families adopting the Hilbert series technique.

7 pages; version accepted for publication in EPJC

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• Complete NNLO Operator Bases in Higgs Effective Field Theory
• Distinguishing A Higgs-Like Dilaton Scenario With A Complete Bosonic Effective Field Theory Basis
• Same-sign WW Scattering in the HEFT: Discoverability vs. EFT Validity
• Predictive Leptogenesis from Minimal Lepton Flavour Violation
• 23, 381, 6242, 103268, 1743183, ...: Hilbert series for CP-violating operators in SMEFT
• Searching for BSM Physics in Yukawa Couplings and Flavour Symmetries
• Probing Effective Field Theory Approach in the CP Violating Minimal Linear $\sigma$ Model
• Phenomenology of Dirac neutrino EFTs up to dimension six
• One Formula To Match Them All: The Bispinor Universal One-Loop Effective Action