Journal
PHYSICAL REVIEW D
Volume 87, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.87.055019
Keywords
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Funding
- European Union FP7 ITN INVISIBLES [PITN-GA2011-289442]
- CiCYT [FPA2009-09017]
- CAM [HEPHACOS P-ESP-00346]
- European Union FP7 ITN UNILHC (Marie Curie Actions) [PITN-GA-2009-237920]
- MICINN [BES-2010-037869]
- Juan de la Cierva program [JCI-2011-09244]
- ERC Advance Grant FLAVOUR'' [267104]
- German Excellence Initiative
- Italian Ministero dell'Universita e della Ricerca Scientifica through the COFIN program
- INFN
- Technische Universitat Munchen-Institute for Advanced Study
- [MRTN-CT-2006-035505]
- [PITN-GA-2009-237920 (UNILHC)]
- European Research Council (ERC) [267104] Funding Source: European Research Council (ERC)
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The Higgs-fermion couplings are sensitive probes of possible new physics behind a stable light Higgs particle. It is then essential to identify the flavor pattern of those interactions. We consider the case in which a strong dynamics lies behind a light Higgs and explore the implications within the minimal flavor violation ansatz. The dominant effects on flavor-changing Higgs-fermion couplings stem in this context from operators with mass dimension <= 5, and we analyze all relevant chiral operators up to that order, including loop corrections induced by four-dimensional ones. Bounds on the operator coefficients are derived from a plethora of low-energy flavor transitions, providing a guideline on which flavor-changing Higgs interactions may be open to experimental scrutiny. In particular, the coefficient of a genuinely CP-odd operator is only softly constrained and therefore its impact is potentially interesting. DOI: 10.1103/PhysRevD.87.055019
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