1. Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions
- Author
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Vincenzo Cirigliano, Wouter Dekens, J. de Vries, Yang-Ting Chien, Emanuele Mereghetti, and High-Energy Frontier
- Subjects
Quark ,Particle physics ,Nuclear and High Energy Physics ,Higgs Physics ,Nuclear Theory ,STANDARD MODEL ,FOS: Physical sciences ,01 natural sciences ,Nuclear Theory (nucl-th) ,ELECTRIC-DIPOLE MOMENT ,High Energy Physics - Phenomenology (hep-ph) ,High Energy Physics - Lattice ,0103 physical sciences ,Effective field theory ,Renormalization Group ,Physics::Atomic Physics ,Nuclear Experiment (nucl-ex) ,EFFECTIVE COUPLINGS ,010306 general physics ,Nuclear Experiment ,Physics ,BOSON PRODUCTION ,Large Hadron Collider ,010308 nuclear & particles physics ,High Energy Physics - Lattice (hep-lat) ,High Energy Physics::Phenomenology ,TIME-REVERSAL VIOLATION ,Gluon ,EFFECTIVE-FIELD THEORY ,Electric dipole moment ,High Energy Physics - Phenomenology ,CP violation ,MINIMAL FLAVOR VIOLATION ,HADRON-HADRON COLLISIONS ,PARTON DISTRIBUTIONS ,Quark–gluon plasma ,Beyond Standard Model ,Higgs boson ,High Energy Physics::Experiment ,CROSS-SECTION - Abstract
We investigate direct and indirect constraints on the complete set of anomalous CP-violating Higgs couplings to quarks and gluons originating from dimension-6 operators, by studying their signatures at the LHC and in electric dipole moments (EDMs). We show that existing uncertainties in hadronic and nuclear matrix elements have a significant impact on the interpretation of EDM experiments, and we quantify the improvements needed to fully exploit the power of EDM searches. Currently, the best bounds on the anomalous CP-violating Higgs interactions come from a combination of EDM measurements and the data from LHC Run 1. We argue that Higgs production cross section and branching ratios measurements at the LHC Run 2 will not improve the constraints significantly. On the other hand, the bounds on the couplings scale roughly linearly with EDM limits, so that future theoretical and experimental EDM developments can have a major impact in pinning down interactions of the Higgs., Included analysis of Higgs decay processes. References added
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