# Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions

## Abstract

Here 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 also 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. But, 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.

- Authors:

- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
- Univ. of Groningen (The Netherlands). Van Swinderen Inst.
- Julich Research Centre (Germany). Inst. for Advanced Simulation

- Publication Date:

- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

- Sponsoring Org.:
- USDOE

- OSTI Identifier:
- 1334139

- Report Number(s):
- LA-UR-15-27548

Journal ID: ISSN 1029-8479

- Grant/Contract Number:
- AC52-06NA25396

- Resource Type:
- Accepted Manuscript

- Journal Name:
- Journal of High Energy Physics (Online)

- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 2; Journal ID: ISSN 1029-8479

- Publisher:
- Springer Berlin

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Higgs Physics; beyond standard model; CP violation; renormalization group

### Citation Formats

```
Chien, Y. T., Cirigliano, V., Dekens, W., de Vries, J., and Mereghetti, E. Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions. United States: N. p., 2016.
Web. doi:10.1007/JHEP02(2016)011.
```

```
Chien, Y. T., Cirigliano, V., Dekens, W., de Vries, J., & Mereghetti, E. Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions. United States. doi:10.1007/JHEP02(2016)011.
```

```
Chien, Y. T., Cirigliano, V., Dekens, W., de Vries, J., and Mereghetti, E. Mon .
"Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions". United States. doi:10.1007/JHEP02(2016)011. https://www.osti.gov/servlets/purl/1334139.
```

```
@article{osti_1334139,
```

title = {Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions},

author = {Chien, Y. T. and Cirigliano, V. and Dekens, W. and de Vries, J. and Mereghetti, E.},

abstractNote = {Here 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 also 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. But, 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.},

doi = {10.1007/JHEP02(2016)011},

journal = {Journal of High Energy Physics (Online)},

number = 2,

volume = 2016,

place = {United States},

year = {2016},

month = {2}

}

*Citation information provided by*

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