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A fully differential SMEFT analysis of the golden channel using the method of moments
The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel h → 4ℓ and constrain gauge-Higgs coupling modific...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/JHEP06(2021)031 http://cds.cern.ch/record/2748306 |
| _version_ | 1780968971622678528 |
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| author | Banerjee, Shankha Gupta, Rick S. Ochoa-Valeriano, Oscar Spannowsky, Michael Venturini, Elena |
| author_facet | Banerjee, Shankha Gupta, Rick S. Ochoa-Valeriano, Oscar Spannowsky, Michael Venturini, Elena |
| author_sort | Banerjee, Shankha |
| collection | CERN |
| description | The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel h → 4ℓ and constrain gauge-Higgs coupling modifications parametrised by dimension-six effective operators. We find that this analysis approach provides very good constraints and minimises degeneracies in the parameter space of the effective theory. By combining the decay h → 4ℓ with Higgs-associated production processes, Wh and Zh, we obtain the strongest reported bounds on anomalous gauge-Higgs couplings. |
| id | cern-2748306 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| record_format | invenio |
| spelling | cern-27483062021-11-12T22:27:17Zdoi:10.1007/JHEP06(2021)031http://cds.cern.ch/record/2748306engBanerjee, ShankhaGupta, Rick S.Ochoa-Valeriano, OscarSpannowsky, MichaelVenturini, ElenaA fully differential SMEFT analysis of the golden channel using the method of momentshep-phParticle Physics - PhenomenologyParticle Physics - ExperimentThe Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel h → 4ℓ and constrain gauge-Higgs coupling modifications parametrised by dimension-six effective operators. We find that this analysis approach provides very good constraints and minimises degeneracies in the parameter space of the effective theory. By combining the decay h → 4ℓ with Higgs-associated production processes, Wh and Zh, we obtain the strongest reported bounds on anomalous gauge-Higgs couplings.The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel $h \to 4\ell$ and constrain gauge-Higgs coupling modifications parametrised by dimension-six effective operators. We find that this analysis approach provides very good constraints and minimises degeneracies in the parameter space of the effective theory. By combining the decay $h \to 4\ell$ with Higgs-associated production processes, $Wh$ and $Zh$, we obtain the strongest reported bounds on anomalous gauge-Higgs couplings.arXiv:2012.11631CERN-TH-2020-220TUM-HEP-1309/20IPPP/20/68oai:cds.cern.ch:27483062020-12-21 |
| spellingShingle | hep-ph Particle Physics - Phenomenology Particle Physics - Experiment Banerjee, Shankha Gupta, Rick S. Ochoa-Valeriano, Oscar Spannowsky, Michael Venturini, Elena A fully differential SMEFT analysis of the golden channel using the method of moments |
| title | A fully differential SMEFT analysis of the golden channel using the method of moments |
| title_full | A fully differential SMEFT analysis of the golden channel using the method of moments |
| title_fullStr | A fully differential SMEFT analysis of the golden channel using the method of moments |
| title_full_unstemmed | A fully differential SMEFT analysis of the golden channel using the method of moments |
| title_short | A fully differential SMEFT analysis of the golden channel using the method of moments |
| title_sort | fully differential smeft analysis of the golden channel using the method of moments |
| topic | hep-ph Particle Physics - Phenomenology Particle Physics - Experiment |
| url | https://dx.doi.org/10.1007/JHEP06(2021)031 http://cds.cern.ch/record/2748306 |
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