| Article | |
| Report number | arXiv:2012.11631 ; CERN-TH-2020-220 ; TUM-HEP-1309/20 ; IPPP/20/68 |
| Title | A fully differential SMEFT analysis of the golden channel using the method of moments |
| Author(s) | Banerjee, Shankha (CERN) ; Gupta, Rick S. (Durham U., IPPP) ; Ochoa-Valeriano, Oscar (Durham U., IPPP) ; Spannowsky, Michael (Durham U., IPPP) ; Venturini, Elena (Munich, Tech. U.) |
| Publication | 2021-06-04 |
| Imprint | 2020-12-21 |
| Number of pages | 32 |
| Note | v2: 32 pages, 6 figures, 2 tables, minor changes: references added, some numbers updated, conclusions unchanged; version accepted for publication in JHEP |
| In: | JHEP 2106 (2021) 031 |
| DOI | 10.1007/JHEP06(2021)031 |
| Subject category | hep-ph ; Particle Physics - Phenomenology ; Particle Physics - Experiment |
| Abstract | 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. |
| Copyright/License | publication: © 2021-2024 The Authors (License: CC-BY-4.0), sponsored by SCOAP³ preprint: (License: CC-BY-4.0) |
Corresponding record in: Inspire
Record created 2020-12-24, last modified 2024-08-07