Probing the Higgs self coupling via single Higgs production at the LHC
By Giuseppe Degrassi, Pier Paolo Giardino, Fabio Maltoni, D. Pagani. 2016
165 citations recorded by the source corpus.
A bstractWe propose a method to determine the trilinear Higgs self coupling that is alternative to the direct measurement of Higgs pair production total cross sections and differential distributions. The method relies on the effects that electroweak loops featuring an anomalous trilinear coupling would imprint on single Higgs production at the LHC. We first calculate these contributions to all the phenomenologically relevant Higgs production (ggF, VBF, WH, ZH, tt¯H$$ t\overline{t}H $$) and decay γγ,WW∗/ZZ∗→4f,bb¯,ττ$$ \left(\gamma \gamma, W{W}^{\ast }/Z{Z}^{\ast}\to\ 4f,b\overline{b},\tau \tau \right) $$ modes at the LHC and then estimate the sensitivity to the trilinear coupling via a one-parameter fit to the single Higgs measurements at the LHC 8 TeV. We find that the bounds on the self coupling are already competitive with those from Higgs pair production and will be further improved in the current and next LHC runs.
Subfields: Artificial Intelligence, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/6a41f2ab125807db65e068a00c4f48af72842b98
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In Artificial Intelligence
- Cms Collaboration
- Atlas Collaboration
- Gudrun Heinrich
- John Ellis
- T. You
- Veronica Sanz
- G. Panico
- Stefan Prestel
In Nuclear and High Energy Physics
- Cms Collaboration
- Atlas Collaboration
- Gudrun Heinrich
- Fabio Maltoni
- Valentin Hirschi
- Ansgar Denner
- R. Frederix
- Stefan Dittmaier
Citations in the corpus
- Higgs Boson studies at future particle colliders (2019, background): “Modified Higgs self-interactions can also affect, at higher orders, the single Higgs processes [67–69] and even the electroweak precision observables [70–72].”
- Higgs Physics at the HL-LHC and HE-LHC (2019, methodology): “Furthermore, in the case of WH , ZH and ttH production the loop corrections contributing to C 1 feature a Sommerfeld enhancement, which results in an increased sensitivity to anomalous trilinear Higgs self interactions at low energies [366, 367, 370].”