We study the off-shell Higgs data in the process pp→h(∗)→Z(∗)Z(∗)→4ℓ, to constrain deviations of the Higgs couplings. We point out that this channel can be used to resolve the long- and short-distance contributions to Higgs production by gluon fusion and can thus be complementary to pp→htt¯ in measuring the top Yukawa coupling. Our analysis, performed in the context of Effective Field Theory, shows that current data do not allow one to draw any model-independent conclusions. We study the prospects at future hadron colliders, including the high-luminosity LHC and accelerators with higher-energy, up to 100 TeV. The available QCD calculations and the theoretical uncertainties affecting our analysis are also briefly discussed.
Taming the off-shell Higgs boson / Azatov, Aleksandr; Grojean, C.; Paul, A.; Salvioni, E.. - In: JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS. - ISSN 1063-7761. - 120:3(2015), pp. 354-368.
Titolo: | Taming the off-shell Higgs boson |
Autori: | Azatov, Aleksandr; Grojean, C.; Paul, A.; Salvioni, E. |
Rivista: | |
Data di pubblicazione: | 2015 |
Volume: | 120 |
Fascicolo: | 3 |
Pagina iniziale: | 354 |
Pagina finale: | 368 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1134/S1063776115030140 |
URL: | https://link.springer.com/article/10.1134%2FS1063776115030140 https://arxiv.org/abs/1406.6338v3 |
Appare nelle tipologie: | 1.1 Journal article |
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