期刊
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
卷 120, 期 3, 页码 354-368出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1063776115030140
关键词
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资金
- European Research Council under the European Union [279972]
- US Department of Energy [DE-FG02-91ER40674]
- European Commission through the ERC Advanced Grant [226371 MassTeV]
- European Commission through Marie Curie Career Integration Grant [631962]
- Spanish Ministry MICINN [FPA2010-17747]
- Generalitat de Catalunya [2014-SGR-1450]
- ICREA Funding Source: Custom
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 in measuring the top Yukawa coupling. Our analysis, performed in the context of effective field theory, shows that current data do not allow drawing 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.
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