期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP01(2022)053
关键词
QCD Phenomenology
资金
- Swiss National Supercomputing Centre (CSCS) [UZH10]
- European Research Council (ERC) under the European Union [101019620]
- U.K. Science and Technology Facilities Council (STFC) [ST/T001011/1]
- Swiss National Science Foundation (SNF) [200020-175595]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [396021762-TRR 257]
- University of Zurich S3IT
This study investigates the impact of higher-order QCD corrections on the three-body decay of a Higgs boson. The corrections were found to have significant effects on the kinematic variables of the Higgs boson, but display distinctive features in the kinematics of its decay products.
The rare three-body decay of a Higgs boson to a lepton-antilepton pair and a photon is starting to become experimentally accessible at the LHC. We investigate how higher-order QCD corrections to the dominant gluon-fusion production process impact on the fiducial cross sections in this specific Higgs decay mode for electrons and muons. Corrections up to NNLO QCD are found to be sizeable. They are generally uniform in kinematical variables related to the Higgs boson, but display several distinctive features in the kinematics of its individual decay products.
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