@misc{10481/94334,
year = {2024},
month = {3},
url = {https://hdl.handle.net/10481/94334},
abstract = {The ATLAS and CMS collaborations at the LHC have recently announced evidence for the rare Higgs boson decay into a Z boson and a photon. We analyze the interference between the process gg→H→Zγ induced by loops of heavy particles, which is by far the dominant contribution to the signal, and the continuum gg→Zγ QCD background process mediated by light quark loops. This interference modifies the event yield, the resonance line-shape and the apparent mass of the Higgs boson. We calculate the radiative corrections to this interference beyond the leading-order approximation in perturbative QCD and find that, while differing numerically from the corresponding effects on the more studied gg→γγ signal, they are generally rather small. As such, they do not impact significantly the interpretation of the present measurements of the H→Zγ decay mode.},
organization = {Junta de Andalucía
through the Talentia Senior program and the grant PID2021-
128396NB-I00},
organization = {STFC Grant
ST/X000753/1},
organization = {Excellence Cluster
ORIGINS funded by the Deutsche Forschungsgemeinschaft (DFG,
German Research Foundation) under Germany’s Excellence Strategy –
EXC-2094-390783311},
organization = {European Research Council (ERC)
under the European Union research and innovation programme grant
agreements 949279 (ERC Starting Grant HighPHun) and 804394 (ERC
Starting Grant HIPQCD)},
publisher = {Elsevier},
title = {Interference effects in gg → H → Zγ beyond leading order},
doi = {10.1016/j.physletb.2024.138596},
author = {Buccioni, Federico and Devoto, Federica and Djouadi, Abdelhak and Ellis, John and Quevillon, Jérémie and Tancredi, Lorenzo},
}