Higgs production in association with a Z boson at TeV-scale lepton colliders
Abstract
We study kinematical properties of the process l − l + → ν ν ¯ Z h at future TeV-scale lepton colliders. We classify the Feynman amplitudes into three main topological categories: vector-boson scattering, l − W + scattering, and W − l + scattering contributions, and analyze the interference patterns among these amplitudes in both the recently proposed Feynman-diagram (FD) gauge and the conventional unitary gauge. We demonstrate that the rapidity distributions of the Z boson closely resemble those in l − l + → ν ν ¯ Z , while the Higgs-boson rapidity distribution is significantly different: Higgs bosons are produced nearly isotropically, whereas longitudinally polarized Z bosons are enhanced in the forward and backward regions. We find that this difference is traced to the topology-dependent structure of the FD-gauge amplitudes. We also demonstrate that suitable kinematical cuts can isolate specific subamplitudes, enabling partial FD-gauge amplitudes to effectively describe physical distributions.
Related
- Search for Higgs boson production in association with another Higgs or an exotic scalar boson in the bb̅W+W− single lepton final state at √s=13 TeV with the ATLAS experiment
- Multiboson production at multi-TeV lepton colliders as complementary probes to rare Higgs decays
- Measurements of the Higgs boson production, fiducial and differential cross-sections in the four lepton decay channel using 164 fb−1 of data collected at √s = 13.6 TeV with the ATLAS detector
- Study of enhancing the signal-background separation for the Higgs boson production in association with a single top-quark in pp collisions at the LHC
- Using Higgs Boson Production in Association with Three Jets via Gluon Fusion at the LHC to Investigate the CP Properties of the Higgs Boson
BibTeX
@article{furusato2026higgs,
title = {{Higgs production in association with a Z boson at TeV-scale lepton colliders}},
author = {Hiroyuki Furusato and Satsuki Hosoya and Kentarou Mawatari and Shouta Suzuki},
journal = {Physics Letters B},
year = {2026},
month = oct,
doi = {10.1016/j.physletb.2026.141084},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0370269326009342},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Higgs production in association with a Z boson at TeV-scale lepton colliders
AU - Hiroyuki Furusato
AU - Satsuki Hosoya
AU - Kentarou Mawatari
AU - Shouta Suzuki
PY - 2026
DA - 2026/10/30
JO - Physics Letters B
DO - 10.1016/j.physletb.2026.141084
UR - https://linkinghub.elsevier.com/retrieve/pii/S0370269326009342
AB - We study kinematical properties of the process l − l + → ν ν ¯ Z h at future TeV-scale lepton colliders. We classify the Feynman amplitudes into three main topological categories: vector-boson scattering, l − W + scattering, and W − l + scattering contributions, and analyze the interference patterns among these amplitudes in both the recently proposed Feynman-diagram (FD) gauge and the conventional unitary gauge. We demonstrate that the rapidity distributions of the Z boson closely resemble those in l − l + → ν ν ¯ Z , while the Higgs-boson rapidity distribution is significantly different: Higgs bosons are produced nearly isotropically, whereas longitudinally polarized Z bosons are enhanced in the forward and backward regions. We find that this difference is traced to the topology-dependent structure of the FD-gauge amplitudes. We also demonstrate that suitable kinematical cuts can isolate specific subamplitudes, enabling partial FD-gauge amplitudes to effectively describe physical distributions.
SN - 0370-2693
SN - 1873-2445
ER -