TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.8.016
TI  - Longitudinal Z-boson polarization and the Higgs boson production cross-section
PY  - 2022/07/11
UR  - https://scipost.org/SciPostPhysProc.8.016
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 8
SP  - 016
A1  - Amoroso, Simone
AB  - Lepton pairs are produced copiously in high-energy hadron collisions via electroweak gauge boson exchange, and are one of the most precisely measured final states in proton- proton collisions at the Large Hadron Collider (LHC). We propose that measurements of lepton angular distributions can be used to improve the accuracy of theoretical predic- tions for Higgs boson production cross sections at the LHC. To this end, we exploit the sensitivity of the lepton angular coefficient associated with the longitudinal Z-boson polarization to the parton density function (PDF) for gluons resolved from the incoming protons, in order to constrain the Higgs boson cross section from gluon fusion processes. By a detailed numerical analysis using the open-source platform xFitter, we find that high-statistics determinations of the longitudinally polarized angular coefficient at the LHC Run III and high-luminosity HL-LHC improve the PDF systematics of the Higgs boson cross section predictions by 50 % over a broad range of Higgs boson rapidities.
ER  -

@Article{10.21468/SciPostPhysProc.8.016,
	title={{Longitudinal Z-boson polarization and the Higgs boson production cross-section}},
	author={Simone Amoroso},
	journal={SciPost Phys. Proc.},
	pages={016},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.8.016},
	url={https://scipost.org/10.21468/SciPostPhysProc.8.016},
}