Constraining Higgs boson effective couplings at electron-positron colliders
Abstract
We probe the dimension-six operators contributing to Higgs production in association with a boson at the future high-luminosity electron-positron colliders. Potential constraints on dimension-six operators in the Higgs sector are determined by performing a shape analysis on the differential angular distribution of the Higgs and boson decay products. The analysis is performed at the center-of-mass energies of 350 and 500 GeV including a realistic detector simulation and the main sources of background processes. The 68\% and 95\% confidence level upper limits are obtained on the contributing anomalous couplings considering only the decay of the Higgs boson into a pair of -quarks and leptonic boson decay. Our results show that angular observables provide a great sensitivity to the anomalous couplings, in particular, at the high-luminosity regime.
Cite
@article{arxiv.1702.00951,
title = {Constraining Higgs boson effective couplings at electron-positron colliders},
author = {Hamzeh Khanpour and Mojtaba Mohammadi Najafabadi},
journal= {arXiv preprint arXiv:1702.00951},
year = {2017}
}
Comments
13 pages, 6 figures and 3 Tables