Khanpour, Hamzeh and Najafabadi, Mojtaba Mohammadi (2017) Constraining Higgs boson effective couplings at electron-positron colliders. Physical Review D, 95 (055026). ISSN 2470-0029

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Abstract

We probe the dimension-six operators contributing to Higgs production in association with a Z 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 Z 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 b-quarks and leptonic Z boson decay. Our results show that angular observables provide a great sensitivity to anomalous couplings, in particular, at the high-luminosity regime.

Item Type:	Article
Additional Information:	Cite as: Constraining Higgs boson effective couplings at electron-positron colliders, Hamzeh Khanpour, Mojtaba Mohammadi Najafabadi, DOI: 10.1103/PhysRevD.95.055026, Phys.Rev.D 95 (2017) 5, 055026
Keywords:	Higgs boson effective couplings; electron-positron colliders;
Academic Unit:	Faculty of Science and Engineering > Theoretical Physics
Item ID:	14764
Identification Number:	https://doi.org/10.1103/PhysRevD.95.055026
Depositing User:	Hamzeh Khanpour
Date Deposited:	08 Sep 2021 13:46
Journal or Publication Title:	Physical Review D
Publisher:	American Physical Society
Refereed:	No
Funders:	School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), University of Science and Technology of Mazandaran
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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