New Physics in Double Higgs Production at Future $e^+ e^-$ Colliders
Abstract
We study the effects of new physics in double Higgs production at future colliders. In the Standard Model the chiral limit () plays an important role for this process, being responsible for the smallness of the tree-level diagrams with respect to the 1-loop contributions. In our work, we consider the possibility of an enhancement due to the contribution of Standard Model dimension-six effective operators. We show that there are only two relevant operators for this process that are not yet (strongly) constrained by other data. We perform a sensitivity study on the operator coefficients for several benchmark values of energy and integrated luminosity related to the proposed linear colliders such as CLIC, ILC and FCC-ee and we derive expected 95% CL limits for each benchmark scenario.
Keywords
Cite
@article{arxiv.1901.05979,
title = {New Physics in Double Higgs Production at Future $e^+ e^-$ Colliders},
author = {Andres Vasquez and Celine Degrande and Alberto Tonero and Rogerio Rosenfeld},
journal= {arXiv preprint arXiv:1901.05979},
year = {2019}
}
Comments
17 pages, 8 figures, 1 table. New references added