Applying EFT to Higgs pair production in universal extra dimensions

Lisa Edelhäuser (Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen, Sommerfeldstr. 16, Aachen, 52074, Germany) ; Alexander Knochel (Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen, Sommerfeldstr. 16, Aachen, 52074, Germany) ; Thomas Steeger (Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen, Sommerfeldstr. 16, Aachen, 52074, Germany)

We investigate single Higgs and Higgs pair production at the LHC in models of Universal Extra Dimensions. After calculating the relevant cross sections, we use the UED model as a testing ground for the Effective Field Theory approach to physics beyond the Standard Model. We show how the UED contributions to Higgs production can be matched to a dimension-6 operator. We then discuss the range of validity of this approach, in particular for Higgs pair production, and determine the sensitivity to the number of KK modes in the loop.

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Published on:
09 November 2015
Publisher:
Springer/SISSA
Published in:
Journal of High Energy Physics (2015)

DOI:
https://doi.org/10.1007/JHEP11(2015)062
arXiv:
1503.05078
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: