Abstract
It has been pointed out recently that current experiments still allow for a two Higgs doublet model where the coupling () is negative; a sign opposite to that of the Standard Model. Due to the importance of delayed decoupling in the coupling, improved measurements will have a strong impact on this issue. For the same reason, measurements or even bounds on are potentially interesting. In this article, we revisit this problem, highlighting the crucial importance of , which can be understood with simple arguments. We show that the impacts on models of both and are very sensitive to input values for the gluon fusion production mechanism; in contrast, and are not. We also inquire if the search for and its interplay with will impact the sign of the coupling. Finally, we study these issues in the context of the flipped two Higgs doublet model.
4 More- Received 2 July 2014
DOI:https://doi.org/10.1103/PhysRevD.90.015021
© 2014 American Physical Society