https://doi.org/10.1140/epjc/s10052-017-5104-2
Regular Article - Theoretical Physics
On-shell neutral Higgs bosons in the NMSSM with complex parameters
1
Instituto de Física Teórica (UAM/CSIC), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
2
Instituto de Física de Cantabria (CSIC-UC), 39005, Santander, Spain
3
Deutsches Elektronensynchrotron DESY, Notkestraße 85, 22607, Hamburg, Germany
* e-mail: sebastian.passehr@desy.de
Received:
20
June
2017
Accepted:
24
July
2017
Published online:
19
August
2017
The Next-to-Minimal Supersymmetric Standard model (NMSSM) appears as an interesting candidate for the interpretation of the Higgs measurement at the LHC and as a rich framework embedding physics beyond the Standard Model. We consider the renormalization of the Higgs sector of this model in its 
-violating version, and propose a renormalization scheme for the calculation of on-shell Higgs masses. Moreover, the connection between the physical states and the tree-level ones is no longer trivial at the radiative level: a proper description of the corresponding transition thus proves necessary in order to calculate Higgs production and decays at a consistent loop order. After discussing these formal aspects, we compare the results of our mass calculation to the output of existing tools. We also study the relevance of the on-shell transition matrix in the example of the 
width. We find deviations between our full prescription and popular approximations that can exceed 10%.
© The Author(s), 2017
