Eur. Phys. J. C (2016) 76: 452
https://doi.org/10.1140/epjc/s10052-016-4298-z

Special Article - Tools for Experiment and Theory

Update of the flavour-physics constraints in the NMSSM

¹ Instituto de Física de Cantabria (CSIC-UC), 39005, Santander, Spain
² Instituto de Física Teórica (UAM/CSIC), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain

^* e-mail: florian.domingo@csic.es

Received: 29 March 2016
Accepted: 1 August 2016
Published online: 11 August 2016

Abstract

We consider the impact of several flavour-changing observables in the B- and the Kaon sectors on the parameter space of the NMSSM, in a minimal flavour violating version of this model. Our purpose consists in updating our previous results in [4] and designing an up-to-date flavour test for the public package NMSSMTools. We provide details concerning our implementation of the constraints in a series of brief reviews of the current status of the considered channels. Finally, we present a few consequences of these flavour constraints for the NMSSM, turning to two specific scenarios: one is characteristic of the MSSM-limit and illustrates the workings of charged-Higgs and genuinely supersymmetric contributions to flavour-changing processes; the second focus is a region where a light CP-odd Higgs is present. Strong limits are found whenever an enhancement factor – large , light , resonant pseudoscalar – comes into play.