Constraints on a very light CP-odd Higgs of the NMSSM and other axion-like particles
S Andreas, O Lebedev, S Ramos-Sánchez… - Journal of High Energy …, 2010 - Springer
In the NMSSM, a light CP-odd Higgs arises due to spontaneous breaking of approximate
symmetries such as Peccei-Quinn or R-symmetry and is motivated by string theory. The case …
symmetries such as Peccei-Quinn or R-symmetry and is motivated by string theory. The case …