Dr Debottam Das (Laboratoire de Physique Theorique d'Orsay)
One of the interesting properties of the NMSSM is that it can accommodate a light pseudoscalar of order 10 GeV. However, such scenarios are challenged by several experimental constraints, especially those related to the fermionic decays of the pseudoscalar. In this talk we propose a model where the NMSSM field content is extended by two gauge singlets, with lepton numbers $+1$ and $-1$. This serves the twin purpose of generating neutrino masses via the inverse see-saw mechanism and keeping the option of a very light pseudoscalar experimentally viable by opening dominant invisible decay channels of the pseudoscalar which help it evade the existing bounds.
Prof. Asmaa Abada (Laboratoire de Physique Theorique d'Orsay) Dr Debottam Das (Laboratoire de Physique Theorique d'Orsay) Prof. Gautam Bhattacharyya (SINP,India) M. cedric weiland (Laboratoire de Physique Theorique d'Orsay)