A natural connection between neutrino mass generation and the lightness of a next-to-minimal supersymmetric Standard Model pseudoscalar

作者：Das Debottam^*; Abada Asmaa; Bhattacharyya Gautam; Weiland Cedric

来源：Pramana - Journal of Physics, 2012, 79(4): 867-870.

DOI：10.1007/s12043-012-0391-5

• Neutrino mass
• inverse see-saw
• next-to-minimal supersymmetric Standard Model

One of the attractive properties of the NMSSM is that it can accommodate a light pseudoscalar of order 10 GeV. However, such scenarios are constrained by several experimental results, especially those related to the fermionic decays of the pseudoscalar. In this work, extending the NMSSM field content by two gauge singlets, with lepton number + 1 and -1, we generate neutrino masses via the inverse see-saw mechanism at one hand and on the other hand a very light pseudoscalar becomes experimentally viable by having dominant invisible decay channels which help it to evade the existing bounds.

• 出版日期2012-10