A possible connection between neutrino mass generation and the lightness of a NMSSM pseudoscalar

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

来源：Physics Letters B, 2011, 700(5): 351-355.

DOI：10.1016/j.physletb.2011.05.020

• Neutrino mass
• Inverse seesaw
• NMSSM

One of the interesting properties of the NMSSM is that it can accommodate a light pseucloscalar 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 Letter, we extend the NMSSM field content by two gauge singlets, with lepton numbers +1 and -1. This serves the twin purpose of generating neutrino masses via the inverse seesaw mechanism and keeping the option of a very light pseucloscalar experimentally viable by opening dominant invisible decay channels of the pseudoscalar which help it evade the existing bounds.

• 出版日期2011-6-20