机构:
Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USAUniv Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
Gogoladze, Ilia
[1
]
Okada, Nobuchika
论文数: 0引用数: 0
h-index: 0
机构:
Univ Maryland, Dept Phys, College Pk, MD 20742 USA
KEK, Theory Grp, Tsukuba, Ibaraki 3050801, JapanUniv Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
Okada, Nobuchika
[2
,3
]
Shafi, Qaisar
论文数: 0引用数: 0
h-index: 0
机构:
Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USAUniv Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
Shafi, Qaisar
[1
]
机构:
[1] Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[3] KEK, Theory Grp, Tsukuba, Ibaraki 3050801, Japan
We consider extensions of the next-to-minimal supersymmetric model (NMSSM) in which the observed neutrino masses are described in terms of effective dimension six (or seven) rather than dimension five operators. All such operators respect the discrete symmetries of the model. The new particles associated with the double (or triple) seesaw mechanism can have sizable couplings to the known leptons, even with a TeV seesaw scale. In the latter case some of these new short-lived particles could be produced and detected at the LHC. (C) 2009 Elsevier B.V. All rights reserved.