Journal
PHYSICS LETTERS B
Volume 694, Issue 4-5, Pages 346-348Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2010.10.005
Keywords
Neutrino mass; Seesaw; Effective field theory
Funding
- 973 Program [2010CB833000]
- [NSFC-10775074]
- [NSFC-10975078]
Ask authors/readers for more resources
When the standard model is viewed as a low energy effective theory, the neutrinos can obtain mass from higher dimensional operators. It has been known for long that such an operator first appears at mass dimension five and that it is unique. Here we show that the effective neutrino mass operator at every higher dimension is unique. This general claim is established using Young tableau, and illustrated by exhausting all potentially different operators at dimension seven. The result is relevant to the search of new physics effects beyond neutrino mass that can arise at a relatively low energy scale. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available