Michael Jay Pérez In collaboration with J. Kile, P. Ramond, and J. Zhang Phenomenology 2014, Pittsburgh, PA May 5, 2014 arXiv: 1311.4553.

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Presentation transcript:

Michael Jay Pérez In collaboration with J. Kile, P. Ramond, and J. Zhang Phenomenology 2014, Pittsburgh, PA May 5, 2014 arXiv:

The Flavor Puzzle The Flavor Ring: neutrino sector A Special Majorana Matrix Flavor Group : Frobenius group basics Underlying Theory Summary and Conclusion 2

Quarks Leptons

4

Up-quarks display large hierarchy GUT Puzzle ? Seesaw 5

Can majorana mass undo the hierarchy? Would need to have a severe hierarchy What sets the physics of Majorana matrix? Should “know” what sets the hierarchy in Y (0) Natural candidate: Family symmetry! 6

7 Generic Eigenvalues :

At this special point, a vanishing sub-determinant Can we produce it naturally with a family symmetry? 8 1: rλ 12 : rλ 12 ~ 1: :

Gatto-like Relation Neutrino masses for a particular mixing scheme Ex: TBM Mixing Normal Hierarchy 9

Smallest Non-Abelian discrete subgroup of SU(3) that is not a subgroup of SO(3) Also called T7 in the literature Contains 21 Elements 10

Step I : Choose Rep’s of Fields Want to work within SU(5) : Choose all matter fields to transform as family triplets Also introduce Familons which are family triplets or anti- triplets but gauge singlets 11

One linear combination of dimension-five Invariants Hierarchies carried by Familon Fields Can also be done through single dimension-six 12 gives zero sub-determinant!

Invariant is singled out by additional symmetries 13

Flavor Ring: tying Grand Unification to the flavor puzzle can lead to new insights Using family symmetry to give Majorana physics begins to give a more connected picture Found a compelling and predictive Majorana matrix Natural in terms of a family symmetry Stay tuned – more to come! 14

Extreme hierarchy dictates a subgroup of SU(3) Neutrino mixing seems to indicate a finite subgroup Traceless! 15

16

17 Similar to the Dim-5 case. The form of nesting is quite suggestive.