D-Instanton Generated Dirac Neutrino Masses

Details D-Instanton Generated Dirac Neutrino Masses D-Instanton Generated Dirac Neutrino Masses

2008-03-19

arxiv.org/abs/0803.2876v2

Phys.Rev.D78:066012,2008

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 1 figure minor corrections, the version to be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.78.066012

We present a stringy mechanism to generate Dirac neutrino masses by D-instantons in an experimentally relevant mass scale without fine-tuning. Within Type IIA string theory with intersecting D6-branes, we spell out specific conditions for the emergence of such couplings and provide a class of supersymmetric local SU(5) Grand Unified models, based on the Z_2 x Z'_2 orientifold compactification, where perturbatively absent Dirac neutrino masses can be generated by D2-brane instantons in the experimentally observed mass regime, while Majorana masses remain absent, thus providing an intriguing mechanism for the origin of small neutrino masses due to non-perturbative stringy effects.

Affiliated with

Also associated with

No associations

Rating

D-Instanton Generated Dirac Neutrino Masses does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with D-Instanton Generated Dirac Neutrino Masses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and D-Instanton Generated Dirac Neutrino Masses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-323615