Do right-handed neutrinos provide more anomaly-free U(1) solutions?

[Breo]

If we consider de right-handed neutrino there would be more anomaly-free solutions than hypercharge for a U(1)?

 

[Simon Bridge]

You mean like:
http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.116008

 

[Breo]

I am not suscribed :s

 

[Simon Bridge]

GIves you a starting point to search though.

 

[Breo]

B-L conservation?

 

[Orodruin]

I am not suscribed :s

This is the arXiv version: http://arxiv.org/abs/1309.1709

 

[Breo]

Thank you.

If we would assign one hypercharge to a field that would determine the value of all others hypercharges? Are those predicted, also, by only one anomaly-free solution?

 

[Breo]

If you guys could tell me a good textbook about the open problems in SM I would be very grateful.