Neutrino / Infrared question

[renfield]

What is the relationship of the nutrino to infrared?

[Nereid]

Could you say a bit more about what you're looking to know?

At first glance the answer would be "nothing whatsoever". Neutrinos, being neutral, are blind to electro-magnetism, and infrared is a term to describe EM radiation/photons in a particular frequency/wavelength range.