What is the frequency/wavelength of a neutrino?

Question

Nolan Aldridge · Accepted Answer

Neutrinos like all other particles have can behave like both a wave and a particle.

Since energy and momentum are conserved, the neutrino has the energy and momentum that is the difference between the measured values for the parent and daughter particles, such as when a proton decays into a neutron and a positron. Neutrinos were first proposed as a possible explanation for missing energy and momentum in specific nuclear reactions, such as beta decay. #p->n+e^++nu_e# Neutrinos possess energy and momentum, which vary based on the reaction that produced them. Given that a neutrino is a particle with momentum and energy, it can act like a particle or like a wave. The de Broglie equation describes the relationship between the relativistic momentum #p# and wavelength #lambda#. #lambda = h/p# Where #h# is Plancks' constant. A neutrino's wavelength can range from a few hundredth of a meter to several meters. High momentum neutrinos have shorter wavelengths.

Cooper Ann · Answer

undefined Neutrinos are generally associated with very high-energy phenomena such as nuclear reactions and cosmic events; however, they can have a wide range of energies, and therefore a wide range of frequencies and wavelengths. The precise frequency or wavelength of a neutrino would depend on its energy, which can vary significantly. Neutrinos have extremely small masses and interact very weakly with matter, making their detection difficult.