A neutrino is a subatomic particle that has no electric charge and a very small mass. It is one of the fundamental particles that make up the universe, along with protons, neutrons, and electrons.
Neutrinos have a very small mass compared to other particles, but they still contribute to the overall mass of the universe. According to the Standard Model of particle physics, neutrinos gain mass through interactions with the Higgs field.
There are several methods that scientists use to measure the mass of neutrinos, including measuring the effects of their gravity on surrounding matter, studying their interactions with other particles, and observing their behavior in different environments.
The study of neutrino mass contribution is important because it helps us understand the fundamental properties of matter and the evolution of the universe. It also has implications for particle physics and cosmology, and could potentially lead to new discoveries and advancements in these fields.
The mass of neutrinos plays a role in the large-scale structure of the universe, as they are one of the main components of dark matter. Their mass also affects the rate of expansion of the universe, which has implications for its ultimate fate.