Neutrino Scattering: F. Diagrams at 1st Order

• Leptone
In summary, neutrino scattering is a fundamental process in particle physics where a neutrino interacts with a target particle and produces a new set of particles. Feynman diagrams, also known as F. diagrams, are used to calculate the probability of this interaction occurring. The "1st order" in neutrino scattering refers to the level of complexity in the Feynman diagram, with only one interaction between the neutrino and the target particle. F. diagrams are useful in studying neutrino scattering as they provide a visual representation of complex equations and allow for predictions about particle behavior. By studying neutrino scattering, we can gain a better understanding of the properties and behavior of neutrinos, which in turn helps us understand the universe.
Leptone
Hey...i'm studying the reaction neutrino+antineutrino -> W(+) + W(-)
but i don't understand which are the relevant f. diagrams at first order (semiclassic approximation). Does anyone know which are?

thank you

At tree level I'd say there's just one. In the crossed channel: νe + W- → e- → νe + W-

Bill_K said:
At tree level I'd say there's just one. In the crossed channel: νe + W- → e- → νe + W-

Shouldn't there also be a contribution from an s-channel Z?

What is neutrino scattering?

Neutrino scattering is a fundamental process in particle physics where a neutrino interacts with a target particle, such as an electron or a nucleus, and produces a new set of particles.

What are F. diagrams in neutrino scattering?

Feynman diagrams, also known as F. diagrams, are graphical representations of particle interactions in quantum field theory. They are used to calculate the probability of a particular interaction occurring.

What is meant by "1st order" in neutrino scattering?

The "1st order" in neutrino scattering refers to the level of complexity in the Feynman diagram. In 1st order diagrams, there is only one interaction between the neutrino and the target particle.

Why are F. diagrams useful in studying neutrino scattering?

F. diagrams provide a visual representation of complex mathematical equations, making it easier to understand and calculate the probability of neutrino interactions. They also allow scientists to make predictions about the behavior of particles during scattering processes.

How does studying neutrino scattering help us understand the universe?

Neutrinos are some of the most abundant particles in the universe, but they are also some of the least understood. Studying neutrino scattering can provide insight into the properties and behavior of neutrinos, which in turn can help us better understand the structure and evolution of the universe.

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