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man@SUT
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I am a new member of the forum. I don't understand the physical meaning of the form factor. Could you help me?
Well, i guess there are other ways to look at it but the basic idea will be the "link to strength of interaction". I know there is also a topological explanation where you can plot the form factor as a surface. The deformation of that surface during an interaction gives an idea about what is going on and how strong that interaction is. In QHD (quantum hadro dynamics), this is used very often.man@SUT said:Thank you, Malon. I found this in the cross section of e-e+ to vector meson. Is there another meaning of form factor in high energy physics.
Mass ? Keep in mind that mass is not the coupling constant of electromagnetic or (in general) weak interactions. Again, read the definition in the paper, the key notion is the "squared four momentum Q² dependency" .man@SUT said:For invariant amplitude and invariant mass amplitude, I think they are the same. We calculate them on the way to find the cross section. So, how does it relate to mass if both are the same? I am a bit confused.
A form factor is a mathematical function that describes the spatial distribution of a particle's charge or current. It is used to calculate the strength of interactions between particles.
The physical meaning of form factor is that it represents the size and shape of a particle, as well as how its charge or current is distributed within that shape. It provides information about the internal structure of a particle.
Form factor is typically measured or calculated through experiments involving particle scattering. The scattering pattern is then analyzed using mathematical models to determine the form factor.
Form factor is significant in physics because it allows us to understand the internal structure and properties of particles, such as their charge distribution and size. It also helps us to better understand the fundamental forces of nature and the interactions between particles.
Yes, form factor can be used to study a variety of particles, including subatomic particles such as electrons, protons, and neutrons, as well as larger particles like atoms and molecules. It is a fundamental concept in the study of particle physics and is applicable to many different areas of physics.