The MINERvA experiment at Fermilab, utilizing the NuMI beam, has made the first precise depiction of a proton using neutrinos instead of light as the imaging tool.
The building blocks of atomic nuclei, protons and neutrons, are comprised of quarks and gluons that interact strongly with each other. Due to the strength of these interactions, determining the structure of protons and neutrons through theoretical calculation is challenging.
Therefore, scientists must resort to experimental methods to determine their structure. Neutrino experiments utilize targets consisting of nuclei comprised of numerous protons and neutrons bound together, which makes it difficult to deduce information about the structure of protons from these measurements.
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