Scientists Locate the Missing Mass Inside the Proton (IMAGE)
Caption
A proton’s valence quarks (blue, red, and green), quark-antiquark pairs, and gluons (springs). Scalar gluon activity (pink) extends beyond the electric charge radius (orange) that surrounds the gluonic energy core (yellow).
Credit
Image courtesy of Argonne National Laboratory
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Image courtesy of Argonne National Laboratory
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