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July 14, 2015
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The pentaquark could be composed of four quarks and one antiquark bound tightly together.
Now that NSF-funded researchers have discovered the long-sought pentaquark, their next step is to study how quarks are bound together within this remarkable particle. They could be bound together tightly, as seen in this image.
Credit: CERN
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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Related story: Physicists discover long-sought 'pentaquark' particle