Sea quark surprise reveals deeper complexity in proton spin puzzle

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New data from the STAR experiment at the Relativistic Heavy Ion Collider (RHIC) add detail — and complexity — to an intriguing puzzle that scientists have been seeking to solve: how the building blocks that make up a proton contribute to its spin. The results reveal that different ‘flavors’ of antiquarks contribute differently to the proton’s overall spin — and in a way that’s opposite to those flavors’ relative abundance.

Vía Latest Science News — ScienceDaily https://ift.tt/2O7hhWw

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