New tool for proton spin

How the particles that constitute a proton give rise to is to its rotation, or ‘spin’, is an intriguing open question of contemporary particle physics. A technique that could provide some answers has been developed using the world’s only polarized proton–proton collider. The work was published by the PHENIX Collaboration, which includes researchers from the RIKEN Brookhaven National Laboratory (BNL) Research Center in Upton, USA.

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New tool for proton spin