CERN ALICE experiment reveals unexpected gluon behavior inside atomic nuclei

The short version

• Physicists using the ALICE detector at CERN observed an unexpected drop in J/psi particle production rates at tiny spatial scales.[ScienceDaily]
• The findings challenge conventional nuclear shadowing models and offer support for gluon saturation theories.[ScienceDaily]
• The analysis was conducted using collision data gathered during Run 2 of the Large Hadron Collider.[ScienceDaily]

Key facts

• Physicists working on the ALICE experiment at CERN's Large Hadron Collider observed gluon behavior inside atomic nuclei using Run 2 data.[ScienceDaily]
• The experiment recorded a significant suppression of J/psi particle production rates at the smallest probed spatial scales.[ScienceDaily]
• The observed particle suppression challenged conventional nuclear shadowing theories and matched predictions of gluon saturation.[ScienceDaily]
• The study was published in the journal Physical Review Letters.[ScienceDaily]

Sources

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• CERN finds gluons behaving strangely deep inside atomic nucleiScienceDaily - Science