1. A hypothetical subatomic particle predicted by supersymmetry theory that is the fermionic superpartner of the graviton.
Usage: physics; theoretical; technical

Examples

• In supersymmetric theories, the gravitino is proposed as the superpartner of the graviton.
• The gravitino would be one of the lightest supersymmetric particles if supersymmetry exists.
• Physicists are searching for evidence of the gravitino in high-energy particle experiments.
• The mass and properties of the gravitino remain unknown and are subjects of ongoing research.
• Some models suggest the gravitino could be a candidate for dark matter in the universe.