| Name | Description | Type | Package | Framework |
| AdditionalData | Subpart of Data class. | Class | hep.physics.yappi | FreeHep |
| CreateTexFile | See Also:Serialized FormSource Code:CreateTexFile. | Class | hep.physics.yappi.servlet | FreeHep |
| Data | Source Code:Data. | Class | hep.physics.yappi | FreeHep |
| DecayChannel | Source Code:DecayChannel. | Class | hep.physics.yappi | FreeHep |
| DecayGroup | Class | hep.physics.yappi | FreeHep | |
| DecayProduct | Source Code:DecayProduct. | Class | hep.physics.yappi | FreeHep |
| DecayText | Source Code:DecayText. | Class | hep.physics.yappi | FreeHep |
| Family | Source Code:Family. | Class | hep.physics.yappi | FreeHep |
| HTMLYappiWriter | Class | hep.physics.yappi.io | FreeHep | |
| Lookup | This class implements a servlet for the following URLs: . | Class | hep.physics.yappi.servlet | FreeHep |
| PDGID | The scheme is documented in D. | Class | hep.physics.yappi | FreeHep |
| PDGMCtoXML | Source Code:PDGMCtoXML. | Class | hep.physics.yappi.util | FreeHep |
| ParticleType | Source Code:ParticleType. | Class | hep.physics.yappi | FreeHep |
| XMLYappi | Source Code:XMLYappi. | Class | hep.physics.yappi | FreeHep |
| XMLYappiReader | Source Code:XMLYappiReader. | Class | hep.physics.yappi | FreeHep |
| XMLYappiWriter | Class | hep.physics.yappi | FreeHep | |
| Yappi | Yappi: Yet Another Particle Propery InterfaceVersion:$Id: Yappi. | Class | hep.physics.yappi | FreeHep |
| YappiParticlePropertyProvider | Source Code:YappiParticlePropertyProvider. | Class | hep.physics.yappi.util | FreeHep |