Statements (18)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | 
                                    
                                        
                                            gptkb:exotic_atom
                                        
                                         | 
                            
| gptkbp:antiparticle | 
                                    
                                        
                                            
                                            itself
                                        
                                        
                                         | 
                            
| gptkbp:charge | 
                                    
                                        
                                            
                                            0
                                        
                                        
                                         | 
                            
| gptkbp:composedOf | 
                                    
                                        
                                            
                                            electron
                                        
                                        
                                         positron  | 
                            
| gptkbp:discoveredIn | 
                                    
                                        
                                            
                                            1951
                                        
                                        
                                         | 
                            
| gptkbp:field | 
                                    
                                        
                                            
                                            particle physics
                                        
                                        
                                         | 
                            
| gptkbp:fullName | 
                                    
                                        
                                            gptkb:ortho-positronium
                                        
                                         | 
                            
| gptkbp:lifetimeInVacuum | 
                                    
                                        
                                            
                                            142 ns
                                        
                                        
                                         | 
                            
| gptkbp:mode | 
                                    
                                        
                                            
                                            three gamma photons
                                        
                                        
                                         | 
                            
| gptkbp:relatedTo | 
                                    
                                        
                                            gptkb:para-positronium
                                        
                                         | 
                            
| gptkbp:spinMultiplicity | 
                                    
                                        
                                            
                                            triplet
                                        
                                        
                                         | 
                            
| gptkbp:statistic | 
                                    
                                        
                                            gptkb:boson
                                        
                                         | 
                            
| gptkbp:symbol | 
                                    
                                        
                                            gptkb:o-Ps
                                        
                                         | 
                            
| gptkbp:totalSpin | 
                                    
                                        
                                            
                                            1
                                        
                                        
                                         | 
                            
| gptkbp:bfsParent | 
                                    
                                        
                                            gptkb:ortho-positronium
                                        
                                         | 
                            
| gptkbp:bfsLayer | 
                                    
                                        
                                            
                                            7
                                        
                                        
                                         | 
                            
| https://www.w3.org/2000/01/rdf-schema#label | 
                                    
                                        
                                            
                                            o-Ps
                                        
                                        
                                         |