Search at SLAC Finds No Millicharged Particles
                                    
                                        
                                        SEP 01, 1998
                                    
                                
                            
                            
                                
                                    No established theory excludes the possibility of particles with charges a thousand times smaller than the electron’s. So why not look for them, especially when you already have just the right accelerator?
                                
                            
                            
                              DOI: 10.1063/1.882434
The quantization of electric charge is very well tested: The proton and electron charges 
                                © 1998. American Institute of Physics
                            
                            
                        