Fix for "unknown particle properties" exception

 The particle properties within the JAS LCD environment are given by a default particle property class. This does not contain most of the exotic particles in theories such as SUSY.  A Pythia particle properties class can be accessed which will allow access to properties of particle ID's known to PYTHIA. The following code will set this as the particle property provider. Within JAS, choose "File" -> "New" -> "Blank Program Page" and copy and paste the following code into it. Save the file as MyDriver.java to a directory in your CLASSPATH and compile it. When you start a new job simply load MyDriver and it will change the default particle property provider.

import hep.lcd.util.driver.*;
import hep.physics.*;
import hep.lcd.contrib.physics.PythiaParticlePropertyProvider;

public class MyDriver extends Driver
{
public MyDriver()
{
ParticleProperties.setParticlePropertyProvider(new MyPPP());
}
// Workaround for mistakenly protected constructor
// in PythiaParticlePropertyProvider
class MyPPP extends PythiaParticlePropertyProvider
{
}
}