Sorry to take so long to get back.
Thanks again Steven and Craig.
Sorry to make you chew your cabbage twice Steven re velocity and mass.
If the HB has a "mass" then should we not say it has a particlular mass at a particular velocity?... I guess CERN must know the velocity that it will escape or seperate whatever and the expected mass will be based on the velocity they expect to observe the HB.
I am finding the more I learn the more questions I raise....
Thanksagain I know how I must frustrate you all and it is with such an appreciation that I thank you all.
alex
