...MeV

For run 1B, the Linac has been upgraded to an energy of 400 MeV.

...transition

Consider a bunch of non-relativistic particles traveling in a circular orbit. The particles with a larger than average momentum will also have a larger than average velocity and will pull ahead of the rest of the bunch. In order to keep the bunch from blowing up longitudinally, one must therefore arrange for particles near the front of the bunch to be decelerated relative to the rest of the bunch, and for those near the tail to be accelerated (again, relative to the rest of the bunch). For highly relativistic particles, however, the situation is different. In this regime, the velocity of a particle is nearly constant (at c) regardless of its momentum. However, the path length is not constant: a particle with larger than average momentum will have a larger than average bending radius and will thus fall behind the rest of the bunch. So in this situation, one must accelerate the head of the bunch more than the tail. The point in the acceleration cycle at which the switch between these two descriptions occurs is called transition; the energy at which it occurs depends both on the mass of the particles being accelerated and the size of the accelerator ring. Properly rearranging the accelerating fields when passing through transition is tricky, and accelerators often experience extra losses at that point.

...number

For run 1A, events were numbered consecutively in each stream. This meant that if an event was written to multiple streams, it would in general have a different number in each. For run 1B, the numbering scheme was changed so that events are numbered consecutively within a run; an event then has the same number across all streams.

...calorimeter

Actually, one could get an idea of the direction of the incident particle by looking at how the location of the shower varies with depth in the calorimeter. Something like this is done for isolated muons, but not for any other type of particle.

...values

If one wished to include the standard model cross section in the mass determination, one could define an expected number of signal events as a function of top mass 473#473, assign it an error 474#474, and then take the prior probability for sameas_tex2html_wrap_inline15883 and sameas_tex2html_wrap_inline9531 to be the gaussian form 475#475.

Scott Snyder Fri May 19 19:19:46 CDT 1995