History: Livetime

-=Types of livetime=-

When an event of interest occurs and leaves a sufficiently large signal in our detector, it still might not be readout due to the front-end electronics or the DAQ system being "dead" at that time. Here I discuss two types of deadtime in our experiment:
[*] Electronic (or front-end) deadtime
[*] DAQ deadtime

They are important for the asymmetry measurement since they are a function of the trigger rate and could, in principle, be different for the two helicity states.


-=Electronic deadtime=-


-=DAQ deadtime=-
This is the simpler deadtime to measure and understand.

-=References=-

W.R. Leo, __Techniques for Nuclear and Particle Physics Experiments: A How-to Approach__, Second Edition. (Springer-Verlag, Berlin, Heidelberg 1994)