Root Class Reference

#include <Root.hh>

Detailed Description

Data Structure: Top level

Author

Stan Seibert sseib.nosp@m.ert@.nosp@m.hep.u.nosp@m.penn.nosp@m..edu

This data structure is used to represent a "physics event" in memory. The precise definition of what this means depends upon how the Monte Carlo is configured. If track deferral is disabled, then the "physics event" includes all the particles produced in the interaction. For example, in inverse beta decay a positron and an neutron are created. The positron produces light very quickly, whereas the neutron takes some time to capture and produce a gamma cascade. Both processes are part of the same physics event, but the DAQ simulation might split the early and late light into separate triggered events, depending on how the DAQ is configured.

Custom user processors are allowed to store values in the user* variables, which are also written to disk (except userPtr). Official processors distributed with RAT are never allowed to use these variables. New variables should be created instead.

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The documentation for this class was generated from the following file:

• /home/docs/checkouts/readthedocs.org/user_builds/ratpac/checkouts/latest/src/ds/include/RAT/DS/Root.hh