Author: David.nosp@m.e.Co.nosp@m.stanz.nosp@m.o@ce.nosp@m.rn.ch

Introduction

This package contains the EDM classes that are used to store the MC truth information together with the RDOs. Association between these classes and the RDO classes should be made by associating the identifiers

These classes should NOT be changed, unless there is a very specific reason. In particular events have been simulated and written out with pool since release 8 and a change in these classes may result in a big loss (like all of DC2)

data object associated with an InDetRawData object

An object of this class stores the simulation information associated with a RawData object, in two data members.

One is an integer, the "simulation data word", in which is packed information summarizing the digitization. Its interpretation may depend on which of the three subdetectors is concerned, but will typically contain bit-flags for "noise", "lost in readout", etc.

The other consists of a number (normally only one) of pair<int, float> specifying the barcode and energy (charge) deposited by a charged particle, or rather that part of the charge attributed to the corresponding RDO. Encoding and decoding methods will be supplied outside this class.

The implementation emphasizes compactness in memory, at the expense of speed, because objects of this class will be persistent, but will not be accessed in real production running.

InDetSimData_SimDataHelpers

helers are provided to decode the information that is normally stored in a single word in the Simulation Data Objects