Most L3 triggers inherit from the base class L3Base.
This class contains accessors Et(), DetEta(), Eta(), Phi(), and
ToolName(). Other accessors are derived from these values: E(), Px(),
Py() and Pz(). When these accessors are present in a class from the
base class, they are listed at the beginning of the table and are
separated from the accessors specific to this class by a double line.
Although most classes inherit this base class, the quantities the base
class contains are not always filled from the same methods. The
ToolName() accessor allows for later separation of trigger objects by
trigger list tool instances. Phi() is converted if necessary to always
be in 
.