Changes between Initial Version and Version 1 of RaveVertexingUsage

Timestamp:

Jun 20, 2007, 8:45:11 AM (18 years ago)

Author:

anonymous

Comment:

--

RaveVertexingUsage

@@ +1 @@
+{{{
+#!cpp
+* create factory with the standard homogenous rave::ConstantMagneticField,
+  * 4 Tesla in "z". No material effects (because we use the "VacuumPropagator").
+  * Default reconstruction method is "avr",
+  * verbosity level is "0".
+  */
+  rave::VertexFactory factory ( rave::ConstantMagneticField(0.,0.,4.),
+                                rave::VacuumPropagator(), "avr", 0 );
+ 
+
+ /* from "tracks" ( std::vector < rave::Track > ) create "vertices",
+  * using the Multivertex "mvf" method "cutting" at sigma=3.0.
+  * (I.e. a track is considered incompatible with a vertex if
+  * the reduced distance > 3.0)
+  */
+  std::vector < rave::Vertex > vertices = factory.create( tracks, "mvf-sigmacut:3.0" );
+
+ /* We fit vertices again, this time using
+  * the iterative adaptive fitter technique.
+  * For the primary vertex we "cut the tracks" at sigma=3.0
+  * all subsequent vertices have sigma=6.0.
+  */
+  std::vector < rave::Vertex > v2 = factory.create( tracks, "avr-primcut:3.0-seccut:6.0" );
+
+
+}}}