Changeset 73a6d3a in git for classes

Timestamp:

Feb 22, 2021, 10:18:13 AM (4 years ago)

Author:

Emmanuel Perez <emmanuel@…>

Parents:

601a13b

Message:

Fix the sign of the off-diagonal terms of the track covariance matrix which involve the curvature
(the sign of these terms must be consistent with the sign convention used for C)

File:

• classes/DelphesClasses.cc (modified) (2 diffs)

classes/DelphesClasses.cc

@@ -122 +122 @@
   // off diagonal terms
   Cv(0, 1)=ErrorD0Phi;
-  Cv(0, 2)=ErrorD0C;
+  Cv(0, 2)=-ErrorD0C;
   Cv(0, 3)=ErrorD0DZ;
   Cv(0, 4)=ErrorD0CtgTheta;
-  Cv(1, 2)=ErrorPhiC;
+  Cv(1, 2)=-ErrorPhiC;
   Cv(1, 3)=ErrorPhiDZ;
   Cv(1, 4)=ErrorPhiCtgTheta;
-  Cv(2, 3)=ErrorCDZ;
-  Cv(2, 4)=ErrorCCtgTheta;
+  Cv(2, 3)=-ErrorCDZ;
+  Cv(2, 4)=-ErrorCCtgTheta;
   Cv(3, 4)=ErrorDZCtgTheta;
 
@@ -181 +181 @@
   // off diagonal terms
   Cv(0, 1)=ErrorD0Phi;
-  Cv(0, 2)=ErrorD0C;
+  Cv(0, 2)=-ErrorD0C;
   Cv(0, 3)=ErrorD0DZ;
   Cv(0, 4)=ErrorD0CtgTheta;
-  Cv(1, 2)=ErrorPhiC;
+  Cv(1, 2)=-ErrorPhiC;
   Cv(1, 3)=ErrorPhiDZ;
   Cv(1, 4)=ErrorPhiCtgTheta;
-  Cv(2, 3)=ErrorCDZ;
-  Cv(2, 4)=ErrorCCtgTheta;
+  Cv(2, 3)=-ErrorCDZ;
+  Cv(2, 4)=-ErrorCCtgTheta;
   Cv(3, 4)=ErrorDZCtgTheta;