Following Chris Powell's work, which he You do not have access to view this node at an S&C meeting, to resolve the problem with RICH scalers I have Finding a cut for corrupt scalers in Run 8 dAu, I have implemented some code to remove events with corrupt RICH scalers from the P08ic and P08ie productions of Run 8 dAu. The code can be used two ways:

1. As a static method:
   

     gROOT->Macro("loadMuDst.C");
     gSystem->Load("StMuAnalysisMaker");
     ...
     for_loop_over_MuDst_events {
       ...
       if (!StMuScalerCutter::accept(mudst->event())) continue;
       ...
     }
   

2. As a maker. For those who use a chain:
   

     gROOT->Macro("loadMuDst.C");
     gSystem->Load("StMuAnalysisMaker");
     StChain chain;
     StMuDstMaker maker1(...);
     StMuScalerCutter maker2();
     maker2.SetAttr(".Privilege",1);
     ...
     for_loop_over_MuDst_events {
       ...
       int result = chain.Make();
       if (result == kStSkip) continue;
       ...
     }
   

   ...and for those who don't use a chain:
   

     gROOT->Macro("loadMuDst.C");
     gSystem->Load("StMuAnalysisMaker");
     StMuDstMaker maker1(...);
     StMuScalerCutter maker2();
     ...
     for_loop_over_MuDst_events {
       ...
       int result1 = maker1.Make();
       int result2 = maker2.Make();
       if (result2 == kStSkip) continue;
       ...
     }
   

I hope this is useful. Feedback is welcome. Note that this is relevant only for events with TPC/TPX, but I did not write any code to determine whether these detectors are in the data; that is left to the user if the user cares.

The code is located in StRoot/StMuAnalysisMaker and should be available in DEV starting February 5, 2009.

Many thanks go to Chris for his work on this topic.

-Gene