LT- and DC-plane  efficiencies for years 1998, 1999 and 2000

G. Bruni

      October 2000

The efficiencies for the LT- and DC-planes are evaluated for years 1998, 1999 and 2000.  Special events taken along regular data-taking for calorimeter calibration purposes are used. The run list can be obtained through the command "oruninfo -t CALCAL". The full database from year 1995 to 2000 is reproduced here . The format is: tape-run-#events-1st event-last event-date-time.

The method used is described in [1] and references therein. We include for future reference the  source ,
the  include  and the  makefiles  used for the analysis.
Also the  kumacs  directory that contains the kumacs and the results is included. Its main structure is:

         kumacs
            |
            |--- open2000.kumac
            |--- open1999.kumac
            |--- open1998.kumac
            |
            |---- dc
            |      |---- effixdc.kumac
            |      |---- compare.kumac
            |      |---- openset.kumac
            |      |---- steering
            |      |---- txtool
            |      |---- *.for
            |      |
            |      |---- valori_finali
            |                |
            |                |--- wire_eff_dc{plane}_{year}.txt
            |
            |
            |---- lt
                   |--- lteff.kumac
                   |--- compare.kumac
                   |--- openset.kumac
                   |--- steering
                   |--- txtool
                   |--- *.for
                   |
                   |---- valori_finali
                             |
                             |--- run{year}plane{plane}stripr
                             |--- run{year}plane{plane}stripf
                             |--- run{year}plane{plane}rho-phi
 

The  files open{year}.kumac have to be adapted to open the ntuples obtained from the program run.
Once this is done, the easiest way to run the chain is to make use of the script named steering, that can be convenientely run in batch.
For example:

> cd kumacs/dc
> steering 1999 true >& 1999_eff.log &

will do the work for the year 1999.  It needs two arguments: the year and a flag that assumes the value "true" if the kumacs will run in batch (it essentially prevents many "wait" inside the kumac that will otherwise be active).  The same applies for the lt.
The kumacs will produce postscript plots and write the final results inside the subdirectory named "valori_finali".

There is also a kumac called "compare.kumac" that allows the comparison of the final values for different years.

Finally a script named txtool can be used to produce a postscript summary of the efficiency files produced in "valori_finali".
 

2. Statistics

In the following table we report the statistic used for the analysis. Almost all but a few of the runs have been used.
 
 

3. Results

The results can be read off from the following plots and tables.
Note: all the runs have been processed, including those where the ZEUS_ONLY was bad. The efficiencies include therefore the overall inefficiency due HV problems and all that.
The (preliminary) list of the 1999 and 2000 runs where the ZEUS_ONLY was off or malfunctioning is here.
(It has been taken from the EP run summaries).
A list of runs where the ZEUS_ONLY was not participating to the daq chain, taken from the runsummaries is here for  1999  and  2000.

The list of the runs actually used for the final analysis is here:  1998 ,  1999 ,  2000 .

DC

 1998_read , 1998_write
 1999_read , 1999_write
 2000_read , 2000_write
 Comparison 97-98-99-00 ,  Summary wire efficiencies 97-98-99-00
  Comparison 97-(99-00)
 

LT

 1998 ,  1999 ,  2000
 Comparison 97-98-99-00 ,  Summary lt efficiencies 97-98-99-00
 Comparison 97-(99-00)
 
 
 

References

[1] R. Nania, Efficienze DC e LT 1997 - Internal note, August 1998