Photon calibration and electron estimators for MC with full EGS simulation

Introduction

The MC samples generated using the full EGS em shower simulation (aka full sim) need a different set of photon and electron estimator calibration functions. Those functions have been computed by Marie-Noelle (photons) and Paolo (electron estimators) and are applied by default in the CN's when full sim MC samples are analyzed. 

If you want to analyze by yourself those MC samples and you want to use those calibration functions you have to follow the following prescriptions.

How to apply the full sim photon calibration functions in your ALPHA job

• Link in your ALPHA job the following files from the CN official source code directory: corfull.F, gamread.F, qfgamp.F, card_force.inc

• Extract from the file newt.F, in the CN official code, the routines get_simul and force_correction and call get_simul in qunewr when MC data sets are analyzed.

• Add the following cards to your card file: DOFJ, if you are reading a full sim MC dataset, MEFL, RENF. The code will detect if you are reading a full sim MC dataset and, if this is the case, it will check if the card DOFJ exists, to be sure that you are aware that a full sim MC is being analyzed. Finally it will set the flag FJ_PHOT_COR=1 in the file card_force.inc to activate the special correction functions.

• The full sim photon corrections can be forced with the card: COGA 2, or inhibited with the card COGA 1, irrespectively of the actual MC simulation.

How to apply the full sim electron estimators (R_T and R_L) calibration functions in your ALPHA job

• Link in your ALPHA job the following files from the CN official source code directory: wwleptonid.F, card_force.inc and use the routine FLLEPT to identify the leptons.

• Extract from the file newt.F, in the CN official code, the routines get_simul and force_correction and call get_simul in qunewr when MC data sets are analyzed.

• Add the following cards to your card file: DOFJ, if you are reading a full sim MC dataset, MEFL, RENF. The code will detect if you are reading a full sim MC dataset and, if this is the case, it will check if the card DOFJ exists, to be sure that you are aware that a full sim MC is being analyzed. Finally it will set the flag FJ_RT_COR=1 in the file card_force.inc to activate the special correction functions.

• The full sim electron estimator corrections can be forced with the card: CORT 2, or inhibited with the card CORT 1, irrespectively of the actual MC simulation.

To be done

• Add plots of the special calibration functions

03/02/03