RHIT format

 

Hits reconstruction involves strip clustering and transformation from strip number system to local coordinate system in cm units. It also involves also calculation of errors and covariance term.

The bank definition is shown below:

 
*DO  RHIT  13 -c4/60  #.TracKer + Muon reconstructed hit definition
      6               #.NO. OF HIT ELEMENTS
   #. NAMESH
  1 :STAT           #. Hit status flag (for smeared hit = original HIT no.)
  2 :v              #. Precise coordinate (cm) in local system
  3 :w              #. Coarse coordinate (cm)
  4 :(vv)           #. Variance on precise coordinate (cm**2)
  5 :(vw)           #. Covariance term
  6 :(ww)           #. Variance on coarse coordinate = L(strip)**2/12

Notice that w-axis is normally parallel to z-axis (barrel detectors) or radial (forward detectors).

The transformations local system global system can be performed using the GEANT routines GDTOM   and GMTOD  .

The hits status flag is defined as follows ... not fixed as yet...