[Frost] About momcor.F in eloss correction

[Sungkyun Park]

Hi Eugene,

I have a question in momcor.F of eloss correction.

The following part is the energy loss correction for the air and Start Counter in FROST: 
(There is the momcor.F code part in ###.)
###########################################################
      mate = 8                          ! air                                                
      ierr = loss(mate, gap, pmass, po, p)
      do i = 1,3
         pi(i) = p(i)
      enddo

      mate = 2                           ! Start Counter scintillator                        
      ierr = loss(mate, dist, pmass, pi, p)

      do i = 1,3
         pi(i) = p(i)
      enddo
#############################################################

I know pout is the input 4 vector and pin is the output 4 vector.
The last variable for the 4 vector in the upper part is pi. That is, eloss calculates the energy loss in the air and Start Counter and save the new 4 vector in the pi. But In the part for FROST,

###############################################################
      if (icell .eq. 9) then
      call FROST(vertex, cdir, L) ! target cell                                              
      call targets(vertex, cdir, targ) !targets                                              

      flag = 2                                                                              
      le = L(17) / 10                                                                       
      ierr = loss(flag, le, pmass, pout, pin) ! scattering chamber end                      
      do i=1,3                                                                              
       pout(i) = pin(i)                                                                     
      enddo         
 ###########################################################

eloss use pout as the input 4 vector, not pi.
I check this pout is the initial 4 vector we give  an eloss program.

We do not need to use the eloss part for air and Start Counter so do we use the pout as the initial variable in the FROST part? or is it incorrect?

Sung