titles_atpr

                              Titles:  ATPR
                              =============
 
Contact:  N. West, Oxford.
 
Revision History:-
================
 
2.08  N. West     First version.
      S. Brice    Comment change.
2.09  N. West     Comment change.
 

 
Titles Files
------------
 
phi_attributes.dat
 
 
Verification
------------
 
 
Description
-----------
 
    This titles bank gives the attributes of all process codes.  Also see
interactions
 
 
Data Words
----------
 
        Fixed length Database Header.  See titles_dbhdr.html
 
      I = integer, F = floating point,  H =  hollerith (4 char)
 
  Wd Typ  Mnem.   Description
 
        KATPR_
   1  I           Number of words per entry.
 
  Then, for each entry:-
 
  +1  I   CODE    Particle or target code.
  +2  I   FLAGS   Flags.  SOURCE vertex primary particle ID code or 0 if the
                  process cannot be used as a SOURCE vertex.  See note 1.
  +3..H   TEXT    Description template (50 chars). See note 2.
 
 
Notes
-----
 
1.   If an interaction code can be used in an MCPI
     bank the its process code
     entry will have, as its FLAGS word, the ID of the primary particle
     produced.  For example, for a beta gamma decay, the particle code is that
     of an electron (E_minus).  Some INTERACTION class processes are used in an
     MCPI. E.g. neutron capture on various
     isotopes. This enables the user to study the gammas from the capture
     directly rather than set a neutron off and wait for the capture.
 
2.   Description templates provide a desription of the interaction.  The text
     may contain embedded parameters which can be translated by
     CHAR_ID_INTERACTIONS.  For example:-
 
        "Start $CP"
 
     The $CP symbol means: take the ccc field and decoded it as a particle name.
     So, when the routine CHAR_ID_INTERACTIONS is given this interaction code,
     it will return "Start E_minus".  The full set of embedded symbols are:-
 
        $TP   Decode ttt as a particle
        $TT   Decode ttt as a target
        $CC   Decode ccc as a channel
        $CP   Decode ccc as a particle
 
     For $CC:-
 
        n=0 is replaced by: "any channel"
        n>0 is replaced by  "channel n"