Fermilab, June 8, 2005.

How to use ISALHA and ISALHD -- a brief how-to: 

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* SPECTRUM OUTPUT
To obtain SuSy Les Houches Accord output from ISAJET/ISASUSY, a call
to ISALHA should be added at the point where SUGPRT is normally 
called. The input parameters are:
C     IMODEL = model type for SUGRA
C     IMODIN = input model type to control formatting
C     MT     = top mass

Here's how to call it:
C...Write out SLHA spectrum to stdout.
      CALL ISALHA(IMODEL,IMODIN,MT)

Before ISAJET 7.71, ISALHA was distributed as a stand-alone addon to
ISAJET (can be obtained from Csaba Balazs or from the SLHA web page). 
After version 7.71, the ISALHA subroutine is already included
in the standard isajet source code distribution. 

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* DECAY TABLE OUTPUT
To obtain a SuSy Les Houches Accord decay table from ISAJET/ISASUSY, a c
all to ISALHD should be added at the point where SSPRT is normally 
called.
Here's how to call it (compared to the normal decay output call):
-------------------------------------
C...Write all modes (standard ISAJET format) to stdout
C      DO 200 J=1,NOUT
C        CALL SSPRT(IDOUT(J))
C 200  CONTINUE
C...Write all modes (SLHA format) to stdout
      DO 201 J=1,NOUT
        CALL ISALHD(IDOUT(J),J,NOUT)
201   CONTINUE




Peter Skands, Csaba Balazs