Common /ZAPRN/ : information on 'flying' decayed particles, ie. generally weakly decayed particles, that can be seen as secondary vertices. This common block is filled by a call to ZAUPRN
INTEGER MAXDEC ! Max Number of 'flying' decayed particles
PARAMETER (MAXDEC=100)
INTEGER NDEC, ! Number of 'flying' decayed
! particles
. DECCL(MAXDEC), ! class of decay (cf /ZATRS/)
. JETDEC(MAXDEC), ! Jet that first decay product
! belongs to
. PANC(MAXDEC), ! Ultimate ancestor of particle.
. PPARNB(MAXDEC), ! Pointer to parents of decayed
! particles.
. KIDNB(MAXDEC,MAXDEC), ! Pointer to kids in /ZATRS/
! (stable kids)
. PKIDNB(MAXDEC,MAXDEC) ! Pointer to kids in /ZAPRN/ itself
! (unstable kids)
REAL PDEC(MAXDEC), ! Momentum decayed particle
. RDECP(MAXDEC), ! Radius of decay
. NPROD(MAXDEC), ! Number of stable decay-products
. PNPROD(MAXDEC), ! Number of unstable decay-products
. PRODV(3,MAXDEC), ! decay-point
. PCHP(4,MAXDEC) ! sum of true 4-momentum of decay
! products