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parameter (mmrye=3,mmryk=1) !memory saving factor
parameter (kollmx=45000/mmrye,npommx=150)
parameter (mamx=250/mmryk,ngrmx=1,ntymi=0,ntymx=2)
parameter (nflavems=4)
!----------------------------------------------------------------------
! POMERON
!----------------------------------------------------------------------
double precision om1int,om1intc
* ,atilde,btildep,btildepp
common/comega/om1int(kollmx),om1intc(kollmx)
common/comtilde/atilde(ntymi:ntymx,kollmx)
*,btildep(ntymi:ntymx,kollmx),btildepp(ntymi:ntymx,kollmx)
*,ntymin
!----------------------------------------------------------------------
! POMERON CONFIGURATION
!----------------------------------------------------------------------
common/col/koll,iproj(kollmx),itarg(kollmx),coord(4,kollmx)
common/col1/kremn(mamx,mamx,2),lremn(mamx,2)
dimension kproj(mamx,mamx),ktarg(mamx,mamx)
*,lproj(mamx),ltarg(mamx)
equivalence (kproj(1,1),kremn(1,1,1)),(ktarg(1,1),kremn(1,1,2))
equivalence (lproj(1),lremn(1,1)),(ltarg(1),lremn(1,2))
double precision gammaV
common/col6/kproj3(mamx,mamx),ktarg3(mamx,mamx)
*,lproj3(mamx),ltarg3(mamx)
*,epsilongp(kollmx,0:1),epsilongt(kollmx,0:1)
*,epsilongs(kollmx,0:1),gammaV(kollmx)
*,epsilongf(kollmx),epsilongb(kollmx)
common/col4/bk(kollmx),bhpr(npommx,kollmx),bkx(kollmx)
*,bky(kollmx)
double precision PomInck,xxnuc,xzcutpar
common/col7/zparremn(kollmx,2),PomInck(kollmx),xzcutpar(kollmx)
*,xxnuc(mamx,2,kollmx),npnuc(mamx,2,kollmx)
*,irnuc(mamx,2,kollmx),knucnt(2,kollmx)
real zparpro(kollmx),zpartar(kollmx)
equivalence (zparpro(1),zparremn(1,1)),(zpartar(1),zparremn(1,2))
!----------------------------------------------------------------------
! koll: number of relevant pairs
! iproj(k): projectile index for k-th pair
! itarg(k): target index for k-th pair
! lproj(ip): number of pairs linked to projectile ip
! kproj(ip,l): corresponding pair index of the l-th pair
! ltarg(it): number of pairs linked to target it
! ktarg(it,l): corresponding pair index of the l-th pair
! bk(k): b value of the k-th pair (=sqrt(bx**2.+by**2.))
! bkx(k): bx value of the k-th pair
! bky(k): by value of the k-th pair
! lproj3(ip): number of pairs linked to projectile ip (no diffraction)
! kproj3(ip,l): corresponding pair index of the l-th pair (no diffraction)
! ltarg3(it): number of pairs linked to target it (no diffraction)
! ktarg3(it,l): corresponding pair index of the l-th pair (no diffraction)
!----------------------------------------------------------------------
common/cems3/nprt(kollmx),npr(0:3,kollmx)
common/cems4/nprmx(kollmx)
!----------------------------------------------------------------------
! nprt(k): number of pomerons of collision k
! npr(id,k): number of pomerons of type id of collision k
! (id: 0=zero, 1=soft, 2=reggeon, 3=hard)
! nprmx(k): maximum number of pomerons of collision k
!----------------------------------------------------------------------
common/cems2/itpr(kollmx),idpr(npommx,kollmx),ivpr(npommx,kollmx)
*,idfpr(npommx,kollmx)
*,nvpr(npommx,kollmx),nbkpr(npommx,kollmx)
!----------------------------------------------------------------------
! itpr(k): interaction type of collision k
! (0=nothing, 1=inelastic, 2=diffractive)
! idpr(n,k): type of pomeron (n,k)
! (0=zero, 1=soft, 2=reggeon, 3=hard)
! ivpr(n,k): status of pomeron (n,k) (0=virtual, 1=real, 2=backup)
! nbkpr(n,k): position of the backup pomeron
! nvpr(n,k): position of the pomeron for this backup pomeron
! idfpr(n,k): link of pomeron (n,k) (0=no, 1=pro&tar, 2=pro, 3=tar)
! idfpr=-1 means backup pomeron
!----------------------------------------------------------------------
double precision xpr,ypr,xppr,xmpr,xpprbor,xmprbor
common/cems1/xpr(npommx,kollmx),ypr(npommx,kollmx)
common/cems1c/xppr(npommx,kollmx),xmpr(npommx,kollmx)
common/cems1d/xpprbor(npommx,kollmx),xmprbor(npommx,kollmx)
common/cems1e/nemispr(2,npommx,kollmx),ptprboo(2,npommx,kollmx)
!----------------------------------------------------------------------
! xpr(n,k): x=x+x- of pomeron (n,k)
! ypr(n,k): rapidity of pomeron (n,k)
! xpprbor(n,k): x+ of in Born parton of pomeron (n,k)
! xmprbor(n,k): x- of in Born parton of pomeron (n,k)
! nemispr(i,n,k): number of up (i=1) and down (i=2) emissions
!----------------------------------------------------------------------
double precision xp1pr,xp2pr,xm1pr,xm2pr,xxp1pr,xyp1pr
* ,xxp2pr,xyp2pr,xxm1pr,xym1pr,xxm2pr,xym2pr
common/cems7/xp1pr(npommx,kollmx),xp2pr(npommx,kollmx)
* ,xm1pr(npommx,kollmx),xm2pr(npommx,kollmx)
* ,idp1pr(npommx,kollmx),idp2pr(npommx,kollmx)
* ,idm1pr(npommx,kollmx),idm2pr(npommx,kollmx)
common/cems8/xxp1pr(npommx,kollmx),xyp1pr(npommx,kollmx)
* ,xxp2pr(npommx,kollmx),xyp2pr(npommx,kollmx)
* ,xxm1pr(npommx,kollmx),xym1pr(npommx,kollmx)
* ,xxm2pr(npommx,kollmx),xym2pr(npommx,kollmx)
!----------------------------------------------------------------------
! xp1pr(n,k): x of string end p1 p1 p2
! xp2pr(n,k): x of string end p2 \ /
! xm1pr(n,k): x of string end m1 \ /
! xm2pr(n,k): x of string end m2 \/
! idp1pr(n,k): id of string end p1 ( 0=0 ) /\
! idp2pr(n,k): id of string end p2 ( 1=s 2=v ) / \
! idm1pr(n,k): id of string end m1 ( 4=ss*2 5=ss ) / \
! idm2pr(n,k): id of string end m2 ( 8=f ) m1 m2
! xxp1pr(n,k),xyp1pr(n,k): px,py of string end p1
! xxp2pr(n,k),xyp2pr(n,k): px,py of string end p2
! xxm1pr(n,k),xym1pr(n,k): px,py of string end m1
! xxm2pr(n,k),xym2pr(n,k): px,py of string end m2
!----------------------------------------------------------------------
double precision xme
common/cems11/xme(mamx)
!----------------------------------------------------------------------
! xme(j): x- exchange for nucleon j
!----------------------------------------------------------------------
common/cems22/idhpr(npommx,kollmx),idrpr(npommx,kollmx)
* ,idsppr(npommx,kollmx),idstpr(npommx,kollmx)
!----------------------------------------------------------------------
! idhpr(n,k): flav hard Pom (n,k) (0=gg,1=qg,2=gq,3=qq)
! idrpr(n,k): flav Regg (n,k) (0=ss,1=0va0,2=v00a,3=0as0,4=s00a,5=0sv0,6=v00s)
! idsppr(n,k): flav soft P (n,k) (proj) (0=ss,1=vs,2=sa,3=va,4=dd,5=svv,6=aas)
! idstpr(n,k): flav soft P (n,k) (targ) (0=ss,1=vs,2=sa,3=va,4=dd,5=svv,6=aas)
!----------------------------------------------------------------------
!----------------------------------------------------------------------
! REMNANT CONFIGURATION
!----------------------------------------------------------------------
common/remn4/jcpval(nflavems,2,mamx),jctval(nflavems,2,mamx)
common/remn3/jcpref(nflavems,2,mamx),jctref(nflavems,2,mamx)
common/remn2/zzremn(mamx,2)
common/remn/icremn(2,mamx,2)
dimension icproj(2,mamx),ictarg(2,mamx)
double precision xpp,xmp,xpt,xmt,xxp,xyp,xxt,xyt
double precision xpz,xmz,xxz,xyz
common/cemsr/xpz(mamx,2),xmz(mamx,2)
* ,xxz(mamx,2),xyz(mamx,2)
* ,idz(mamx,2),ivz(mamx,2)
* ,isz(mamx,2),iaz(mamx,2)
dimension xpp(mamx),xmp(mamx),xpt(mamx),xmt(mamx)
* ,xxp(mamx),xyp(mamx),xxt(mamx),xyt(mamx)
* ,idp(mamx),ivp(mamx),ivt(mamx),idt(mamx)
* ,isp(mamx),iap(mamx),ist(mamx),iat(mamx)
equivalence (icproj(1,1),icremn(1,1,1))
* ,(ictarg(1,1),icremn(1,1,2))
equivalence (xpp(1),xpz(1,1)),(xmt(1),xpz(1,2))
* ,(xmp(1),xmz(1,1)),(xpt(1),xmz(1,2))
* ,(xxp(1),xxz(1,1)),(xxt(1),xxz(1,2))
* ,(xyp(1),xyz(1,1)),(xyt(1),xyz(1,2))
* ,(idp(1),idz(1,1)),(idt(1),idz(1,2))
* ,(ivp(1),ivz(1,1)),(ivt(1),ivz(1,2))
* ,(isp(1),isz(1,1)),(ist(1),isz(1,2))
* ,(iap(1),iaz(1,1)),(iat(1),iaz(1,2))
!----------------------------------------------------------------------
! xpp(ip),xmp(ip),xpt(it),xmt(it): x+,x- of projectile ip / target it
! xxp(ip),xyp(ip),xxt(it),xyt(it): px,py of projectile ip / target it
! idp(ip),idt(it): diquark counter
! ivp(ip),ivt(it): valenve quark counter
! isp(ip),ist(it): sea quark counter
! iap(ip),iat(it): anti valence quark counter
!----------------------------------------------------------------------
double precision xpmn,xtmn,xpmx,xtmx,xppmx,xptmx,xmpmx,xmtmx
* ,xppmn ,xptmn,xmpmn,xmtmn,xpos,xtos
double precision xzmn,xzmx,xpzmx,xmzmx
* ,xpzmn ,xmzmn,xzos
common/cemsr1/xzmn(mamx,2),xzmx(mamx,2)
* ,xpzmx(mamx,2)
* ,xmzmx(mamx,2)
* ,xpzmn(mamx,2)
* ,xmzmn(mamx,2)
* ,xzos(mamx,2)
dimension xpmn(mamx),xtmn(mamx),xpmx(mamx),xtmx(mamx)
* ,xppmx(mamx),xptmx(mamx)
* ,xmpmx(mamx),xmtmx(mamx)
* ,xppmn(mamx),xptmn(mamx)
* ,xmpmn(mamx),xmtmn(mamx)
* ,xpos(mamx),xtos(mamx)
equivalence ( xpmn(1), xzmn(1,1)),( xtmn(1), xzmn(1,2))
* ,( xpmx(1), xzmx(1,1)),( xtmx(1), xzmx(1,2))
* ,(xppmx(1),xpzmx(1,1)),(xptmx(1),xpzmx(1,2))
* ,(xmpmx(1),xmzmx(1,1)),(xmtmx(1),xmzmx(1,2))
* ,(xppmn(1),xpzmn(1,1)),(xptmn(1),xpzmn(1,2))
* ,(xmpmn(1),xmzmn(1,1)),(xmtmn(1),xmzmn(1,2))
* ,( xpos(1), xzos(1,1)),( xtos(1), xzos(1,2))
!----------------------------------------------------------------------
! xpmn(ip),xtmn(it),xpmx(ip),xtmx(it): x proj/targ minimum/maximum
! xppmx(ip),xptmx(it),xmpmx(ip),xmtmx(it): x+/x- proj/targ maximum
! xppmn(ip),xptmn(it),xmpmn(ip),xmtmn(it): x+/x- proj/targ minimum
! xpos(ip),xtos(it): x value for on shell condition proj/targ
!----------------------------------------------------------------------
common/cemsr3/kolp(mamx),kolt(mamx),npp(mamx),npt(mamx)
common/cemsr4/iez(mamx,2),ifz(mamx,2)
dimension iep(mamx),iet(mamx),ifp(mamx),ift(mamx)
equivalence (iep(1),iez(1,1)),(iet(1),iez(1,2))
* ,(ifp(1),ifz(1,1)),(ift(1),ifz(1,2))
!----------------------------------------------------------------------
! kolp(ip),kolt(it): number of cut Pomerons of proj ip / targ it
! iep(ip),iet(it): excitation type of proj ip / targ it
! (0=none,1=inelastic,2=diffractive)
! ifp(ip),ift(it): remnant flip flag proj/targ (0=no,1=yes)
! if3dp(ip), if3dp(it): triple pomeron diffraction (if 1)
!----------------------------------------------------------------------
!----------------------------------------------------------------------
! transfer from emsini
!----------------------------------------------------------------------
double precision amzmn,ampmn,amtmn,ammn,amemn,amemx,amprmn,xis
&,delxi,ddelx,r3pompi,r3pommi,r3pompi3,r3pommi3
parameter (ntypmx=19)
common/cems12/ammn(0:ntypmx),amprmn(0:ntypmx)
common/cemsr6/amzmn(0:1,2),amemn(0:1,0:6),amemx(0:2)
dimension ampmn(0:1),amtmn(0:1)
equivalence (ampmn(0),amzmn(0,1)), (amtmn(0),amzmn(0,2))
common/cemsr13/xis,delxi,ddelx,r3pompi,r3pommi
&,r3pompi3,r3pommi3,ucfpro,ucftar
!----------------------------------------------------------------------
! STORAGE
!----------------------------------------------------------------------
double precision
*xxpr,xxpr0,yx,yx0,xxppr,xxmpr,xxppr0,xxmpr0
*,xmtx,xmtx0,xmtlx,xmtlx0
*,xppx,xppx0,xpplx,xpplx0
*,xppst,xmpst,xposst,xpest,xppstx0,xmpstx0,xppstx,xmpstx
*,xmtst,xptst,xtosst,xmest,xmtstx0,xptstx0,xmtstx,xptstx
dimension nprx(0:3),nprx0(0:3),iepst(mamx),ietst(mamx)
*,xppst(mamx),xmpst(mamx),xposst(mamx),xpest(mamx)
*,xmtst(mamx),xptst(mamx),xtosst(mamx),xmest(mamx)
common/emsstore/
*xxpr,xxpr0,yx,yx0,xxppr,xxmpr,xxppr0,xxmpr0
*,xmtx,xmtx0,xmtlx,xmtlx0
*,xppx,xppx0,xpplx,xpplx0
*,itx,itx0,idx,idx0,iepst,ietst
*,npplx0,nptlx0,npplx,nptlx
*,nppx,nppx0,nptx,nptx0,nprx,nprx0,nprtx,nprtx0
*,xppst,xmpst,xposst,xpest,xppstx0,xmpstx0,xppstx,xmpstx
*,xmtst,xptst,xtosst,xmest,xmtstx0,xptstx0,xmtstx,xptstx
!----------------------------------------------------------------------
! utilities
!----------------------------------------------------------------------
double precision facto,fctrl
common/factori/facto(0:npommx),fctrl(0:npommx),nfctrl