1 subroutine ABFKWPevolve(xin,qin,pdf)
2 include 'parmsetup.inc'
5 real*8 xin,qin,pdf(-6:6),xval(45),qcdl4,qcdl5
6 real*8 upv,dnv,usea,dsea,str,chm,bot,top,glu
7 real*8 calcpi(8,20,25,3),calcpio(8,20,25),parpi(40,3)
8 common /ABFKWP/ CALCPI,CALCPIO,PARPI,lastmem
9 character*16 name(nmxset)
10 integer nmem(nmxset),ndef(nmxset),mmem
11 common/NAME/name,nmem,ndef,mmem
16 if(iimem.eq.0) iimem = 1
18 call ABFKWxx(iimem,xin,qin,upv,dnv,usea,dsea, str,chm,glu)
37 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
38 entry ABFKWPread(nset)
39 read(1,*)nmem(nset),ndef(nset)
43 read(1,*)(parpi(k,j),k=1,4)
44 read(1,*)(parpi(k,j),k=5,8)
45 read(1,*)(parpi(k,j),k=9,12)
46 read(1,*)(parpi(k,j),k=13,16)
47 read(1,*)(parpi(k,j),k=17,20)
48 read(1,*)(parpi(k,j),k=21,24)
49 read(1,*)(parpi(k,j),k=25,28)
50 read(1,*)(parpi(k,j),k=29,32)
51 read(1,*)(parpi(k,j),k=33,36)
52 read(1,*)(parpi(k,j),k=37,40)
55 read(1,*)(CALCPI(m,k,l,j),m=1,4)
56 read(1,*)(CALCPI(m,k,l,j),m=5,8)
62 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
63 entry ABFKWPalfa(alfas,qalfa)
65 call GetOrderAsM(iset,iord)
66 call Getlam4M(iset,imem,qcdl4)
67 call Getlam5M(iset,imem,qcdl5)
68 call aspdflib(alfas,Qalfa,iord,qcdl5)
71 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
72 entry ABFKWPinit(Eorder,Q2fit)
75 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
82 ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
87 * Revision 1.2 2005/10/07 15:15:05 whalley
88 * Changes to most files for V5 - multiset initializations
90 * Revision 1.1.1.1 2005/05/06 14:54:43 whalley
91 * Initial CVS import of the LHAPDF code and data sets
93 * Revision 1.1.1.2 1996/10/30 08:27:26 cernlib
96 * Revision 1.1.1.1 1996/04/12 15:28:53 plothow
100 SUBROUTINE ABFKWxx(imem,DX,DQ,DUPV,DDNV,DUSEA,DDSEA,DSTR,DCHM,DGL)
102 + PARPI(40,3),CALCPI(8,20,25,3),CALCPIO(8,20,25),ZEROD,
103 + DX,DQ,DUPV,DDNV,DUSEA,DDSEA,DSTR,DCHM,DGL
104 REAL X, Q, UPV, DNV, USEA, DSEA, STR, CHM, GL
106 common /ABFKWP/CALCPI,CALCPIO,PARPI,lastmem
108 c COMMON/W5051Ixx/CALCPIO
111 C----------------------------------------------------------------------
113 SAVE ISTART,OWLAM2,Q02PI
115 if(imem.ne.lastmem) then
119 IF (ISTART.EQ.0) THEN
124 11 CALCPIO(M,I,K) = CALCPI(M,I,K,imem)
131 C the conventions are : q(1)=x*u, q(2)=x*d, q(3)=x*str, q(4)=x*usea,
132 C q(5)=x*dsea, q(6)=x*charm, q(7)=x*gluon
141 3 SB= LOG( LOG( MAX(Q02PI,Q2)/OWLAM2)/ LOG(Q02PI/OWLAM2))
142 1 CALL AURPIx(1,0,X,SB,XPDF(1))
143 CALL AURPIx(2,0,X,SB,XPDF(2))
144 CALL AURPIx(3,0,X,SB,XPDF(3))
145 CALL AURPIx(4,0,X,SB,XPDF(4))
146 CALL AURPIx(5,0,X,SB,XPDF(5))
147 CALL AURPIx(8,0,X,SB,XPDF(6))
148 CALL AURPIx(7,0,X,SB,XPDF(7))
150 DUPV=XPDF(1) - XPDF(4)
151 DDNV=XPDF(2) - XPDF(5)
160 c==============================================================
165 * Revision 1.2 2005/10/07 15:15:05 whalley
166 * Changes to most files for V5 - multiset initializations
168 * Revision 1.1.1.1 2005/05/06 14:54:43 whalley
169 * Initial CVS import of the LHAPDF code and data sets
171 * Revision 1.1.1.2 1996/10/30 08:27:36 cernlib
174 * Revision 1.1.1.1 1996/04/12 15:29:03 plothow
179 SUBROUTINE AURPIx(I,NDRV,X,S,ANS)
181 + CALCPI(8,20,25,3),CALCPIO(8,20,25),parpi(40,3)
182 common /ABFKWP/CALCPI,CALCPIO,parpi,lastmem
183 c COMMON/W5051I4/CALCPIO
187 IF(X.GT.0.9985) RETURN
188 IF(I.EQ.3.AND.X.GT.0.95) RETURN
189 IF(I.EQ.8.AND.X.GT.0.95) RETURN
194 F1(L)=CALCPIO(I,IS,KL)
195 F2(L)=CALCPIO(I,IS1,KL)
201 ANS=A1*(S-S2)/(S1-S2)+A2*(S-S1)/(S2-S1)
204 c===============================================================
209 * Revision 1.2 2005/10/07 15:15:05 whalley
210 * Changes to most files for V5 - multiset initializations
212 * Revision 1.1.1.1 2005/05/06 14:54:43 whalley
213 * Initial CVS import of the LHAPDF code and data sets
215 * Revision 1.1.1.2 1996/10/30 08:27:34 cernlib
218 * Revision 1.1.1.1 1996/04/12 15:29:02 plothow
223 FUNCTION AUGETFV(X,FVL)
224 C LOGARITHMIC INTERPOLATOR - WATCH OUT FOR NEGATIVE
225 C FUNCTIONS AND/OR X VALUES OUTSIDE THE RANGE 0 TO 1.
226 C NOTE: DIMENSION OF FVL IS OVERWRITTEN BY VALUE USED
228 DIMENSION FVL(25),XGRID(25)
229 DATA NX,XGRID/25,.001,.002,.004,.008,.016,.032,.064,.1,.15,
230 *.2,.25,.3,.35,.4,.45,.5,.55,.6,.65,.7,.75,.8,.85,.9,.95/
233 IF(X.LT.XGRID(I)) GO TO 2
238 ELSE IF(I.GT.23) THEN
244 BXI= LOG(1.-XGRID(I))
246 BXJ= LOG(1.-XGRID(J))
248 BXK= LOG(1.-XGRID(K))
249 FI= LOG(ABS(FVL(I)) +1.E-15)
250 FJ= LOG(ABS(FVL(J)) +1.E-16)
251 FK= LOG(ABS(FVL(K)) +1.E-17)
252 DET=AXI*(BXJ-BXK)+AXJ*(BXK-BXI)+AXK*(BXI-BXJ)
253 ALOGA=(FI*(AXJ*BXK-AXK*BXJ)+FJ*(AXK*BXI-AXI*BXK)+FK*(AXI*BXJ-AXJ*
255 ALPHA=(FI*(BXJ-BXK)+FJ*(BXK-BXI)+FK*(BXI-BXJ))/DET
256 BETA=(FI*(AXK-AXJ)+FJ*(AXI-AXK)+FK*(AXJ-AXI))/DET
257 IF(ABS(ALPHA).GT.99..OR.ABS(BETA).GT.99..OR.ABS(ALOGA).GT.99.)
259 C IF(ALPHA.GT.50..OR.BETA.GT.50.) THEN
260 C WRITE(6,2001) X,FVL
261 C 2001 FORMAT(8E12.4)
262 C WRITE(6,2001) ALPHA,BETA,ALOGA,DET
264 AUGETFV=EXP(ALOGA)*X**ALPHA*(1.-X)**BETA
267 c============================================================