subroutine GRVGevolvep0(xin,qin,p2in,ip2in,pdf) include 'parmsetup.inc' real*8 xin,qin,q2in,p2in,pdf(-6:6),xval(45),qcdl4,qcdl5 real*8 upv,dnv,usea,dsea,str,chm,bot,top,glu,zbot,zchm character*16 name(nmxset) integer nmem(nmxset),ndef(nmxset),mmem common/NAME/name,nmem,ndef,mmem integer nset save call getnset(iset) call getnmem(iset,imem) if(imem.eq.1) then call GRVGALO (xin,qin,upv,dnv,usea,dsea,str,chm,bot,glu) elseif(imem.eq.2.or.imem.eq.0) then q2in = qin*qin c calls GRVGALO for charm and bottom, rest from GRSGALO call GRVGALO(xin,qin,upv,dnv,usea,dsea,str,chm,bot,glu) call GRSGALO(xin,q2in,p2in, + upv,dnv,usea,dsea,str,zchm,zbot,glu) else CONTINUE endif pdf(-6)= 0.0d0 pdf(6)= 0.0d0 pdf(-5)= bot pdf(5 )= bot pdf(-4)= chm pdf(4 )= chm pdf(-3)= str pdf(3 )= str pdf(-2)= usea pdf(2 )= upv pdf(-1)= dsea pdf(1 )= dnv pdf(0 )= glu return ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc entry GRVGevolvep1(xin,qin,p2in,ip2in,pdf) if(imem.eq.1) then call GRVGAH0 (xin,qin,upv,dnv,usea,dsea,str,chm,bot,glu) elseif(imem.eq.2 .or. imem.eq.0) then call GRVGAHO (xin,qin,upv,dnv,usea,dsea,str,chm,bot,glu) else CONTINUE endif pdf(-6)= 0.0d0 pdf(6)= 0.0d0 pdf(-5)= bot pdf(5 )= bot pdf(-4)= chm pdf(4 )= chm pdf(-3)= str pdf(3 )= str pdf(-2)= usea pdf(2 )= upv pdf(-1)= dsea pdf(1 )= dnv pdf(0 )= glu return ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc entry GRVGread(nset) read(1,*)nmem(nset),ndef(nset) return c ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc entry GRVGalfa(alfas,qalfa) call getnset(iset) call GetOrderAsM(iset,iord) call Getlam4M(iset,imem,qcdl4) call Getlam5M(iset,imem,qcdl5) call aspdflib(alfas,Qalfa,iord,qcdl5) return c ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc entry GRVGinit(Eorder,Q2fit) return c ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc entry GRVGpdf(mem) call getnset(iset) call setnmem(iset,mem) c imem = mem return c 1000 format(5e13.5) end c SUBROUTINE GRVGAH0 (ZX,ZQ,ZUV,ZDV,ZUB,ZDB,ZSB,ZCB,ZBB,ZGL) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * G R V - P H O T O N - P A R A M E T R I Z A T I O N S * * * * FOR A DETAILED EXPLANATION SEE : * * M. GLUECK, E.REYA, A.VOGT: DO-TH 91/31 * * * * THE OUTPUT IS ALWAYS 1./ ALPHA(EM) * X * PARTON DENSITY * * output modified by HPB to be always X * PARTON DENSITY * * * * THE PARAMETRIZATIONS ARE FITTED TO THE PARTON DISTRIBUTIONS * * FOR Q ** 2 BETWEEN MU ** 2 (= 0.25 / 0.30 GEV ** 2 IN LO * * / HO) AND 1.E6 GEV ** 2 AND FOR X BETWEEN 1.E-5 AND 1. * * * * HEAVY QUARK THRESHOLDS Q(H) = M(H) : * * M(C) = 1.5, M(B) = 4.5, M(T) = 100 GEV * * * * CORRESPONDING LAMBDA(F) VALUES FOR F ACTIVE FLAVOURS : * * LO : LAMBDA(3) = 0.232, LAMBDA(4) = 0.200, * * LAMBDA(5) = 0.153, LAMBDA(6) = 0.082 GEV * * HO : LAMBDA(3) = 0.248, LAMBDA(4) = 0.200, * * LAMBDA(5) = 0.131, LAMBDA(6) = 0.053 GEV * * * * HO DISTRIBUTIONS REFER TO THE DIS(GAMMA) SCHEME, SEE : * * M. GLUECK, E.REYA, A.VOGT: DO-TH 91/26 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * C IMPLICIT REAL (A - Y) double precision + ZX,ZQ,ZUV,ZDV,ZUB,ZDB,ZSB,ZCB,ZBB,ZGL REAL X, Q DATA ALPHEM/7.29927D-3/ X = ZX Q = ZQ MU2 = 0.3 LAM2 = 0.248 * 0.248 Q2 = Q*Q S = ALOG (ALOG(Q2/LAM2) / ALOG(MU2/LAM2)) SS = SQRT (S) S2 = S * S C...X * U = X * UBAR : AL = 1.447 BE = 0.848 AK = 0.527 + 0.200 * S - 0.107 * S2 BK = 7.106 - 0.310 * SS - 0.786 * S2 AG = 0.197 + 0.533 * S BG = 0.062 - 0.398 * S + 0.109 * S2 C = 0.755 * S - 0.112 * S2 D = 0.318 - 0.059 * S E = 4.225 + 1.708 * S ES = 1.752 + 0.866 * S U0 = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZUV = U0 * ALPHEM ZUB = ZUV C...X * D = X * DBAR : AL = 1.424 BE = 0.770 AK = 0.500 + 0.067 * SS - 0.055 * S2 BK = 0.376 - 0.453 * SS + 0.405 * S2 AG = 0.156 + 0.184 * S BG = 0.0 - 0.528 * S + 0.146 * S2 C = 0.121 + 0.092 * S D = 0.379 - 0.301 * S + 0.081 * S2 E = 4.346 + 1.638 * S ES = 1.645 + 1.016 * S D0 = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZDV = D0 * ALPHEM ZDB = ZDV C...X * G : AL = 0.661 BE = 0.793 AK = 0.537 - 0.600 * SS BK = 6.389 - 0.953 * S2 AG = 0.558 - 0.383 * SS + 0.261 * S2 BG = 0.0 - 0.305 * S C = -0.222 + 0.078 * S2 D = 0.153 + 0.978 * S - 0.209 * S2 E = 1.429 + 1.772 * S ES = 3.331 + 0.806 * S G0 = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZGL = G0 * ALPHEM C...X * S = X * SBAR : SF = 0.0 AL = 1.578 BE = 0.863 AK = 0.622 + 0.332 * S - 0.300 * S2 BK = 2.469 AG = 0.211 - 0.064 * SS - 0.018 * S2 BG = -0.215 + 0.122 * S C = 0.153 D = 0.0 + 0.253 * S - 0.081 * S2 E = 3.990 + 2.014 * S ES = 1.720 + 0.986 * S S0 = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZSB = S0 * ALPHEM C...X * C = X * CBAR : SF = 0.820 AL = 0.929 BE = 0.381 AK = 1.228 - 0.231 * S BK = 3.806 - 0.337 * S2 AG = 0.932 + 0.150 * S BG = -0.906 C = 1.133 D = 0.0 + 0.138 * S - 0.028 * S2 E = 5.588 + 0.628 * S ES = 2.665 + 1.054 * S C0 = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZCB = C0 * ALPHEM C...X * B = X * BBAR : SF = 1.297 AL = 0.970 BE = 0.207 AK = 1.719 - 0.292 * S BK = 0.928 + 0.096 * S AG = 0.845 + 0.178 * S BG = -2.310 C = 1.558 D = -0.191 + 0.151 * S E = 6.089 + 0.282 * S ES = 3.379 + 1.062 * S B0 = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZBB = B0 * ALPHEM C RETURN END ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc SUBROUTINE GRVGAHO (ZX,ZQ,ZUV,ZDV,ZUB,ZDB,ZSB,ZCB,ZBB,ZGL) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * G R V - P H O T O N - P A R A M E T R I Z A T I O N S * * * * FOR A DETAILED EXPLANATION SEE : * * M. GLUECK, E.REYA, A.VOGT: DO-TH 91/31 * * * * THE OUTPUT IS ALWAYS 1./ ALPHA(EM) * X * PARTON DENSITY * * output modified by HPB to be always X * PARTON DENSITY * * * * THE PARAMETRIZATIONS ARE FITTED TO THE PARTON DISTRIBUTIONS * * FOR Q ** 2 BETWEEN MU ** 2 (= 0.25 / 0.30 GEV ** 2 IN LO * * / HO) AND 1.E6 GEV ** 2 AND FOR X BETWEEN 1.E-5 AND 1. * * * * HEAVY QUARK THRESHOLDS Q(H) = M(H) : * * M(C) = 1.5, M(B) = 4.5, M(T) = 100 GEV * * * * CORRESPONDING LAMBDA(F) VALUES FOR F ACTIVE FLAVOURS : * * LO : LAMBDA(3) = 0.232, LAMBDA(4) = 0.200, * * LAMBDA(5) = 0.153, LAMBDA(6) = 0.082 GEV * * HO : LAMBDA(3) = 0.248, LAMBDA(4) = 0.200, * * LAMBDA(5) = 0.131, LAMBDA(6) = 0.053 GEV * * * * HO DISTRIBUTIONS REFER TO THE DIS(GAMMA) SCHEME, SEE : * * M. GLUECK, E.REYA, A.VOGT: DO-TH 91/26 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * C IMPLICIT REAL (A - Y) double precision + ZX,ZQ,ZUV,ZDV,ZUB,ZDB,ZSB,ZCB,ZBB,ZGL DATA ALPHEM/7.29927D-3/ REAL X, Q X = ZX Q = ZQ MU2 = 0.3 LAM2 = 0.248 * 0.248 Q2 = Q*Q S = ALOG (ALOG(Q2/LAM2) / ALOG(MU2/LAM2)) SS = SQRT (S) S2 = S * S C...X * U = X * UBAR : AL = 0.583 BE = 0.688 AK = 0.449 - 0.025 * S - 0.071 * S2 BK = 5.060 - 1.116 * SS AG = 0.103 BG = 0.319 + 0.422 * S C = 1.508 + 4.792 * S - 1.963 * S2 D = 1.075 + 0.222 * SS - 0.193 * S2 E = 4.147 + 1.131 * S ES = 1.661 + 0.874 * S UH = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZUV = UH * ALPHEM ZUB = ZUV C...X * D = X * DBAR : AL = 0.591 BE = 0.698 AK = 0.442 - 0.132 * S - 0.058 * S2 BK = 5.437 - 1.916 * SS AG = 0.099 BG = 0.311 - 0.059 * S C = 0.800 + 0.078 * S - 0.100 * S2 D = 0.862 + 0.294 * SS - 0.184 * S2 E = 4.202 + 1.352 * S ES = 1.841 + 0.990 * S DH = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZDV = DH * ALPHEM ZDB = ZDV C...X * G : AL = 1.161 BE = 1.591 AK = 0.530 - 0.742 * SS + 0.025 * S2 BK = 5.662 AG = 0.533 - 0.281 * SS + 0.218 * S2 BG = 0.025 - 0.518 * S + 0.156 * S2 C = -0.282 + 0.209 * S2 D = 0.107 + 1.058 * S - 0.218 * S2 E = 0.0 + 2.704 * S ES = 3.071 - 0.378 * S GH = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZGL = GH * ALPHEM C...X * S = X * SBAR : SF = 0.0 AL = 0.635 BE = 0.456 AK = 1.770 - 0.735 * SS - 0.079 * S2 BK = 3.832 AG = 0.084 - 0.023 * S BG = 0.136 C = 2.119 - 0.942 * S + 0.063 * S2 D = 1.271 + 0.076 * S - 0.190 * S2 E = 4.604 + 0.737 * S ES = 1.641 + 0.976 * S SH = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZSB = SH * ALPHEM C...X * C = X * CBAR : SF = 0.820 AL = 0.926 BE = 0.152 AK = 1.142 - 0.175 * S BK = 3.276 AG = 0.504 + 0.317 * S BG = -0.433 C = 3.334 D = 0.398 + 0.326 * S - 0.107 * S2 E = 5.493 + 0.408 * S ES = 2.426 + 1.277 * S CH = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZCB = CH * ALPHEM C...X * B = X * BBAR : SF = 1.297 AL = 0.969 BE = 0.266 AK = 1.953 - 0.391 * S BK = 1.657 - 0.161 * S AG = 1.076 + 0.034 * S BG = -2.015 C = 1.662 D = 0.353 + 0.016 * S E = 5.713 + 0.249 * S ES = 3.456 + 0.673 * S BH = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZBB = BH * ALPHEM c RETURN END cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc SUBROUTINE GRVGALO (ZX,ZQ,ZUV,ZDV,ZUB,ZDB,ZSB,ZCB,ZBB,ZGL) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * G R V - P H O T O N - P A R A M E T R I Z A T I O N S * * * * FOR A DETAILED EXPLANATION SEE : * * M. GLUECK, E.REYA, A.VOGT: DO-TH 91/31 * * * * THE OUTPUT IS ALWAYS 1./ ALPHA(EM) * X * PARTON DENSITY * * output modified by HPB to be always X * PARTON DENSITY * * * * THE PARAMETRIZATIONS ARE FITTED TO THE PARTON DISTRIBUTIONS * * FOR Q ** 2 BETWEEN MU ** 2 (= 0.25 / 0.30 GEV ** 2 IN LO * * / HO) AND 1.E6 GEV ** 2 AND FOR X BETWEEN 1.E-5 AND 1. * * * * HEAVY QUARK THRESHOLDS Q(H) = M(H) : * * M(C) = 1.5, M(B) = 4.5, M(T) = 100 GEV * * * * CORRESPONDING LAMBDA(F) VALUES FOR F ACTIVE FLAVOURS : * * LO : LAMBDA(3) = 0.232, LAMBDA(4) = 0.200, * * LAMBDA(5) = 0.153, LAMBDA(6) = 0.082 GEV * * HO : LAMBDA(3) = 0.248, LAMBDA(4) = 0.200, * * LAMBDA(5) = 0.131, LAMBDA(6) = 0.053 GEV * * * * HO DISTRIBUTIONS REFER TO THE DIS(GAMMA) SCHEME, SEE : * * M. GLUECK, E.REYA, A.VOGT: DO-TH 91/26 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * C IMPLICIT REAL (A - Y) double precision + ZX,ZQ,ZUV,ZDV,ZUB,ZDB,ZSB,ZCB,ZBB,ZGL REAL X, Q DATA ALPHEM/7.29927D-3/ X = ZX Q = ZQ MU2 = 0.25 LAM2 = 0.232 * 0.232 Q2 = Q*Q S = ALOG (ALOG(Q2/LAM2) / ALOG(MU2/LAM2)) SS = SQRT (S) S2 = S * S C...X * U = X * UBAR : AL = 1.717 BE = 0.641 AK = 0.500 - 0.176 * S BK = 15.00 - 5.687 * SS - 0.552 * S2 AG = 0.235 + 0.046 * SS BG = 0.082 - 0.051 * S + 0.168 * S2 C = 0.0 + 0.459 * S D = 0.354 - 0.061 * S E = 4.899 + 1.678 * S ES = 2.046 + 1.389 * S UL = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZUV = UL * ALPHEM ZUB = ZUV C...X * D = X * DBAR : AL = 1.549 BE = 0.782 AK = 0.496 + 0.026 * S BK = 0.685 - 0.580 * SS + 0.608 * S2 AG = 0.233 + 0.302 * S BG = 0.0 - 0.818 * S + 0.198 * S2 C = 0.114 + 0.154 * S D = 0.405 - 0.195 * S + 0.046 * S2 E = 4.807 + 1.226 * S ES = 2.166 + 0.664 * S DL = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZDV = DL * ALPHEM ZDB = ZDV C...X * G : AL = 0.676 BE = 1.089 AK = 0.462 - 0.524 * SS BK = 5.451 - 0.804 * S2 AG = 0.535 - 0.504 * SS + 0.288 * S2 BG = 0.364 - 0.520 * S C = -0.323 + 0.115 * S2 D = 0.233 + 0.790 * S - 0.139 * S2 E = 0.893 + 1.968 * S ES = 3.432 + 0.392 * S GL = GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZGL = GL * ALPHEM C...X * S = X * SBAR : SF = 0.0 AL = 1.609 BE = 0.962 AK = 0.470 - 0.099 * S2 BK = 3.246 AG = 0.121 - 0.068 * SS BG = -0.090 + 0.074 * S C = 0.062 + 0.034 * S D = 0.0 + 0.226 * S - 0.060 * S2 E = 4.288 + 1.707 * S ES = 2.122 + 0.656 * S SL = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZSB = SL * ALPHEM C...X * C = X * CBAR : SF = 0.888 AL = 0.970 BE = 0.545 AK = 1.254 - 0.251 * S BK = 3.932 - 0.327 * S2 AG = 0.658 + 0.202 * S BG = -0.699 C = 0.965 D = 0.0 + 0.141 * S - 0.027 * S2 E = 4.911 + 0.969 * S ES = 2.796 + 0.952 * S CL = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZCB = CL * ALPHEM C...X * B = X * BBAR : SF = 1.351 AL = 1.016 BE = 0.338 AK = 1.961 - 0.370 * S BK = 0.923 + 0.119 * S AG = 0.815 + 0.207 * S BG = -2.275 C = 1.480 D = -0.223 + 0.173 * S E = 5.426 + 0.623 * S ES = 3.819 + 0.901 * S BL = GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) ZBB = BL * ALPHEM C RETURN END cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc C----------------------------------------------------------------------- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * G R S - LO - VIRTUAL PHOTON PARAMETRIZATIONS * * * * FOR A DETAILED EXPLANATION SEE * * M. GLUECK, E.REYA, M. STRATMANN : * * PHYS. REV. D51 (1995) 3220 * * * * THE PARAMETRIZATIONS ARE FITTED TO THE EVOLVED PARTONS FOR * * Q**2 / GEV**2 BETWEEN 0.6 AND 5.E4 * * AND (!) Q**2 > 5 P**2 * * P**2 / GEV**2 BETWEEN 0.0 AND 10. * * P**2 = 0 <=> REAL PHOTON * * X BETWEEN 1.E-4 AND 1. * * * * HEAVY QUARK THRESHOLDS Q(H) = M(H) IN THE BETA FUNCTION : * * M(C) = 1.5, M(B) = 4.5 * * CORRESPONDING LAMBDA(F) VALUES IN GEV FOR Q**2 > M(H)**2 : * * LO : LAMBDA(3) = 0.232, LAMBDA(4) = 0.200, * * LAMBDA(5) = 0.153, * * THE NUMBER OF ACTIVE QUARK FLAVOURS IS NF = 3 EVERYWHERE * * EXCEPT IN THE BETA FUNCTION, I.E. THE HEAVY QUARKS C,B,... * * ARE NOT PRESENT AS PARTONS IN THE Q2-EVOLUTION. * * * * PLEASE REPORT ANY STRANGE BEHAVIOUR TO : * * STRAT@HAL1.PHYSIK.UNI-DORTMUND.DE * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *...INPUT PARAMETERS : * * X = MOMENTUM FRACTION * Q2 = SCALE Q**2 IN GEV**2 * P2 = VIRTUALITY OF THE PHOTON IN GEV**2 * *...OUTPUT (ALWAYS X TIMES THE DISTRIBUTION DIVIDED BY ALPHA_EM) : *...OUTPUT (ALWAYS X TIMES THE DISTRIBUTION) : modified H.P.-B. 10.9.1996 * ******************************************************** SUBROUTINE GRSGALO(DX,DQ2,DP2, + DUPV,DDNV,DUSEA,DDSEA,DSTR,DCHM,DBOT,DGL) C subroutine grsgalo(x,q2,p2,ugam,dgam,sgam,ggam) implicit real*8 (a-h,o-z) double precision + x, q2, p2, mu2, lam2, + ugam, dgam, sgam, ggam, + DUPV,DDNV,DUSEA,DDSEA,DSTR,DCHM,DBOT,DGL C dimension u1(40),ds1(40),g1(40) dimension ud2(20),s2(20),g2(20) dimension up0(20),dsp0(20),gp0(20) DATA ALPHEM/7.29927D-3/ c data u1/-0.139d0,0.783d0,0.132d0,0.087d0,0.003d0,-0.0134d0, + 0.009d0,-0.017d0,0.092d0,-0.516d0,-0.085d0,0.439d0, + 0.013d0,0.108d0,-0.019d0,-0.272d0,-0.167d0,0.138d0, + 0.076d0,0.026d0,-0.013d0,0.27d0,0.107d0,-0.097d0,0.04d0, + 0.064d0,0.011d0,0.002d0,0.057d0,-0.057d0,0.162d0, + -0.172d0,0.124d0,-0.016d0,-0.065d0,0.044d0,-1.009d0, + 0.622d0,0.227d0,-0.184d0/ data ds1/0.033d0,0.007d0,-0.0516d0,0.12d0,0.001d0,-0.013d0, + 0.018d0,-0.028d0,0.102d0,-0.595d0,-0.114d0,0.669d0, + 0.022d0,0.001d0,-0.003d0,-0.0583d0,-0.041d0,0.035d0, + 0.009d0,0.009d0,0.004d0,0.054d0,0.025d0,-0.02d0, + 0.007d0,0.021d0,0.01d0,0.004d0,-0.067d0,0.06d0,-0.148d0, + 0.13d0,0.032d0,-0.009d0,-0.06d0,0.036d0,-0.39d0,0.033d0, + 0.245d0,-0.171d0/ data g1/0.025d0,0.d0,-0.018d0,0.112d0,-0.025d0,0.177d0, + -0.022d0,0.024d0,0.001d0,-0.0104d0,0.d0,0.d0,-1.082d0, + -1.666d0,0.d0,0.086d0,0.d0,0.053d0,0.005d0,-0.058d0, + 0.034d0,0.073d0,1.08d0,1.63d0,-0.0256d0,-0.088d0,0.d0, + 0.d0,-0.004d0,0.016d0,0.007d0,-0.012d0,0.01d0,-0.673d0, + 0.126d0,-0.167d0,0.032d0,-0.227d0,0.086d0,-0.159d0/ data ud2/0.756d0,0.187d0,0.109d0,-0.163d0,0.002d0,0.004d0, + 0.054d0,-0.039d0,22.53d0,-21.02d0,5.608d0,0.332d0, + -0.008d0,-0.021d0,0.381d0,0.572d0,4.774d0,1.436d0, + -0.614d0,3.548d0/ data s2/0.902d0,0.182d0,0.271d0,-0.346d0,0.017d0,-0.01d0, + -0.011d0,0.0065d0,17.1d0,-13.29d0,6.519d0,0.031d0, + -0.0176d0,0.003d0,1.243d0,0.804d0,4.709d0,1.499d0, + -0.48d0,3.401d0/ data g2/0.364d0,1.31d0,0.86d0,-0.254d0,0.611d0,0.008d0, + -0.097d0,-2.412d0,-0.843d0,2.248d0,-0.201d0,1.33d0, + 0.572d0,0.44d0,1.233d0,0.009d0,0.954d0,1.862d0,3.791d0, + -0.079d0/ data up0/1.551d0,0.105d0,1.089d0,-0.172d0,3.822d0,-2.162d0, + 0.533d0,-0.467d0,-0.412d0,0.2d0,0.377d0,0.299d0,0.487d0, + 0.0766d0,0.119d0,0.063d0,7.605d0,0.234d0,-0.567d0, + 2.294d0/ data dsp0/2.484d0,1.214d0,1.088d0,-0.1735d0,4.293d0, + -2.802d0,0.5975d0,-0.1193d0,-0.0872d0,0.0418d0,0.128d0, + 0.0337d0,0.127d0,0.0135d0,0.14d0,0.0423d0,6.946d0, + 0.814d0,1.531d0,0.124d0/ data gp0/1.682d0,1.1d0,0.5888d0,-0.4714d0,0.5362d0,0.0127d0, + -2.438d0,0.03399d0,0.07825d0,0.05842d0,0.08393d0,2.348d0, + -0.07182d0,1.084d0,0.3098d0,-0.07514d0,3.327d0,1.1d0, + 2.264d0,0.2675d0/ c save u1,ds1,g1,ud2,s2,g2,up0,dsp0,gp0 c x = DX q = SQRT(DQ2) q2 = DQ2 p2 = DP2 mu2=0.25d0 lam2=0.232d0*0.232d0 c if(p2.le.0.25d0) then s=log(log(q2/lam2)/log(mu2/lam2)) lp1=0.d0 lp2=0.d0 else if(q2.lt.p2) then write(*,1000) 1000 format + (' WARNING: GRSGALO has been called with Q2 < P2 !',/, + ' GRSGALO is about to blow up, therefore',/, + ' Q2 is set equal to P2') q2=p2 endif s=log(log(q2/lam2)/log(p2/lam2)) lp1=log(p2/mu2)*log(p2/mu2) lp2=log(p2/mu2+log(p2/mu2)) endif c alp=up0(1)+lp1*u1(1)+lp2*u1(2) bet=up0(2)+lp1*u1(3)+lp2*u1(4) a=up0(3)+lp1*u1(5)+lp2*u1(6)+ + (up0(4)+lp1*u1(7)+lp2*u1(8))*s b=up0(5)+lp1*u1(9)+lp2*u1(10)+ + (up0(6)+lp1*u1(11)+lp2*u1(12))*s**0.5+ + (up0(7)+lp1*u1(13)+lp2*u1(14))*s**2 gb=up0(8)+lp1*u1(15)+lp2*u1(16)+ + (up0(9)+lp1*u1(17)+lp2*u1(18))*s+ + (up0(10)+lp1*u1(19)+lp2*u1(20))*s**2 ga=up0(11)+lp1*u1(21)+lp2*u1(22)+ + (up0(12)+lp1*u1(23)+lp2*u1(24))*s**0.5 gc=up0(13)+lp1*u1(25)+lp2*u1(33)+ + (up0(14)+lp1*u1(26)+lp2*u1(34))*s gd=up0(15)+lp1*u1(27)+lp2*u1(35)+ + (up0(16)+lp1*u1(28)+lp2*u1(36))*s ge=up0(17)+lp1*u1(29)+lp2*u1(37)+ + (up0(18)+lp1*u1(30)+lp2*u1(38))*s gep=up0(19)+lp1*u1(31)+lp2*u1(39)+ + (up0(20)+lp1*u1(32)+lp2*u1(40))*s upart1=grsf2(x,s,alp,bet,a,b,ga,gb,gc,gd,ge,gep) c alp=dsp0(1)+lp1*ds1(1)+lp2*ds1(2) bet=dsp0(2)+lp1*ds1(3)+lp2*ds1(4) a=dsp0(3)+lp1*ds1(5)+lp2*ds1(6)+ + (dsp0(4)+lp1*ds1(7)+lp2*ds1(8))*s b=dsp0(5)+lp1*ds1(9)+lp2*ds1(10)+ + (dsp0(6)+lp1*ds1(11)+lp2*ds1(12))*s**0.5+ + (dsp0(7)+lp1*ds1(13)+lp2*ds1(14))*s**2 gb=dsp0(8)+lp1*ds1(15)+lp2*ds1(16)+ + (dsp0(9)+lp1*ds1(17)+lp2*ds1(18))*s+ + (dsp0(10)+lp1*ds1(19)+lp2*ds1(20))*s**2 ga=dsp0(11)+lp1*ds1(21)+lp2*ds1(22)+ + (dsp0(12)+lp1*ds1(23)+lp2*ds1(24))*s gc=dsp0(13)+lp1*ds1(25)+lp2*ds1(33)+ + (dsp0(14)+lp1*ds1(26)+lp2*ds1(34))*s gd=dsp0(15)+lp1*ds1(27)+lp2*ds1(35)+ + (dsp0(16)+lp1*ds1(28)+lp2*ds1(36))*s ge=dsp0(17)+lp1*ds1(29)+lp2*ds1(37)+ + (dsp0(18)+lp1*ds1(30)+lp2*ds1(38))*s gep=dsp0(19)+lp1*ds1(31)+lp2*ds1(39)+ + (dsp0(20)+lp1*ds1(32)+lp2*ds1(40))*s dspart1=grsf2(x,s,alp,bet,a,b,ga,gb,gc,gd,ge,gep) c alp=gp0(1)+lp1*g1(1)+lp2*g1(2) bet=gp0(2)+lp1*g1(3)+lp2*g1(4) a=gp0(3)+lp1*g1(5)+lp2*g1(6)+ + (gp0(4)+lp1*g1(7)+lp2*g1(8))*s**0.5 b=gp0(5)+lp1*g1(9)+lp2*g1(10)+ + (gp0(6)+lp1*g1(11)+lp2*g1(12))*s**2 gb=gp0(7)+lp1*g1(13)+lp2*g1(14)+ + (gp0(8)+lp1*g1(15)+lp2*g1(16))*s ga=gp0(9)+lp1*g1(17)+lp2*g1(18)+ + (gp0(10)+lp1*g1(19)+lp2*g1(20))*s**0.5+ + (gp0(11)+lp1*g1(21)+lp2*g1(22))*s**2 gc=gp0(12)+lp1*g1(23)+lp2*g1(24)+ + (gp0(13)+lp1*g1(25)+lp2*g1(26))*s**2 gd=gp0(14)+lp1*g1(27)+lp2*g1(28)+ + (gp0(15)+lp1*g1(29)+lp2*g1(30))*s+ + (gp0(16)+lp1*g1(31)+lp2*g1(32))*s**2 ge=gp0(17)+lp1*g1(33)+lp2*g1(34)+ + (gp0(18)+lp1*g1(35)+lp2*g1(36))*s gep=gp0(19)+lp1*g1(37)+lp2*g1(38)+ + (gp0(20)+lp1*g1(39)+lp2*g1(40))*s gpart1=grsf2(x,s,alp,bet,a,b,ga,gb,gc,gd,ge,gep) c s=log(log(q2/lam2)/log(mu2/lam2)) suppr=1.d0/(1.d0+p2/0.59d0)**2 c alp=ud2(1) bet=ud2(2) a=ud2(3)+ud2(4)*s ga=ud2(5)+ud2(6)*s**0.5 gc=ud2(7)+ud2(8)*s b=ud2(9)+ud2(10)*s+ud2(11)*s**2 gb=ud2(12)+ud2(13)*s+ud2(14)*s**2 gd=ud2(15)+ud2(16)*s ge=ud2(17)+ud2(18)*s gep=ud2(19)+ud2(20)*s udpart2=suppr*grsf1(x,s,alp,bet,a,b,ga,gb,gc,gd,ge,gep) c alp=s2(1) bet=s2(2) a=s2(3)+s2(4)*s ga=s2(5)+s2(6)*s**0.5 gc=s2(7)+s2(8)*s b=s2(9)+s2(10)*s+s2(11)*s**2 gb=s2(12)+s2(13)*s+s2(14)*s**2 gd=s2(15)+s2(16)*s ge=s2(17)+s2(18)*s gep=s2(19)+s2(20)*s spart2=suppr*grsf2(x,s,alp,bet,a,b,ga,gb,gc,gd,ge,gep) c alp=g2(1) bet=g2(2) a=g2(3)+g2(4)*s**0.5 b=g2(5)+g2(6)*s**2 gb=g2(7)+g2(8)*s ga=g2(9)+g2(10)*s**0.5+g2(11)*s**2 gc=g2(12)+g2(13)*s**2 gd=g2(14)+g2(15)*s+g2(16)*s**2 ge=g2(17)+g2(18)*s gep=g2(19)+g2(20)*s gpart2=suppr*grsf1(x,s,alp,bet,a,b,ga,gb,gc,gd,ge,gep) c ugam=upart1+udpart2 DUPV = UGAM * ALPHEM DUSEA = DUPV dgam=dspart1+udpart2 DDNV = DGAM * ALPHEM DDSEA = DDNV sgam=dspart1+spart2 DSTR = SGAM * ALPHEM ggam=gpart1+gpart2 DGL = GGAM * ALPHEM C DCHM = 0.D0 DBOT = 0.D0 c return end ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc FUNCTION GRVGF (X, S, AL, BE, AK, BK, AG, BG, C, D, E, ES) IMPLICIT REAL (A - Z) SX = SQRT (X) LX = ALOG (1./X) GRVGF = (X**AK * (AG + BG * SX + C * X**BK) + S**AL 1 * EXP (-E + SQRT (ES * S**BE * LX))) * (1.- X)**D RETURN END ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc FUNCTION GRVGFS (X, S, SF, AL, BE, AK, BK, AG, BG, C, D, E, ES) IMPLICIT REAL (A - Z) IF (S .LE. SF) THEN GRVGFS = 0.0 ELSE SX = SQRT (X) LX = ALOG (1./X) DS = S - SF GRVGFS = (DS * X**AK * (AG + BG * SX + C * X**BK) + DS**AL 1 * EXP (-E + SQRT (ES * S**BE * LX))) * (1.- X)**D END IF RETURN END ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc double precision function grsf1(x,s,alp,bet,a,b,ga,gb,gc,gd, + ge,gep) implicit real*8 (a-h,o-z) C grsf1=(x**a*(ga+gb*sqrt(x)+gc*x**b)+ + s**alp*exp(-ge+sqrt(gep*s**bet*log(1.d0/x))))* + (1.d0-x)**gd return end ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc double precision function grsf2(x,s,alp,bet,a,b,ga,gb,gc,gd, + ge,gep) implicit real*8 (a-h,o-z) C grsf2=(s*x**a*(ga+gb*sqrt(x)+gc*x**b)+ + s**alp*exp(-ge+sqrt(gep*s**bet*log(1.d0/x))))* + (1.d0-x)**gd return end ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc