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CommitLineData
fe4da5cc 1*
2* $Id$
3*
4* $Log$
5* Revision 1.1.1.2 1996/10/30 08:27:50 cernlib
6* Version 7.04
7*
8* Revision 1.2 1996/10/29 09:30:59 pdflib
9* more LINNUX corrections in DATA statements
10*
11* Revision 1.1.1.1 1996/04/12 15:29:10 plothow
12* Version 7.01
13*
14*
15#include "pdf/pilot.h"
16 FUNCTION Ctq3Pd (Iset, Iprtn, XX, QQ, Irt)
17
18C Returns xf(x,Q) -- the momentum fraction distribution !!
19C Returns valence and sea rather than combined flavor distr.
20
21C Iset : PDF set label
22
23C Iprtn : Parton label: 2, 1 = d_ and u_ valence
24C 0 = gluon
25C -1, ... -6 = u, d, s, c, b, t sea quarks
26
27C XX : Bjorken-x
28C QQ : scale parameter "Q"
29C Irt : Return code
30C 0 : no error
31C 1 : parametrization is slightly negative; reset to 0.0.
32C (This condition happens rarely -- only for large x where the
33C absolute value of the parton distribution is extremely small.)
34
35C IMPLICIT DOUBLE PRECISION (A-H, O-Z)
36C+SEQ, IMPDP.
37
38 PARAMETER (D0=0D0, D1=1D0, D2=2D0, D3=3D0, D4=4D0, D10=1D1)
39 Parameter (Nst = 3)
40
41#include "pdf/expdp.inc"
42 + P012, P34, P5, PDFD
43
44 DIMENSION
45 > Iord(Nst), Isch(Nst), Nqrk(Nst),Alm(Nst)
46 > , Vlm(4:6,Nst), Qms(4:6, Nst)
47 > , Xmn(Nst), Qmn(Nst), Qmx(Nst)
48
49c --------- CTEQ3M
50c
51 DATA
52 > Isch(1), Iord(1), Nqrk(1), Alm(1) / 1, 2, 6, .239 /
53 > ,(Vlm(I,1), I=4,6) / .239, .158, .063 /
54 > ,(Qms(I,1), I=4,6) / 1.60, 5.00, 180.0 /
55 > ,Xmn(1), Qmn(1), Qmx(1) / 1.E-6, 1.60, 1.E4 /
56
57c --------- CTEQ3L
58c
59 DATA
60 > Isch(2), Iord(2), Nqrk(2), Alm(2) / 1, 1, 6, .177 /
61 > ,(Vlm(I,2), I=4,6) / .177, .132, .066 /
62 > ,(Qms(I,2), I=4,6) / 1.60, 5.00, 180.0 /
63 > ,Xmn(2), Qmn(2), Qmx(2) / 1.E-6, 1.60, 1.E4 /
64
65c --------- CTEQ3D
66c
67 DATA
68 > Isch(3), Iord(3), Nqrk(3), Alm(3) / 1, 2, 6, .247 /
69 > ,(Vlm(I,3), I=4,6) / .247, .164, .066 /
70 > ,(Qms(I,3), I=4,6) / 1.60, 5.00, 180.0 /
71 > ,Xmn(3), Qmn(3), Qmx(3) / 1.E-6, 1.60, 1.E4 /
72
73
74 Data Ist, Lp, Qsto / 0, -10, 1.2345 /
75
76 save Ist, Lp, Qsto
77 save SB, SB2, SB3
78
79 X = XX
80 QQ = MAX(QQ,Qmn(iset))
81 Irt = 0
82 if(Iset.eq.Ist .and. Qsto.eq.QQ) then
83C if only change is in x:
84 if (Iprtn.eq.Lp) goto 100
85C if change in flv is within "light" partons:
86 if (Iprtn.ge.-3 .and. Lp.ge.-3) goto 501
87 endif
88
89 Ip = abs(Iprtn)
90C Set up Qi for SB
91 If (Ip .GE. 4) then
92 If (QQ .LE. Qms(Ip, Iset)) Then
93 Ctq3Pd = 0.0
94 Return
95 Endif
96 Qi = Qms(ip, Iset)
97 Else
98 Qi = Qmn(Iset)
99 Endif
100C Use "standard lambda" of parametrization program
101 Alam = Alm (Iset)
102
103 SBL = LOG(QQ/Alam) / LOG(Qi/Alam)
104 SB = LOG (SBL)
105 SB2 = SB*SB
106 SB3 = SB2*SB
107
108 501 Iflv = 3 - Iprtn
109
110 Goto (1,2,3, 311) Iset
111
112 1 Goto(11,12,13,14,15,16,17,18,19)Iflv
113c Ifl = 2
114 11 A0=Exp(-0.7266E+00-0.1584E+01*SB +0.1259E+01*SB2-0.4305E-01*SB3)
115 A1= 0.5285E+00-0.3721E+00*SB +0.5150E+00*SB2-0.1697E+00*SB3
116 A2= 0.4075E+01+0.8282E+00*SB -0.4496E+00*SB2+0.2107E+00*SB3
117 A3= 0.3279E+01+0.5066E+01*SB -0.9134E+01*SB2+0.2897E+01*SB3
118 A4= 0.4399E+00-0.5888E+00*SB +0.4802E+00*SB2-0.1664E+00*SB3
119 A5= 0.3678E+00-0.8929E+00*SB +0.1592E+01*SB2-0.5713E+00*SB3
120 goto 100
121c Ifl = 1
122 12 A0=Exp( 0.2259E+00+0.1237E+00*SB +0.3035E+00*SB2-0.2935E+00*SB3)
123 A1= 0.5085E+00+0.1651E-01*SB -0.3592E-01*SB2+0.2782E-01*SB3
124 A2= 0.3732E+01+0.4901E+00*SB +0.2218E+00*SB2-0.1116E+00*SB3
125 A3= 0.7011E+01-0.6620E+01*SB +0.2557E+01*SB2-0.1360E+00*SB3
126 A4= 0.8969E+00-0.2429E+00*SB +0.1811E+00*SB2-0.6888E-01*SB3
127 A5= 0.8636E-01+0.2558E+00*SB -0.3082E+00*SB2+0.2535E+00*SB3
128 goto 100
129c Ifl = 0
130 13 A0=Exp(-0.2318E+00-0.9779E+00*SB -0.3783E+00*SB2+0.1037E-01*SB3)
131 A1=-0.2916E+00+0.1754E+00*SB -0.1884E+00*SB2+0.6116E-01*SB3
132 A2= 0.5349E+01+0.7460E+00*SB +0.2319E+00*SB2-0.2622E+00*SB3
133 A3= 0.6920E+01-0.3454E+01*SB +0.2027E+01*SB2-0.7626E+00*SB3
134 A4= 0.1013E+01+0.1423E+00*SB -0.1798E+00*SB2+0.1872E-01*SB3
135 A5=-0.5465E-01+0.2303E+01*SB -0.9584E+00*SB2+0.3098E+00*SB3
136 goto 100
137c Ifl = -1
138 14 A0=Exp(-0.2906E+01-0.1069E+00*SB -0.1055E+01*SB2+0.2496E+00*SB3)
139 A1=-0.2875E+00+0.6571E-01*SB -0.1987E-01*SB2-0.1800E-02*SB3
140 A2= 0.9854E+01-0.2715E+00*SB -0.7407E+00*SB2+0.2888E+00*SB3
141 A3= 0.1583E+02-0.7687E+01*SB +0.3428E+01*SB2-0.3327E+00*SB3
142 A4= 0.9763E+00+0.7599E-01*SB -0.2128E+00*SB2+0.6852E-01*SB3
143 A5=-0.8444E-02+0.9434E+00*SB +0.4152E+00*SB2-0.1481E+00*SB3
144 goto 100
145c Ifl = -2
146 15 A0=Exp(-0.2328E+01-0.3061E+01*SB +0.3620E+01*SB2-0.1602E+01*SB3)
147 A1=-0.3358E+00+0.3198E+00*SB -0.4210E+00*SB2+0.1571E+00*SB3
148 A2= 0.8478E+01-0.3112E+01*SB +0.5243E+01*SB2-0.2255E+01*SB3
149 A3= 0.1971E+02+0.3389E+00*SB -0.5268E+01*SB2+0.2099E+01*SB3
150 A4= 0.1128E+01-0.4701E+00*SB +0.7779E+00*SB2-0.3506E+00*SB3
151 A5=-0.4708E+00+0.3341E+01*SB -0.3375E+01*SB2+0.1353E+01*SB3
152 goto 100
153c Ifl = -3
154 16 A0=Exp(-0.3780E+01+0.2499E+01*SB -0.4962E+01*SB2+0.1936E+01*SB3)
155 A1=-0.2639E+00-0.1575E+00*SB +0.3584E+00*SB2-0.1646E+00*SB3
156 A2= 0.8082E+01+0.2794E+01*SB -0.5438E+01*SB2+0.2321E+01*SB3
157 A3= 0.1811E+02-0.2000E+02*SB +0.1951E+02*SB2-0.6904E+01*SB3
158 A4= 0.9822E+00+0.4972E+00*SB -0.8690E+00*SB2+0.3415E+00*SB3
159 A5= 0.1772E+00-0.6078E+00*SB +0.3341E+01*SB2-0.1473E+01*SB3
160 goto 100
161c Ifl = -4
162 17 A0=SB** 0.1122E+01*Exp(-0.4232E+01-0.1808E+01*SB +0.5348E+00*SB2)
163 A1=-0.2824E+00+0.5846E+00*SB -0.7230E+00*SB2+0.2419E+00*SB3
164 A2= 0.5683E+01-0.2948E+01*SB +0.5916E+01*SB2-0.2560E+01*SB3
165 A3= 0.2051E+01+0.4795E+01*SB -0.4271E+01*SB2+0.4174E+00*SB3
166 A4= 0.1737E+00+0.1717E+01*SB -0.1978E+01*SB2+0.6643E+00*SB3
167 A5= 0.8689E+00+0.3500E+01*SB -0.3283E+01*SB2+0.1026E+01*SB3
168 goto 100
169c Ifl = -5
170 18 A0=SB** 0.9906E+00*Exp(-0.1496E+01-0.6576E+01*SB +0.1569E+01*SB2)
171 A1=-0.2140E+00-0.6419E-01*SB -0.2741E-02*SB2+0.3185E-02*SB3
172 A2= 0.5781E+01+0.1049E+00*SB -0.3930E+00*SB2+0.5174E+00*SB3
173 A3=-0.9420E+00+0.5511E+00*SB +0.8817E+00*SB2+0.1903E+01*SB3
174 A4= 0.2418E-01+0.4232E-01*SB -0.1244E-01*SB2-0.2365E-01*SB3
175 A5= 0.7664E+00+0.1794E+01*SB -0.4917E+00*SB2-0.1284E+00*SB3
176 goto 100
177c Ifl = -6
178 19 A0=SB** 0.1000E+01*Exp(-0.8460E+01+0.1154E+01*SB +0.8838E+01*SB2)
179 A1=-0.4316E-01-0.2976E+00*SB +0.3174E+00*SB2-0.1429E+01*SB3
180 A2= 0.4910E+01+0.2273E+01*SB +0.5631E+01*SB2-0.1994E+02*SB3
181 A3= 0.1190E+02-0.2000E+02*SB -0.2000E+02*SB2+0.1292E+02*SB3
182 A4= 0.5771E+00-0.2552E+00*SB +0.7510E+00*SB2+0.6923E+00*SB3
183 A5= 0.4402E+01-0.1627E+01*SB -0.2085E+01*SB2-0.6737E+01*SB3
184 goto 100
185
186 2 Goto(21,22,23,24,25,26,27,28,29)Iflv
187c Ifl = 2
188 21 A0=Exp( 0.1141E+00+0.4764E+00*SB -0.1745E+01*SB2+0.7728E+00*SB3)
189 A1= 0.4275E+00-0.1290E+00*SB +0.3609E+00*SB2-0.1689E+00*SB3
190 A2= 0.3000E+01+0.2946E+01*SB -0.4117E+01*SB2+0.1989E+01*SB3
191 A3=-0.1302E+01+0.2322E+01*SB -0.4258E+01*SB2+0.2109E+01*SB3
192 A4= 0.2586E+01-0.1920E+00*SB -0.3754E+00*SB2+0.2731E+00*SB3
193 A5=-0.2251E+00-0.5374E+00*SB +0.2245E+01*SB2-0.1034E+01*SB3
194 goto 100
195c Ifl = 1
196 22 A0=Exp( 0.1907E+00+0.4205E-01*SB +0.2752E+00*SB2-0.3171E+00*SB3)
197 A1= 0.4611E+00+0.2331E-01*SB -0.3403E-01*SB2+0.3174E-01*SB3
198 A2= 0.3504E+01+0.5739E+00*SB +0.2676E+00*SB2-0.1553E+00*SB3
199 A3= 0.7452E+01-0.6742E+01*SB +0.2849E+01*SB2-0.1964E+00*SB3
200 A4= 0.1116E+01-0.3435E+00*SB +0.2865E+00*SB2-0.1288E+00*SB3
201 A5= 0.6659E-01+0.2714E+00*SB -0.2688E+00*SB2+0.2763E+00*SB3
202 goto 100
203c Ifl = 0
204 23 A0=Exp(-0.7631E+00-0.7241E+00*SB -0.1170E+01*SB2+0.5343E+00*SB3)
205 A1=-0.3573E+00+0.3469E+00*SB -0.3396E+00*SB2+0.9188E-01*SB3
206 A2= 0.5604E+01+0.7458E+00*SB -0.5082E+00*SB2+0.1844E+00*SB3
207 A3= 0.1549E+02-0.1809E+02*SB +0.1162E+02*SB2-0.3483E+01*SB3
208 A4= 0.9881E+00+0.1364E+00*SB -0.4421E+00*SB2+0.2051E+00*SB3
209 A5=-0.9505E-01+0.3259E+01*SB -0.1547E+01*SB2+0.2918E+00*SB3
210 goto 100
211c Ifl = -1
212 24 A0=Exp(-0.2740E+01-0.7987E-01*SB -0.9015E+00*SB2-0.9872E-01*SB3)
213 A1=-0.3909E+00+0.1244E+00*SB -0.4487E-01*SB2+0.1277E-01*SB3
214 A2= 0.9163E+01+0.2823E+00*SB -0.7720E+00*SB2-0.9360E-02*SB3
215 A3= 0.1080E+02-0.3915E+01*SB -0.1153E+01*SB2+0.2649E+01*SB3
216 A4= 0.9894E+00-0.1647E+00*SB -0.9426E-02*SB2+0.2945E-02*SB3
217 A5=-0.3395E+00+0.6998E+00*SB +0.7000E+00*SB2-0.6730E-01*SB3
218 goto 100
219c Ifl = -2
220 25 A0=Exp(-0.2449E+01-0.3513E+01*SB +0.4529E+01*SB2-0.2031E+01*SB3)
221 A1=-0.4050E+00+0.3411E+00*SB -0.3669E+00*SB2+0.1109E+00*SB3
222 A2= 0.7470E+01-0.2982E+01*SB +0.5503E+01*SB2-0.2419E+01*SB3
223 A3= 0.1503E+02+0.1638E+01*SB -0.8772E+01*SB2+0.3852E+01*SB3
224 A4= 0.1137E+01-0.1006E+01*SB +0.1485E+01*SB2-0.6389E+00*SB3
225 A5=-0.5299E+00+0.3160E+01*SB -0.3104E+01*SB2+0.1219E+01*SB3
226 goto 100
227c Ifl = -3
228 26 A0=Exp(-0.3640E+01+0.1250E+01*SB -0.2914E+01*SB2+0.8390E+00*SB3)
229 A1=-0.3595E+00-0.5259E-01*SB +0.3122E+00*SB2-0.1642E+00*SB3
230 A2= 0.7305E+01+0.9727E+00*SB -0.9788E+00*SB2-0.5193E-01*SB3
231 A3= 0.1198E+02-0.1799E+02*SB +0.2614E+02*SB2-0.1091E+02*SB3
232 A4= 0.9882E+00-0.6101E+00*SB +0.9737E+00*SB2-0.4935E+00*SB3
233 A5=-0.1186E+00-0.3231E+00*SB +0.3074E+01*SB2-0.1274E+01*SB3
234 goto 100
235c Ifl = -4
236 27 A0=SB** 0.1122E+01*Exp(-0.3718E+01-0.1335E+01*SB +0.1651E-01*SB2)
237 A1=-0.4719E+00+0.7509E+00*SB -0.8420E+00*SB2+0.2901E+00*SB3
238 A2= 0.6194E+01-0.1641E+01*SB +0.4907E+01*SB2-0.2523E+01*SB3
239 A3= 0.4426E+01-0.4270E+01*SB +0.6581E+01*SB2-0.3474E+01*SB3
240 A4= 0.2683E+00+0.9876E+00*SB -0.7612E+00*SB2+0.1780E+00*SB3
241 A5=-0.4547E+00+0.4410E+01*SB -0.3712E+01*SB2+0.1245E+01*SB3
242 goto 100
243c Ifl = -5
244 28 A0=SB** 0.9838E+00*Exp(-0.2548E+01-0.7660E+01*SB +0.3702E+01*SB2)
245 A1=-0.3122E+00-0.2120E+00*SB +0.5716E+00*SB2-0.3773E+00*SB3
246 A2= 0.6257E+01-0.8214E-01*SB -0.2537E+01*SB2+0.2981E+01*SB3
247 A3=-0.6723E+00+0.2131E+01*SB +0.9599E+01*SB2-0.7910E+01*SB3
248 A4= 0.9169E-01+0.4295E-01*SB -0.5017E+00*SB2+0.3811E+00*SB3
249 A5= 0.2402E+00+0.2656E+01*SB -0.1586E+01*SB2+0.2880E+00*SB3
250 goto 100
251c Ifl = -6
252 29 A0=SB** 0.1001E+01*Exp(-0.6934E+01+0.3050E+01*SB -0.6943E+00*SB2)
253 A1=-0.1713E+00-0.5167E+00*SB +0.1241E+01*SB2-0.1703E+01*SB3
254 A2= 0.6169E+01+0.3023E+01*SB -0.1972E+02*SB2+0.1069E+02*SB3
255 A3= 0.4439E+01-0.1746E+02*SB +0.1225E+02*SB2+0.8350E+00*SB3
256 A4= 0.5458E+00-0.4586E+00*SB +0.9089E+00*SB2-0.4049E+00*SB3
257 A5= 0.3207E+01-0.3362E+01*SB +0.5877E+01*SB2-0.7659E+01*SB3
258 goto 100
259
260 3 Goto(31,32,33,34,35,36,37,38,39)Iflv
261c Ifl = 2
262 31 A0=Exp( 0.3961E+00+0.4914E+00*SB -0.1728E+01*SB2+0.7257E+00*SB3)
263 A1= 0.4162E+00-0.1419E+00*SB +0.3680E+00*SB2-0.1618E+00*SB3
264 A2= 0.3248E+01+0.3028E+01*SB -0.4307E+01*SB2+0.1920E+01*SB3
265 A3=-0.1100E+01+0.2184E+01*SB -0.3820E+01*SB2+0.1717E+01*SB3
266 A4= 0.2082E+01-0.2756E+00*SB +0.3043E+00*SB2-0.1260E+00*SB3
267 A5=-0.4822E+00-0.5706E+00*SB +0.2243E+01*SB2-0.9760E+00*SB3
268 goto 100
269c Ifl = 1
270 32 A0=Exp( 0.2148E+00+0.5814E-01*SB +0.2734E+00*SB2-0.2902E+00*SB3)
271 A1= 0.4810E+00+0.1657E-01*SB -0.3800E-01*SB2+0.3125E-01*SB3
272 A2= 0.3509E+01+0.3923E+00*SB +0.4010E+00*SB2-0.1932E+00*SB3
273 A3= 0.7055E+01-0.6552E+01*SB +0.3466E+01*SB2-0.5657E+00*SB3
274 A4= 0.1061E+01-0.3453E+00*SB +0.4089E+00*SB2-0.1817E+00*SB3
275 A5= 0.8687E-01+0.2548E+00*SB -0.2967E+00*SB2+0.2647E+00*SB3
276 goto 100
277c Ifl = 0
278 33 A0=Exp(-0.4665E+00-0.7554E+00*SB -0.3323E+00*SB2-0.2734E-04*SB3)
279 A1=-0.3359E+00+0.2395E+00*SB -0.2377E+00*SB2+0.7059E-01*SB3
280 A2= 0.5451E+01+0.6086E+00*SB +0.8606E-01*SB2-0.1425E+00*SB3
281 A3= 0.1026E+02-0.9352E+01*SB +0.4879E+01*SB2-0.1150E+01*SB3
282 A4= 0.9935E+00-0.5017E-01*SB -0.1707E-01*SB2-0.1464E-02*SB3
283 A5=-0.4160E-01+0.2305E+01*SB -0.1063E+01*SB2+0.3211E+00*SB3
284 goto 100
285c Ifl = -1
286 34 A0=Exp(-0.3323E+01+0.2296E+00*SB -0.1109E+01*SB2+0.2223E+00*SB3)
287 A1=-0.3410E+00+0.8847E-01*SB -0.1111E-01*SB2-0.5927E-02*SB3
288 A2= 0.9753E+01-0.5182E+00*SB -0.4670E+00*SB2+0.1921E+00*SB3
289 A3= 0.1977E+02-0.1600E+02*SB +0.9481E+01*SB2-0.1864E+01*SB3
290 A4= 0.9818E+00+0.2839E-02*SB -0.1188E+00*SB2+0.3584E-01*SB3
291 A5=-0.7934E-01+0.1004E+01*SB +0.3704E+00*SB2-0.1220E+00*SB3
292 goto 100
293c Ifl = -2
294 35 A0=Exp(-0.2714E+01-0.2868E+01*SB +0.3700E+01*SB2-0.1671E+01*SB3)
295 A1=-0.3893E+00+0.3341E+00*SB -0.3897E+00*SB2+0.1420E+00*SB3
296 A2= 0.8359E+01-0.3267E+01*SB +0.5327E+01*SB2-0.2245E+01*SB3
297 A3= 0.2359E+02-0.5669E+01*SB -0.4602E+01*SB2+0.3153E+01*SB3
298 A4= 0.1106E+01-0.4745E+00*SB +0.7739E+00*SB2-0.3417E+00*SB3
299 A5=-0.5557E+00+0.3433E+01*SB -0.3390E+01*SB2+0.1354E+01*SB3
300 goto 100
301c Ifl = -3
302 36 A0=Exp(-0.3985E+01+0.2855E+01*SB -0.5208E+01*SB2+0.1937E+01*SB3)
303 A1=-0.3337E+00-0.1150E+00*SB +0.3691E+00*SB2-0.1709E+00*SB3
304 A2= 0.7968E+01+0.3641E+01*SB -0.6599E+01*SB2+0.2642E+01*SB3
305 A3= 0.1873E+02-0.1999E+02*SB +0.1734E+02*SB2-0.5813E+01*SB3
306 A4= 0.9731E+00+0.5082E+00*SB -0.8780E+00*SB2+0.3231E+00*SB3
307 A5=-0.5542E-01-0.4189E+00*SB +0.3309E+01*SB2-0.1439E+01*SB3
308 goto 100
309c Ifl = -4
310 37 A0=SB** 0.1105E+01*Exp(-0.3952E+01-0.1901E+01*SB +0.5137E+00*SB2)
311 A1=-0.3543E+00+0.6055E+00*SB -0.6941E+00*SB2+0.2278E+00*SB3
312 A2= 0.5955E+01-0.2629E+01*SB +0.5337E+01*SB2-0.2300E+01*SB3
313 A3= 0.1933E+01+0.4882E+01*SB -0.3810E+01*SB2+0.2290E+00*SB3
314 A4= 0.1806E+00+0.1655E+01*SB -0.1893E+01*SB2+0.6395E+00*SB3
315 A5= 0.4790E+00+0.3612E+01*SB -0.3152E+01*SB2+0.9684E+00*SB3
316 goto 100
317c Ifl = -5
318 38 A0=SB** 0.9818E+00*Exp(-0.1825E+01-0.7464E+01*SB +0.2143E+01*SB2)
319 A1=-0.2604E+00-0.1400E+00*SB +0.1702E+00*SB2-0.8476E-01*SB3
320 A2= 0.6005E+01+0.6275E+00*SB -0.2535E+01*SB2+0.2219E+01*SB3
321 A3=-0.9067E+00+0.1149E+01*SB +0.1974E+01*SB2+0.4716E+01*SB3
322 A4= 0.3915E-01+0.5945E-01*SB -0.9844E-01*SB2+0.2783E-01*SB3
323 A5= 0.5500E+00+0.1994E+01*SB -0.6727E+00*SB2-0.1510E+00*SB3
324 goto 100
325c Ifl = -6
326 39 A0=SB** 0.1002E+01*Exp(-0.8553E+01+0.3793E+00*SB +0.9998E+01*SB2)
327 A1=-0.5870E-01-0.2792E+00*SB +0.6526E+00*SB2-0.1984E+01*SB3
328 A2= 0.4716E+01+0.4473E+00*SB +0.1128E+02*SB2-0.1937E+02*SB3
329 A3= 0.1289E+02-0.1742E+02*SB -0.1983E+02*SB2-0.9274E+00*SB3
330 A4= 0.5647E+00-0.2732E+00*SB +0.1074E+01*SB2+0.5981E+00*SB3
331 A5= 0.4390E+01-0.1262E+01*SB -0.9026E+00*SB2-0.9394E+01*SB3
332 goto 100
333
334 311 stop 'This option is not currently supported.'
335
336 100 CONTINUE
337 P012 = A0 *(x**A1) *((D1-x)**A2)
338 P34 = (D1+A3*(x**A4))
339 P5 = (log(D1+D1/x))**A5
340C
341 PDFD = P012 * P34 * P5
342 PDF = PDFD
343C
344 Ctq3Pd = PDF
345 if(Ctq3Pd.lt.D0) then
346 Ctq3Pd = D0
347 Irt=1
348 endif
349
350 Ist = Iset
351
352 Lp = Iprtn
353 Qsto = QQ
354
355 Return
356C -----------------------
357 ENTRY Wlamd3 (Iset, Iorder, Neff)
358
359C Returns the EFFECTIVE QCD lambda values for order=Iorder and
360C effective # of flavors = Neff for each of the PDF sets.
361
362 Iorder = Iord (Iset)
363 Wlamd3 = VLM (Neff, Iset)
364
365 RETURN
366
367C *************************
368 END