02626a96 |
1 | C... ALICE interface to PDFLIB with possibility to select nuclear structure |
2 | C... functions. |
3 | C... |
4 | C... The MSTP array in the PYPARS common block is used to enable and |
5 | C... select the nuclear structure functions. |
6 | C... MSTP(52) : (D=1) choice of proton and nuclear structure-function library |
7 | C... =1: internal PYTHIA acording to MSTP(51) |
8 | C... =2: PDFLIB proton s.f., with MSTP(51) = 1000xNGROUP+NSET |
9 | C... MSTP( 51) = 1000xNPGROUP+NPSET |
10 | C... MSTP(151) = 1000xNAGROUP+NASET |
11 | C... MSTP(192) : Mass number of nucleus side 1 |
12 | C... MSTP(193) : Mass number of nucleus side 2 |
13 | C... |
14 | C... |
15 | C... MINT(124) : side (1 or 2) |
16 | |
17 | |
18 | SUBROUTINE PDFSET_ALICE(PARM, VALUE) |
19 | C... |
20 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) |
21 | IMPLICIT INTEGER(I-N) |
22 | C...Interface to PDFLIB. |
23 | COMMON/LW50512/QCDL4,QCDL5 |
24 | SAVE /LW50512/ |
25 | DOUBLE PRECISION QCDL4,QCDL5 |
26 | COMMON/LW50513/XMIN,XMAX,Q2MIN,Q2MAX |
27 | SAVE /LW50513/ |
28 | DOUBLE PRECISION XMIN,XMAX,Q2MIN,Q2MAX |
29 | C... |
30 | COMMON/PYDAT1/MSTU(200),PARU(200),MSTJ(200),PARJ(200) |
31 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) |
32 | DOUBLE PRECISION VALUE(20) |
33 | CHARACTER*20 PARM(20) |
34 | write(6,*) MSTP(52) |
35 | write(6,*) PARM |
36 | write(6,*) VALUE |
37 | |
38 | IF (MSTP(192) .GT. 0 .AND. MSTP(193) .GT. 0) THEN |
39 | PARM(5)='NATYPE' |
40 | VALUE(5)=4 |
41 | PARM(6)='NAGROUP' |
42 | VALUE(6)=MSTP(191)/1000 |
43 | PARM(7)='NASET' |
44 | VALUE(7)=MOD(MSTP(191),1000) |
45 | CALL PDFSET(PARM,VALUE, |
46 | > MSTU(11),MSTP(51),MSTP(53),MSTP(55), |
47 | > QCDL4,QCDL5, |
48 | > XMIN,XMAX,Q2MIN,Q2MAX) |
49 | IF (MSTP(194) .EQ. 0) THEN |
50 | CALL SETLHAPARM("EKS98") |
51 | ELSE |
52 | CALL SETLHAPARM("EPS08") |
53 | ENDIF |
54 | ELSE |
55 | write(6,*) "-> pdfset" |
56 | CALL PDFSET(PARM,VALUE, |
57 | > MSTU(11),MSTP(51),MSTP(53),MSTP(55), |
58 | > QCDL4,QCDL5, |
59 | > XMIN,XMAX,Q2MIN,Q2MAX) |
60 | ENDIF |
61 | write(6,*) "done" |
62 | END |
63 | |
64 | |
65 | |
66 | SUBROUTINE STRUCTM_ALICE |
67 | + (XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GL) |
68 | C... |
69 | IMPLICIT DOUBLE PRECISION(A-H, O-Z) |
70 | IMPLICIT INTEGER(I-N) |
71 | COMMON/PYPARS/MSTP(200),PARP(200),MSTI(200),PARI(200) |
72 | COMMON/PYINT1/MINT(400),VINT(400) |
73 | C write(6,*) "structm_alice->" |
74 | IF (MSTP(192) .GT. 0 .AND. MSTP(193) .GT. 0) THEN |
75 | A=MSTP(191+MINT(124)) |
76 | C write(6,*) mint(124), "-> structa ", A |
77 | CALL STRUCTA(XX,QQ,A,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GL) |
78 | ELSE |
79 | C write(6,*) mint(124), "-> structm " |
80 | CALL STRUCTM(XX,QQ,UPV,DNV,USEA,DSEA,STR,CHM,BOT,TOP,GL) |
81 | ENDIF |
82 | END |
83 | |
84 | |