+++ /dev/null
-*
-* $Id$
-*
-* $Log$
-* Revision 1.1.1.2 1996/10/30 08:32:16 cernlib
-* Version 7.04
-*
-* Revision 1.2 1996/10/28 15:13:56 pdflib
-* PDFLIB new version 7.04
-*
-* Revision 1.1.1.1 1996/04/12 15:29:48 plothow
-* Version 7.01
-*
-*
-#include "pdf/pilot.h"
- SUBROUTINE STRBEBC(DX,DQ,DUPV,DDNV,DSEA,DSTR,DGL)
-C SUBROUTINE STRBEBC(DX,DQ,DUDV,DUDS,DSEA,DSTR,DGL)
-*********************************************************************
-* *
-* P.Gorbunov /ITEP *
-* A.Maslennikov/ITEP May 1990 *
-* coded after Z. Phys. C 36 (1987) 1, BEBC WA59 *
-* *
-* Original publication: *
-* A.J. Buras and K.J.F. Gaemers, Nucl. Phys. B132 (1978) 249 *
-* *
-* *
-* adapted and corrected by H.Plothow-Besch/PPE April 1991 *
-* *
-*********************************************************************
-C.
-#include "pdf/expdp.inc"
- + DX,DQ,DUPV,DDNV,DSEA,DSTR,DGL
- REAL X, Q, UPV, DNV, SEA, STR, GL, UDVAL, UDSEA
- PARAMETER (BVQ02=0.77, BSQ02=5.3, BGQ02=4., Q02=0.5)
- PARAMETER (EPS=0.5)
-C
- EXTERNAL VALDIS,V3
-C
- COMMON/W5051I1/
- + GPSI(2:3),GAA(2:3),GPSIA(2:3),GAPSI(2:3),GMINUS(2:3),
- 1 AL(2:3),BET(2:3),GPLUS(2:3),
- 2 VNQ02(2:3),SNQ02(2:3),GNQ02(2:3)
-C
- PARAMETER (IX=112,IQ=40,NARG=2,KFUN=2)
- REAL ARG(NARG),ENT(IX+IQ),XQDUM(IX,IQ,KFUN),Q2P(IQ),XCO(IX)
- INTEGER NENT(NARG)
-C
- COMMON/W5051I2/ Q2L
- DATA ZERO/0./,HALF/0.5/,ONE/1./,TWO/2./,THRE/3./
- DATA INIT/0/
-C
- DATA XCO /
- +0.5000E-04,0.5545E-04,0.6150E-04,0.6820E-04,0.7564E-04,0.8389E-04,
- +0.9303E-04,0.1032E-03,0.1144E-03,0.1269E-03,0.1407E-03,0.1561E-03,
- +0.1731E-03,0.1920E-03,0.2129E-03,0.2361E-03,0.2619E-03,0.2904E-03,
- +0.3221E-03,0.3572E-03,0.3961E-03,0.4393E-03,0.4872E-03,0.5404E-03,
- +0.5993E-03,0.6646E-03,0.7371E-03,0.8174E-03,0.9066E-03,0.1005E-02,
- +0.1115E-02,0.1237E-02,0.1371E-02,0.1521E-02,0.1687E-02,0.1871E-02,
- +0.2075E-02,0.2301E-02,0.2552E-02,0.2830E-02,0.3139E-02,0.3481E-02,
- +0.3860E-02,0.4281E-02,0.4748E-02,0.5266E-02,0.5840E-02,0.6476E-02,
- +0.7182E-02,0.7966E-02,0.8834E-02,0.9797E-02,0.1087E-01,0.1205E-01,
- +0.1336E-01,0.1482E-01,0.1644E-01,0.1823E-01,0.2022E-01,0.2242E-01,
- +0.2487E-01,0.2758E-01,0.3058E-01,0.3392E-01,0.3762E-01,0.4172E-01,
- +0.4627E-01,0.5131E-01,0.5690E-01,0.6311E-01,0.6999E-01,0.7762E-01,
- +0.8608E-01,0.9547E-01,0.1059E+00,0.1174E+00,0.1302E+00,0.1444E+00,
- +0.1602E+00,0.1776E+00,0.1970E+00,0.2185E+00,0.2423E+00,0.2687E+00,
- +0.2980E+00,0.3305E+00,0.3666E+00,0.4065E+00,0.4508E+00,0.5000E+00,
- +0.5321E+00,0.5643E+00,0.5964E+00,0.6286E+00,0.6607E+00,0.6929E+00,
- +0.7250E+00,0.7571E+00,0.7893E+00,0.8214E+00,0.8536E+00,0.8857E+00,
- +0.9,0.91,0.92,0.93,0.94,0.95,0.96,0.97,0.98,0.99/
-C
- SAVE NENT, ENT, XQDUM
-C
- IF(INIT.EQ.0) THEN
-C--------- initialize Buras-Gaemers parametrization
-C BSMALL=(33.-8.)/3.
-C... in Buras-Gaemers paper (Nucl.Phys.132 (1978) 249) this is like:
- BSMALL=(33.-8.)/4.
- S=0.
- DO N=2,3
- S=S+1./N
- GPSI (N)=8./6./BSMALL* (1.-2./N/(N+1)+4.*S)
- GAA (N)=3./BSMALL* (1./3.-4./N/(N-1)-4./(N+1)/(N+2) +
- 1 4.*S) + 8./3./BSMALL
- GPSIA (N)=2./BSMALL* (8./(N+2)+16./N/(N+1)/(N+2))
- GAPSI (N)=4./3./BSMALL* (1./(N+1)+2./N/(N-1))
- GMINUS(N)=0.5*(GPSI(N)+GAA(N) -
- 1 SQRT((GPSI(N)-GAA(N))**2+4.*GPSIA(N)*GAPSI(N)))
- GPLUS (N)=0.5*(GPSI(N)+GAA(N) +
- 1 SQRT((GPSI(N)-GAA(N))**2+4.*GPSIA(N)*GAPSI(N)))
- AL (N)=GPSIA(N)*GAPSI(N)/
- 1 (GPSIA(N)*GAPSI(N)+(GMINUS(N)-GPSI(N))**2)
- BET (N)=0.5*AL(N)*(GPSI(N)-GMINUS(N))/GAPSI(N)
- ENDDO
-
- Q2L =Q02
-C
- VNQ02(2)= GAUSS(VALDIS,ZERO,ONE,EPS)
- VNQ02(3)= GAUSS(V3 ,ZERO,ONE,EPS)
- SNQ02(2)=VNQ02(2)*(ONE-BVQ02)/BVQ02
- SNQ02(3)=SNQ02(2)/(BSQ02+TWO)
- GNQ02(2)=ONE-SNQ02(2)-VNQ02(2)
- GNQ02(3)=GNQ02(2)/(BGQ02+TWO)
-
-*--------- initialize interpolation tables
- DO I=1,IQ
- Q2L=I-HALF
- ENT(IX+I)=LOG10(Q2L)
- DO J=1,IX
- ENT(J)=LOG10(XCO(J))
- XX = XCO(J)
- XQDUM(J,I,1)=VALDIS(XX)
- XQDUM(J,I,2)=SEADIS(XX)
- ENDDO
- ENDDO
- NENT(1)=IX
- NENT(2)=IQ
-
- INIT = 1
- ENDIF
- X = DX
- Q = DQ
- Q2IN = Q*Q
- ARG(1)= LOG10(X)
- ARG(2)= LOG10( MAX( Q02,Q2IN))
- UDVAL = MAX(ZERO,FINT(NARG,ARG,NENT,ENT,XQDUM(1,1,1)))
- UPV = UDVAL*TWO/THRE
- DNV = UPV/TWO
- UDSEA = MAX(ZERO,FINT(NARG,ARG,NENT,ENT,XQDUM(1,1,2))) /
- + (TWO+HALF)
- SEA = UDSEA*HALF
- STR = SEA*HALF
- GL = 0.
-C
- DUPV = UPV
- DDNV = DNV
- DSEA = SEA
- DSTR = STR
- DGL = GL
- RETURN
- END
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff