5 * Revision 1.1.1.2 1996/10/30 08:29:15 cernlib
8 * Revision 1.1.1.1 1996/04/12 15:29:29 plothow
12 #include "pdf/pilot.h"
13 SUBROUTINE RXDV (X,QQ,XDV)
14 C.......................................................................
18 C.......................................................................
19 #include "pdf/impdp.inc"
20 #include "pdf/expdp.inc"
22 DATA XLAM /0.50D00/, Q0/2.1D0/, Q00/1.8D0/
23 DATA ONED/1.D0/, THRED/3.D0/
25 S=LOG(QQ/XLAM**2)/LOG(Q00/XLAM**2)
27 ETA3=0.85D00-0.24D00*S
28 ETA4=3.35D00+0.816D00*S
29 XDV=(X**ETA3)*((ONED-X)**ETA4)/BBETA(ETA3,ONED+ETA4)