DNS2005 POLARIZED PARTON DISTRIBUTIONS

readgrid.f A FORTRAN package containing:

POLARIZED PARTON DISTIBUTIONS (NLO and LO)

D. de Florian, G A Navarro and R. Sassot

Phys Rev D71:094018,2005 - hep-ph/0504155.

Requires the grid files

    DNS1LO.GRID
    DNS1NLO.GRID
    DNS2LO.GRID
    DNS2NLO.GRID

dns2005.uu is a tarred, gzipped and uuencoded version of the complete package (973 KB).

Summary details:


CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
C                                                                            C
C       POLARIZED PARTON DISTRIBUTIONS (NLO)                                 C
C       FROM  PRD71, 094018 (2005)                                           C
C       hep-ph/0504155                                                       C
C       D. de Florian G.A. Navarro and R. Sassot.                            C
C                                                                            C
C       MODE: 1 SET 1 NLO (MSbar) (based on KRETZER ffs)                     C
C             2 SET 2 NLO (MSbar) (based on KKP     ffs)                     C
C             3 SET 1  LO         (based on KRETZER ffs)                     C
C             4 SET 2  LO         (based on KKP     ffs)                     C
C                                                                            C
C                    Q2=Q^2                                                  C
C                    DUV :    X * U VALENCE DISTRIBUTION                     C
C                    DDV :    X * D VALENCE DISTRIBUTION                     C
C                    DUBAR :  X * UBAR DISTRIBUTION                          C
C                    DDBAR :  X * DBAR DISTRIBUTION                          C
C                    DSTR :   X * STRANGE DISTRIBUTION                       C
C                    DGLU :   X * GLUON DISTRIBUTION                         C
C                    G1P :    X * POLARIZED STRUCTURE FUNCTION (PROTON)      C
C                    G1N :    X * POLARIZED STRUCTURE FUNCTION(NEUTRON)      C
C                                                                            C
C       REMEMBER: ALWAYS X*DISTRIBUTION !!!                                  C  C                      C
C       BEFORE CALLING THE SUBRUTINE `POLFIT` FOR THE FIRST TIME, THE        C
C       SUBROUTINE `INI` MUST BE CALLED (ONLY ONCE) TO READ THE GRIDS.       C
C              (CALL INI)
C       RANGE OF VALIDITY OF THE INTERPOLATION:                              C
C                                       10**(-4)< X < 0.9                    C
C                                       1 < Q**2 < 5*10**4                   C
C                                                                            C
C       IN CASE OF PROBLEMS, DOUBTS, ETC, PLEASE REPORT TO                   C
C        dflorian@df.uba.ar                                                  C
C        sassot@df.uba.ar                                                    C
C                                                                            C
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC