Requires the grid files
i+NLO.GRID
i-NLO.GRID
ii+NLO.GRID
ii-NLO.GRID
iii+NLO.GRID
iii-NLO.GRID
i+LO.GRID
i-LO.GRID
ii+LO.GRID
ii-LO.GRID
iii+LO.GRID
iii-LO.GRID
ds2000.uu
is a tarred, gzipped and uuencoded version of the complete
package (973 KB).
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC C C C POLARIZED PARTON DISTRIBUTIONS (NLO and LO) C C FROM HEP-PH/0007068 - PRD62(2000)094025 C C D. de Florian and R. Sassot C C C C The distributions are obtained by calling the subroutine C C C C DS2000(SET,X,Q2,DUV,DDV,DUBAR,DDBAR,DSTR,DGLU,G1P,G1N,G1D) C C C C Where C C SET: 1 SET i+ NLO (MSbar) C C 2 SET i- NLO (MSbar) C C 3 SET ii+ NLO (MSbar) C C 4 SET ii- NLO (MSbar) C C 5 SET iii+ NLO (MSbar) C C 6 SET iii- NLO (MSbar) C C 7 SET i+ LO C C 8 SET i- LO C C 9 SET ii+ LO C C 10 SET ii- LO C C 11 SET iii+ LO C C 12 SET iii- LO C C C C X= x_bjorken 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 * STR= X * STRBAR 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 G1D : X * POLARIZED STRUCTURE FUNCTION(DEUTERON) C C C C REMEMBER: ALWAYS X*DISTRIBUTION !!! C C C C BEFORE CALLING THE SUBRUTINE `DS2000` FOR THE FIRST TIME, THE C C SUBROUTINE `INI` MUST BE CALLED (ONLY ONCE!) TO READ THE GRIDS. C C (See the test program above as an example) C C C C RANGE OF VALIDITY OF THE INTERPOLATION: C C 10**(-4)< X < 1.0 C C 1 < Q**2 < 5*10**4 C C C C IN CASE OF PROBLEMS, DOUBTS, ETC, PLEASE REPORT TO C C daniel.deflorian@cern.ch C C sassot@df.uba.ar C C C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC