C============================================================================
C                CTEQ-TEA Parton Distribution Functions: version 2010
C                             April 23, 2010, v1.00
C                             July 13, 2010, v1.01
C                             July 26, 2010, v1.02
C                             August 3, 2010, v1.03
C                             August 9, 2010, v1.04
C
C   Ref[1]: "New parton distributions for collider physics"
C      By : H.L. Lai, M. Guzzi, J. Huston, Z. Li, P. Nadolsky, J. Pumplin, C.-P. Yuan
C           arXiv:1007.2241 (hep-ph)

C   This package contains
C   (1) 1+52 sets of CT10 PDF's (4/23);
C   (2) 1+52 sets of CT10W PDF's (4/23);
C   (3) 10 sets of CT10 alternative alpha_s PDF's (7/13, 7/26);
C   (4) 10 sets of CT10W alternative alpha_s PDF's (7/13, 7/26);
C   (5) 4 sets of CT10 & CT10W in Fixed Flavor Scheme PDF's (8/3).

C  Details about the calling convention are:
C --------------------------------------------------------------------------------
C  Iset   PDF-set     Description           Alpha_s(Mz) Table_File     Ref
C ================================================================================
C  100    CT10.00     Central CT10           0.118      ct10.00.pds    [1]
C  1xx    CT10.xx     +/- sets               0.118      ct10.xx.pds    [1]
C        where xx = 01-52: 01/02 corresponds to +/- for the 1st eigenvector, ... etc.
C --------------------------
C  200    CT10W.00    Central CT10W          0.118      ct10w00.pds    [1]
C  2xx    CT10W.xx    +/- sets               0.118      ct10wxx.pds    [1]
C        where xx = 01-52: 01/02 corresponds to +/- for the 1st eigenvector, ... etc.
C ------------------------------------------------------------------------
C  Alpha_s range recommended to estimate the uncertainty of PDF+alpha_s
C   10    CT10.AS0    CT10 alpha_s series    0.116      ct10.as0.pds   [1]
C   11    CT10.AS1    CT10 alpha_s series    0.117      ct10.as1.pds   [1]
C   12    CT10.AS2    CT10 alpha_s series    0.119      ct10.as2.pds   [1]
C   13    CT10.AS3    CT10 alpha_s series    0.120      ct10.as3.pds   [1]
C --------------------------
C   20    CT10W.AS0   CT10W alpha_s series   0.116      ct10was0.pds   [1]
C   21    CT10W.AS1   CT10W alpha_s series   0.117      ct10was1.pds   [1]
C   22    CT10W.AS2   CT10W alpha_s series   0.119      ct10was2.pds   [1]
C   23    CT10W.AS3   CT10W alpha_s series   0.120      ct10was3.pds   [1]
C ------------------------------------------------------------------------
C  Extended alpha_s range for further exploration
C   14    CT10.AS4    CT10 alpha_s series    0.113      ct10.as4.pds   [1]
C   15    CT10.AS5    CT10 alpha_s series    0.114      ct10.as5.pds   [1]
C   16    CT10.AS6    CT10 alpha_s series    0.115      ct10.as6.pds   [1]
C   17    CT10.AS7    CT10 alpha_s series    0.121      ct10.as7.pds   [1]
C   18    CT10.AS8    CT10 alpha_s series    0.122      ct10.as8.pds   [1]
C   19    CT10.AS9    CT10 alpha_s series    0.123      ct10.as9.pds   [1]
C --------------------------
C   24    CT10W.AS4   CT10W alpha_s series   0.113      ct10was4.pds   [1]
C   25    CT10W.AS5   CT10W alpha_s series   0.114      ct10was5.pds   [1]
C   26    CT10W.AS6   CT10W alpha_s series   0.115      ct10was6.pds   [1]
C   27    CT10W.AS7   CT10W alpha_s series   0.121      ct10was7.pds   [1]
C   28    CT10W.AS8   CT10W alpha_s series   0.122      ct10was8.pds   [1]
C   29    CT10W.AS9   CT10W alpha_s series   0.123      ct10was9.pds   [1]
C ------------------------------------------------------------------------
C  Fixed Flavor Scheme
C   30    CT10.3F     CT10 3-flavor          0.118      ct10.3f.pds    [1]
C   31    CT10.4F     CT10 4-flavor          0.118      ct10.4f.pds    [1]
C   32    CT10W.3F    CT10W 3-flavor         0.118      ct10w3f.pds    [1]
C   33    CT10W.4F    CT10W 4-flavor         0.118      ct10w4f.pds    [1]
C ===========================================================================
C   ** ALL fits are obtained by using the same coupling strength
C   \alpha_s(Mz)=0.118 and the NLO (HOPPET) running \alpha_s formula.
C
C   The table grids are generated for 
C    *  10^-8 < x < 1 and 1.3 < Q < 10^5 (GeV) for CT10 & CT10W series;
C
C   PDF values outside of the above range are returned using extrapolation.
C
C   The Table_Files are assumed to be in the working directory.
C
C   Before using the PDF, it is necessary to do the initialization by
C       Call SetCT10(Iset)
C   where Iset is the desired PDF specified in the above table.
C
C   The function CT10Pdf (Iparton, X, Q)
C   returns the parton distribution inside the proton for parton [Iparton]
C   at [X] Bjorken_X and scale [Q] (GeV) in PDF set [Iset].
C   Iparton  is the parton label (5, 4, 3, 2, 1, 0, -1, ......, -5)
C                            for (b, c, s, d, u, g, u_bar, ..., b_bar),
C
C   For detailed information on the parameters used, e.q. quark masses,
C   AlphaS, ... etc.,  see info lines at the beginning of the
C   Table_Files.
C
C   These programs, as provided, are in double precision.  By removing the
C   "Implicit Double Precision" lines, they can also be run in single
C   precision.
C
C   If you have detailed questions concerning these CT10 distributions,
C   or if you find problems/bugs using this package, direct inquires to
C   hllai@tmue.edu.tw, pumplin@pa.msu.edu or nadolsky@physics.smu.edu.
C
C===========================================================================