Subroutine for unintegrated parton densities
(summarised by The Small x Collaboration)

 
• The unintegrated gluon density xA(x,k^2_t,p) for a proton with KF=2212, as a function of x, k^2_t=KT and p=P can be accessed via the subroutine CAUNIGLU.
  
• Get the source code (including the dat files and a simple test program) from here.
  

        Unpack the file with:
        tar xvfz cauniglu-2.0.tar.gz
        then
        cd cauniglu-2.0
        follow the instructions in README

• 
  

The gluon density is returned in XPQ(0), where XPQ is an array with XPQ(-6:6).
Note, that \int dk^2_t xA(x,k^2_t,p)  \sim pi xG(x,Q^2).

Interface to all availbale sets (via COMMON/CAGLUON/Iglu )
 


Iglu	Set	Reference
1	JS (CCFM)	Jung Salam hep-ph  Eur. Phys. J. C 19, 351-360
1000 1001 1002	J2003 - set 1 J2003 - set 2 J2003 - set 3	Hansson Jung
1010 1011 1012 1013 1020 1021 1022 1023	Set A0 Set A0+ Set A0- Set A1 Set B0 Set B0+ Set B0- Set B1	Jung
2	Derivative method (DGLAP)	Small x Collaboration
3	JB (BFKL)	J. Bluemlein
4	KMS (DGLAP-BFKL)	Kwiecinski Martin Stasto
5	GBW (Saturation Model)	Golec-Biernat Wusthoff
6	KMR (DGLAP-BFKL, twoscale)	Kimber Martin Ryskin
7	RS (old BFKL)	Ryskin Shabelski, Z.Phys.C66:151 (1995) Small x Collaboration

Data files for unintegrated gluon diensity needed for CASCADE:

• CCFM data file (JS2001) ccfm.dat
• unintegrated CCFM gluon densities (2003)
• (presented at DIS03, incl. new norm from Oct. 03)
• new fit (Oct.03) (J2003 - set 1)  with new treatment of soft region
• new fit (Oct.03) (J2003 - set 2) including non singular terms
• new fit (Oct.03) (J2003 - set 3) with changed scale in alphas
• ccfm-gam.dat( set 1)  for real photon (with new treatment of soft region)

• NEW updf including scale variations (2004)
  

• KMS data file kms.dat
• KMR data file kmr.da