FORTRAN library of Polarized PDF

• AAC08 FORTRAN library source (Nucl. Phys. B 813, 106-122 (2009))
  • AAC08e.zip: compressed FORTRAN library package (1.555 KB)
    This compressed file contains 7 files (aac08.f, sample.f, aacnlo08_posi.grd, aacnlo08_node.grd, grad_posi.grd, grad_node.grd, and EM.inc).
  This subroutine returns the values of the AAC08 polarized PDFs and their gradient terms at specified Q² and x point. Available range: 10^-9 <= X <= 1.0, and 1.0 GeV² <= Q² <= 10⁸ GeV².
  Two PDF sets can be chosen in the set-B analysis:
  1. polarized PDFs with a positive-type gluon distribution,
  2. polarized PDFs with a node-type gluon distribution.
  * For calculating uncertainties of the polarized PDFs by the Hessian method, the inverse matrix of Hessian (error matrix) can be used by declaring a common block: COMMON/ERRM/EM(11,11).
  
  
• AAC03 FORTRAN library source ( Phys.Rev. D69, 054021 (2004) )
  • aac03e.tar.gz: compressed FORTRAN library package (324 KB)
    This compressed file contains 4 files (aac03e.f, sample.f, aacnlo.grd, and gradn.grd).
  • aac03e.f: FORTRAN subroutine source file. Update version for uncertainty studies.
    This subroutine returns the values of the AAC03 polarized PDFs and their gradient terms at specified Q² and x point. Available range: 10^-9 <= X <= 1.0, and 1.0 GeV² <= Q² <= 10⁸ GeV².
    * For calculating uncertainties of the polarized PDFs by the Hessian method, the inverse matrix of Hessian (error matrix) can be used by declaring a common block: COMMON/ERRM/EM(11,11).
  • aacnlo.grd: grid data table file for NLO set
  • gradn.grd: grid data table file for gradient terms of the AAC03 polarized PDFs
  • aac03.tar.gz: compressed FORTRAN library package, previous version (102 KB)


• AAC00 FORTRAN library source ( Phys.Rev. D62 034017 (2000) )
  • aac00.tar.gz: compressed FORTRAN library package (148 KB)
    This compressed file contains 5 files (aac00.f, sample.f, aaclo.grd, aacnlo1.grd, and aacnlo2.grd).
  • aac00.f: FORTRAN subroutine source file
    This subroutine returns the values of the AAC00 polarized PDF and the structure function g₁ at specified Q² and x point. Available range: 10^-9 <= X <= 1.0, and 1.0 GeV² <= Q² <= 10⁶ GeV².
    * The subroutine is separated grid data form the previous library subroutine aac.f, since the previous subroutine takes much times to compile.
  • aaclo.grd: grid data table file for LO set
  • aacnlo1.grd: grid data table file for NLO-1 set
  • aacnlo2.grd: grid data table file for NLO-2 set

Publications

• Determination of gluon polarization from deep inelastic scattering and collider data ( Nucl. Phys. B 813, 106-122 (2009), arXiv:0808.0413 )
• Determination of polarized parton distribution functions with recent data on polarization asymmetries ( Phys.Rev. D74, 014015 (2006) , hep-ph/0603213 )
• Determination of polarized parton distribution functions and their uncertainties ( Phys.Rev. D69, 054021 (2004) , hep-ph/0312112 )
• Polarized Parton Distribution Functions in the Nucleon ( Phys.Rev. D62 034017 (2000), hep-ph/0001046 )