Asymmetry
Analysis
Collaboration
Asymmetry Analysis Collaboration (AAC) is a working group
on polarized parton distribution functions (polarized-PDF) formed
by theorists and experimentalists.
The purpose of the working group is to study current constraints
on the polarized-PDF and suggest future measurements
for better determination of these distributions.
FORTRAN library of Polarized PDF
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AAC03 FORTRAN library source
( Phys.Rev. D69, 054021 (2004) )
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aac03e.tar.gz:
compressed FORTRAN library package (324 KB)
This compressed file contains 4 files (aac03e.f, sample.f, aacnlo.grd, and gradn.grd).
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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 uncertainty studies by the Hessian method,
The inverse matrix of Hessian (error matrix) can be used
by declaring a common block: COMMON/ERRM/EM(11,11).
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aacnlo.grd: grid data table file for NLO set
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gradn.grd: grid data table file for gradient terms of the AAC03 polarized PDFs
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aac03.tar.gz:
compressed FORTRAN library package, previous version (102 KB)
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AAC00 FORTRAN library source
(
Phys.Rev. D62 034017 (2000) )
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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).
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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.
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aaclo.grd: grid data table file for LO set
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aacnlo1.grd: grid data table file for NLO-1 set
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aacnlo2.grd: grid data table file for NLO-2 set
Publications
Last Updated at Jan 18, 2005
M. Hirai <
mhirai@rarfaxp.riken.jp>