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  Higgs production in RG-improved QCD
  
  Based on the following papers:
    Valentin Ahrens, Thomas Becher, Matthias Neubert and Li Lin Yang
    arXiv:0808.3008, arXiv:0809.4283 and arXiv:1008.3162
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The program needs several external libraries:

 LHAPDF(libLHAPDF.a): http://projects.hepforge.org/lhapdf/
 Cuba(libcuba.a): http://www.feynarts.de/cuba/

If these libraries are installed in a non-standard location, it can be specified in the
first line of "makefile". (Note: The program is by default assumed to be linked with Cuba
version 2.x. To use Cuba version 1.x, change Cuba_VERSION to 1 in the second line of
"makefile".)


Also note that the program relies on the script "lhapdf-config" in LHAPDF to determine the
directory containing the PDF sets. Make sure that "lhapdf-config" is in the PATH and the
PDF sets are put in the directory returned by executing "lhapdf-config --pdfsets-path".


The program is tested under Debian GNU/Linux 5.0 with gfortran 4.3.2 and under Mac OS X
10.6 with gfortran 4.2.3.


To use the program, type "make" to compile it, and run the driver script

  ./RunHiggs.py sqrtS m_H pdfset

where "sqrtS" is the center-of-mass energy of the collider (1960 for Tevatron, others for
LHC), "m_H" is the Higgs mass, "pdfset" choose the PDF sets to use (through LHAPDF) which
can be:
        MSTW --- MSTW2008NNLO
        CTEQ --- CTEQ6.6
        CT10 --- CT10
       NNPDF --- NNPDF2.0

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The NNLO fixed-order portion of our code is based on Nucl. Phys. B 646, 220 (2002). We
thank Babis Anastasiou for providing us with a Fortran code for the corresponding
hard-scattering cross sections. The NLO electroweak corrections in our code are obtained
from Phys. Lett. B 670, 12 (2008).