LatHQ2QCD

Description

This program calculates the one-loop matching factor of heavy-heavy and heavy-light currents for Fermilab actions of lattice heavy quarks. For details on the action, see El-Khadra, Kronfeld and Mackenzie, Phys. Rev. D55, 3933 (1997) [arXiv:hep-lat/9604004].

For background on the application of heavy-quark effective theory to lattice gauge theory, see Kronfeld, Phys. Rev. D62, 014505 (2000) [arXiv:hep-lat/0002008].

Details of the calculation are documented in Harada, Hashimoto, Ishikawa, Kronfeld, Onogi and Yamada, arXiv:hep-lat/0112044 for heavy-light currents and in Harada, Hashimoto, Kronfeld, and Onogi, arXiv:hep-lat/0112045 for heavy-heavy currents.


Installation

Download the software, unpack it with ``csh LatHQ2QCD.uu'', and type ``make'' to compile. The GNU C++ compiler (g++) is required to compile this program. Version 2 has been tested on

Version 1 was tested on

Other C++ compilers should also work, but have not been tested.


VEGAS

The program uses the adaptive Monte Carlo integration package VEGAS developed by Peter Lepage, G.P. Lepage, J. Comput. Phys. 27, 192 (1978).

The C version of VEGAS is taken from Numerical Recipes, with bugs fixed by Sinisa Veseli (Fermilab).

The C++ interface was developed by Andreas Kronfeld (Fermilab).


Usage

A perl script ``exec.pl'' is provided to run the program for various actions and currents. It reads an input file to describe the input parameters. A file ``param'' is a self-explanatory sample of the input file. To run the script, type ``./exec.pl param''.


Copyright

VEGAS copyrighted by Numerical Recipes. Please obtain a license before using it.

All other software copyright 2001, 2006 by Universities Research Associates, Inc. (URA).

DISCLAIMER

THIS SOFTWARE IS MADE AVAILABLE IN THE HOPE THAT IT IS USEFUL TO OTHER RESEARCHERS IN LATTICE GAUGE THEORY. NO WARRANTY IS IMPLIED BY THE AUTHORS OR BY URA.


Download

If you have read and understood the Copyright and the DISCLAIMER sections, you may download the program by clicking v2 or v1.

21 December 2001, updated 28 August 2006
Andreas S. Kronfeld, Fermi National Accelerator Laboratory (Fermilab)
e-mail: ask@fnal.gov