The LoopTools Site
LoopTools is a package for evaluation of scalar and tensor one-loop
integrals based on the
FF package by G.J. van Oldenborgh. It features an easy Fortran, C++,
and Mathematica interface to the scalar one-loop functions of FF and in
addition provides the 2-, 3-, and 4-point tensor coefficient
functions.
LoopTools has been published in Comput. Phys. Commun. 118 (1999) 153
[hep-ph/9807565].
FF has been published in Z. Phys. C46 (1990) 425
[scanned
version from KEK].
The new automatic installation script gets you started quickly and
easily.
- Download the shell script FeynInstall [5 kB, MD5: ee2a67b83b7220b0152491f40f6f7b35].
(Use the right mouse button and "Save Link to Disk...")
- Make it executable with chmod 755 FeynInstall.
- Run it in the directory in which you want the packages installed:
./FeynInstall.
- The script separately prompts you for the installation of
FeynArts, FormCalc, and LoopTools.
- Finally, it asks whether to include FeynArts and FormCalc in
Mathematica's $Path.
The following files can be downloaded:
-
LoopTools-2.7.tar.gz [525 kB, MD5: f7826466a6f07310382f3336830740ef] (current version 2.7)
(Last update: 7 Mar 12)
- Added proper D-dimensional prefactor of loop
integrals in manual.
- Fixed a few non-detected IR-divergent cases.
- Improved mcc section of configure.
- LoopTools-2.6.tar.gz [521 kB, MD5: 957aba5a9353baed20ca3ffe5e4f7a76] (old version 2.6)
(Last update: 21 Jun 11)
- LoopTools-2.5.tar.gz [377 kB, MD5: ea0212494ee6378052aa8396b8202caa] (old version 2.5)
(Last update: 12 Aug 10)
- LoopTools-2.4.tar.gz [362 kB, MD5: f82b1466d4836c66277544726f20a9fe] (old version 2.4)
(Last update: 24 Dec 09)
- LoopTools-2.3.tar.gz [334 kB, MD5: 9e66181169c7a2875fc250fee4bf4787] (old version 2.3)
(Last update: 13 Jan 09)
- LoopTools-2.2.tar.gz [331 kB, MD5: b0abdf74e0ed3cc7db845888ad114c06] (old version 2.2)
(Last update: 27 Feb 07)
- LoopTools-2.1.tar.gz [298 kB, MD5: 7fce10fe0d27d8baa33710b0efecf6d3] (old version 2.1)
(Last update: 7 Dec 04)
- LoopTools-2.0.tar.gz [237 kB, MD5: 53b071854dc3e274c1c50298785a9a38] (old version 2.0)
(Last update: 30 Oct 01)
- LoopTools-1.2.tar.gz [525 kB, MD5: a0491a412533b7ce11d47f23800d4d4a] (old version 1.2)
(Last update: 19 Jul 99)
- ABTools.tar.gz [4 kB, MD5: 4731d63699d871845c70b108aa175f28]
ABTools is a "light" version of LoopTools. It contains just the
one- and two-point functions and consists of only the Fortran library
(no C++ or Mathematica part). The code is pure and lightweight Fortran
and very easy to build.
(Last update: 7 Sep 01.)
To compile the libraries you need f77 and gcc.
From Mathematica 7 on you must also have g++ (and libstdc++) installed for the
MathLink compile.
Installation notes for the impatient:
- unpack the archive LoopTools-m.n.tar.gz in some
directory,
- run ./configure,
- run make,
- run make install.
Attention g77 users: Do not compile LoopTools with optimization.
If you must turn on optimization for performance reasons, be sure to test
the results against the ones calculated with the unoptimized version.
Ubuntu users: Do not (= DO NOT) install fort77.
Install gfortran.
More detailed instructions are given in the manual which is contained
in PostScript form in the LoopTools distribution. You can also
obtain the manual here.
Ready-made MathLink executables
(Version 2.7, statically linked as far as possible):
Linux x86 (32-bit):
Mac OS X (32-bit Intel):
Windows (Cygwin 32-bit):
Thanks for looking in.
Please send bug reports, suggestions, fan mail, etc. to
Thomas Hahn,
hahn@feynarts.de.
Related packages:
FF,
FeynArts,
FormCalc,
FeynCalc,
QCDloop.
This site and the programs offered here are not commercial.
LoopTools is and will stay an open-source package and free of charge.
If you want to use LoopTools in a commercial application, make sure
you understand the
GNU Lesser General Public License under which LoopTools is
distributed. LoopTools is being developed at the
Max-Planck-Institute for
Physics in Munich.
Last update: 7 Mar 12
Thomas Hahn