CHIRON: numerical tools for Chiral Perturbation Theory

There is a companion Chiral Perturbation Theory page. This page is exclusively devoted to CHIRON.

CHIRON consist of two C++ libraries. One with numerical routines and one with routines more specifically for Chiral Perturbation Theory numerical calculations. The package is released under GPLv2.

The library is described in CHIRON: a package for ChPT numerical results at two loops, Johan Bijnens, LU TP 14-41, arXiv:1412.0887, Eur. Phys. J C 75 (2015) 27 (describes v0.50), please cite this and the relevant original papers when using.

Github link

More up-to-date versions including all latest changes can be found at Github

Present official version: 0.54 (14 September 2015)

• The file chiron.v0.54.tar.gz which contains everything, including the sources.
• The paper as LU TP 14-41, arXiv:1412.0887, Eur. Phys. J C 75 (2015) 27 describing the contents and interfaces of v0.50.
• The manual describing the contents and interfaces in more detail, updated to present version.
• The libraries themselves as compiled with g++ 4.7.2: libjbnumlib.a and libchiron.a, note that compiling them on your local machine should give better results.
• Main changes compared to v0.53:
  • Partially quenched and finite volume for QCD like theories for masses, decay and condensates included
  • Finite volume for three flavour ChPT in terms of lowest order masses included for the condensate
  • Manual updated
• Full list of changes compared to v0.53

Versions in progress

This contains newer versions where changes have been made w.r.t. to the last official version.

But note: things in here that are not present and documented in earlier versions may change without notice and without changing version numbers of files and the like.

• The file chiron.v0.55beta.tar.gz which contains everything, including the sources.
• The list of changes

Older versions

• Chiron 0.53 (23 June 2015)
  • The file chiron.v0.53.tar.gz which contains everything, including the sources.
  • The paper as LU TP 14-41, arXiv:1412.0887, Eur. Phys. J C 75 (2015) 27 describing the contents and interfaces of v0.50.
  • The manual describing the contents and interfaces in more detail, updated to present version.
  • The libraries themselves as compiled with g++ 4.7.2: libjbnumlib.a and libchiron.a, note that compiling them on your local machine should give better results.
  • Main changes compared to v0.52:
    • Partially quenched finite volume for three sea quark flavours for masses and decay constants included
    • Finite volume for thee flavour ChPT in terms of lowest order masses included
    • Manual updated
  • Full list of changes compared to v0.52
• Chiron v0.52 (18 February 2015)
  • The file chiron.v0.52.tar.gz which contains everything, including the sources.
  • The paper as LU TP 14-41, arXiv:1412.0887, Eur. Phys. J C 75 (2015) 27 describing the contents and interfaces of v0.50.
  • The manual describing the contents and interfaces in more detail, updated to present version.
  • The libraries themselves as compiled with g++ 4.7.2: libjbnumlib.v0.52.a and libchiron.v0.52.a, note that compiling them on your local machine should give better results.
  • Main changes compared to v0.51:
    • Data structures for dealing with n_F ChPT implemented
    • The partially quenched expressions for the three sea quark case for masses and decay constants implemented
    • Manual updated
  • Full list of changes compared to v0.51
• Chiron v0.51 (5 February 2015)
  • The file chiron.v0.51.tar.gz which contains everything, including the sources.
  • The paper as LU TP 14-41, arXiv:1412.0887, Eur. Phys. J C 75 (2015) 27 describing the contents and interfaces of v0.50.
  • The manual describing the contents and interfaces in more detail, updated to present version.
  • The libraries themselves as compiled with g++ 4.7.2: libjbnumlib.v0.51.a and libchiron.v0.51.a, note that compiling them on your local machine should give better results.
  • Main changes compared to v0.50:
    • A number of different integration routines implemented
    • Using different integration routines in loop integrals implemented via macros
    • Sunset integrals with different powers of propagators implemented (needed for partially quenched)
    • Manual added
    • Data structures for the n_F case partially implemented.
  • Full list of changes compared to v0.50
• Chiron v0.50
  • The file chiron.v0.50.tar.gz which contains everything, including the sources.
  • The paper as LU TP 14-41, arXiv:1412.0887, Eur. Phys. J C 75 (2015) 27 describing the contents and interfaces of v0.50.
  • The libraries themselves as compiled with g++ 4.7.2 (renaming might be needed when using): libjbnumlib.v0.50.a and libchiron.v0.50.a (compiling them on your local machine should give better results).

This document was last modified Thursday, 07-Mar-2024 10:46:10 CET