July 8 2003: ChPT examples and code in sync

While working extensively towards a 4.2 release of FeynCalc, I have finally updated the PHI code of the latest available FeynCalc pre-release and the ChPT examples used in my thesis to be in sync with each other. If someone finds this not to be so, please report it. The rest of the examples are simpler, but will also be updated. In the future the "API" of PHI should not change much, so hopefully the examples will run unchanged with future versions of FeynCalc too. The calculations in the weak sector are very time consuming. To save some time, you might want to "cheat" a bit and unpack the file "Storage.zip" from the ChPT directory in your "Phi" installation directory.

May 18 2001: Version 1.2 released

A lot of improvements and bug fixes have been made (see below), most of them inspired by my work on the calculation of the K -> 2 pi decay (see "Dispersion relations and soft pion theorems for K -> pi pi"). The most important of these is probably the new function UNMSplit (see below and the examples). This new version of PHI is included in the new version 4.1.1 of FeynCalc.

There is still a lot to be done. In particular, cleaning up example calculations of the scalar and vector form factors, writing documentation and of course, doing more calculations.

Autum 2000: News and plans

After a longer break (ca. one year), I have started working on PHI again and will hopefully soon bring it to a state where it is usefull to others working in the field. The things I will focus on are: Bug fixing, solving the problem with SU(3) (too slow, too large expressions), implementing more lagrangians, going to two loops.

June 12 2000: News and plans

The great news are that FeynCalc has been donated to the public domain. More on this and future plans for FeynCalc will available shortly (~20th of July) on the new website www.feyncalc.org. This will have some implications on the future of PHI: FeynCalc will from now on be developed in an open source model by voluntary labour. PHI 1.2 will be one of several modules or plug-ins of FeynCalc, still developed by yours sincerely, and will have its code stored in the CVS tree of FeynCalc, also accesible at www.feyncalc.org from ~20th of July.