how to use feyncalc to calculate amplitudes

ossama — 2008-05-11T14:22:27+01:00

hello, this is my first post here,
i am new to feyncalc
i want to write a program using feyncalc that evaluate the cross-section of a process (say, moller or bhabha

Re: FeynArts compability

Yan -Qing Ma — 2008-05-10T18:09:36+01:00

Currently,FeynArts is not compatible with Math6.0.
So I always create FeynAmp in Math5.x, and then calc them in math6.0

FeynArts compability

Nicolas Gutierrez — 2008-04-18T06:33:02+01:00

While i was trying to use this example, /usr/local/Wolfram/Mathematica/6.0/AddOns/Applications/HighEnergyPhysics/fcexamples/qcdgluonse1loop.nb i couldn't use the command:

How to plot

George — 2008-04-12T19:20:52+01:00

Soory for this simple question... suppose I want to plot a graph of some equation without specifying numerical values of arguments and parameters e.g(ax^2+bx+c+=0) where I wa

Re: Programming in Mathematica

Ben-Wei Zhang — 2008-04-03T20:17:56+01:00

Hi,

Surely Mathematica has its own programing characteristics, and I
suggest you to learn it directly.

Best regards,

On Thu, Apr 3, 2008 at 12:53

Programming in Mathematica

George — 2008-04-03T18:53:56+01:00

Hello,
I want to start programming in Mathematica to calculate SUSY things...(for example to define nilpotent variables..or SUSY derivatives etc) but I have not any ski

Re: Unexpected echo after loading FeynCalc

Dimitry Fedorov — 2008-03-13T08:55:09+01:00

This error still appear while loading FeynCalc. But I didn�t note its impact to calculations I have performed. Also, this error does not appear under Windows XP.

Dear FeynCalc members:

Please see my messages:
"Re: Unexpected echo after loading FeynCalc"

Thank you.

Re: Unexpected echo after loading FeynCalc

Masaru Watanabe — 2008-03-13T02:53:54+01:00

Dear FeynCalc members and Dimitry Fedorov:

I have also gotten the similar General::"dirdep" warning messages,
but neglected these and proceeded. Thus

Re: Unexpected echo after loading FeynCalc

Masaru Watanabe — 2008-03-07T03:36:16+01:00

I have also gotten the same error messages when I loaded FeynCalc 5.1
with Mathematica 5.2 on Windows Vista machine.

FeynCalc on Windows Vista

Masaru Watanabe — 2008-03-07T02:51:51+01:00

Dear FeynCalc Forum members:

Recently I got a Windows Vista machine with Intel core 2 duo.

Mathematica 5.2 works successfully on this new machine, and
I

Re: FermionSpinSum

andrea — 2008-02-12T21:23:02+01:00

the point seems to be that, conversely to what it is said
in the documentation, ComplexConjugate does not
perform the conjugate of the lorentz index
anymore as

FermionSpinSum

andrea — 2008-02-06T11:59:09+01:00

with FeynCalc 4.1 and Mathematica 5.1 (and previous versions)

these lines

M00:=Spinor[p1,m1].GA[a].GA[7].Spinor[p2,m2] \
Spinor[k1,M1].GA[b].GA[7].Spinor

installation of feyncalc on a mac os 10.4.11

stephan — 2008-01-26T14:25:03+01:00

Following my previous mail, I have detected the error of my installation. with best wishes. stephan

Feyncalc on mac os

stephan — 2008-01-24T11:29:18+01:00

Dear all,

I try to install feyncalc (fc5beta3) on a mac os 10.4.11 for a mathematica 5.2
For a typical example, I get the answer:
Get::noopen: "Cannot

Re: Feynamp

Rolf Mertig — 2008-01-24T10:49:55+01:00

Hello Akira,
please see the examples at:
http://www.feyncalc.org/FeynCalcBook/FeynAmpDenom