Name: Vesna Cuplov (email_not_shown)
Date: 11/19/03-02:58:10 PM Z

I have calculated radiative corrections to a process involving the kaon. I
have now all the analytic results for the decay rate of this process. I
need to perform integrals over the phase space of the decay to get a
numerical result.

I see that FeynCalc is used for algebraic calculations. LoopTools can not
evaluate functions with non-numeric arguments.

I would like to know what package I can use under mathematica to perfor
such integrals?

A basic example is, how can I get a numerical result for

I give values of Masses in the mathematica programm, then

Integrate[ PaVe[0, {M1^2, s, M2^2}, {0,M1^2, M2^2}], {s, 4 M1^2, (M2-ml)^2}]

I try to do this with use of FeynCalc and LoopTools but it does not work.

Could you please help me.

Best regards,
Vesna Cuplov
Vesna Cuplov (PhD)
Centre de Physique Theorique
CNRS - Luminy Case 907
13288 Marseille Cedex 09
Tel: +33 {0}
Fax: +33 {0}

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