Integration problem?
Hi,
I am simulating the following processes: a e- > a a e-. a e- > e- e+ e-, and a e- > a e- e+ e-, the cross-section value calculated by MG deviates a lot from one simulation to another also less than 10% of the LHE events requested are simulated. This problem occurs to my understanding when the integration is diverging particularly at extreme angles. So usually, a remedy is to apply pseudo-rapidity cuts, however this is not a solution for me as I am interested at what is happening at the extreme angles. What is the alternative solution beside pseudo-rapidity cuts to make the integration (and simulation much faster) converging?
Thanks,
Igal.
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