Multiple particle types in beam

From: Joseph Comfort <Joseph.Comfort_at_asu.edu>
Date: Wed, 05 Oct 2011 11:27:07 -0700

I am using a source.f file to read events from a file. The 'beam' file
has a a mixture of particles, each with its own id, in addition to
position and momentum components. It comes, for example, from an
intermediate stage of the full MC calculation.

Because IJBEAM is set by a BEAM card, I set a variable ibbeam to the
particle id. The section of the code labeled 'Normal hadron' is
modified so that the variables IONID and ILOFLK(NPFUKA) are set to
ibbeam. This seems to work.

Two questions: (1) Are there any subtle issues that could cause
problems? (2) What is the meaning/role of the BEAM card? I have
included a card for the most abundant particles in the file, to set an
energy range. But I don't know if this is meaningful. What happens if
the card is left out?

Thank you,
Joe Comfort
Received on Thu Oct 06 2011 - 09:30:35 CEST

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