Eur. Phys. J. C (2004) 36: 177-181
https://doi.org/10.1140/epjc/s2004-01892-3
https://doi.org/10.1140/epjc/s2004-01892-3
theoretical physics
Muon colliders, Monte Carlo and gauge invariance
Institute for Theoretical Physics, University of Nijmegen, Toernooiveld 1, 6525 ED, Nijmegen, The Netherlands
* e-mail: chrisd@sci.kun.nl
If calculated in the standard way, the cross section for the collision of two unstable particles turns out to diverge. This is because part of such a cross section is proportional to the size of the colliding beams. This effect is called the “linear beam size effect”. We present a way of including this linear beam size effect in the usual Monte Carlo integration procedure. Furthermore we discuss the gauge breaking that this may cause.
© Springer-Verlag, 2004
