Factorization in the model of unstable particles with smeared mass

Details Factorization in the model of unstable particles with smeared mass Factorization in the model of unstable particles with smeared mass

2011-09-07

arxiv.org/abs/1109.1541v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 6 figures

Scientific paper

We study the processes with unstable particles in intermediate states. It is shown that the amplitudes squared of such processes factor exactly in the framework of the model of unstable particles with smeared masses. Decay widths and cross sections can then be represented in a universal factorized form for an arbitrary set of interacting particles. This exact factorization is caused by specific structure of propagators in the model. We formulate the factorization method and perform a phenomenological analysis of the factorization effects. The factorization method considerably simplifies calculations while leading to compact and reasonable results.

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