Factorization effects in a model of unstable particles

Autor:	Kuksa, V. I., Volchanskiy, N. I.
Rok vydání:	2009
Předmět:	High Energy Physics - Phenomenology
Zdroj:	Int.J.Mod.Phys.A25:2049-2062,2010
Druh dokumentu:	Working Paper
DOI:	10.1142/S0217751X1004824X
Popis:	The effects of factorization are considered within the framework of the model of unstable particles with a smeared mass. It is shown that two-particle cross section and three-particle decay width can be described by the universal factorized formulae for an unstable particles of an arbitrary spin in an intermediate state. The exact factorization is caused by the specific structure of the model unstable-particle propagators. This result is generalized to complicated scattering and decay-chain processes with unstable particles in intermediate states. We analyze applicability of the method and evaluate its accuracy. Comment: 13 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0910.0453 Zobrazit plný text záznamu View this record from Arxiv