Particle production in nucleon-antinucleon reactions

Autor:	K Holinde
Rok vydání:	1993
Předmět:	Physics Particle physics Annihilation Meson High Energy Physics::Phenomenology Nuclear Theory Constituent quark Strangeness production Condensed Matter Physics Atomic and Molecular Physics and Optics Nuclear physics Baryon Particle Production (computer science) Nucleon Mathematical Physics
Zdroj:	Physica Scripta. 48:164-168
ISSN:	1402-4896 0031-8949
DOI:	10.1088/0031-8949/48/2/007
Popis:	This talk reviews some recent developments in our understanding of particle production in nucleon-antinucleon (N) processes. First, we look at strangeness production processes p → Y (Y= Λ, Σ) near threshold, and compare transition mechanisms based on either meson exchange or the constituent quark model. It is pointed out that the depolarization parameter Dnn in p → bar-ΛΛ can be used to discriminate between both scenarios. In the second part, we turn our attention to the annihilation of the N system into two mesons, again from a conventional viewpoint based on baryon exchange and in the framework of a constituent quark model with rearrangement and annihilation. It is stressed that a realistic and consistent inclusion of initial- and final-state interactions is required before one can reliably explore the limits of such annihilation models.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::114c320568595b20b96c81483efa59fa https://doi.org/10.1088/0031-8949/48/2/007 Zobrazit plný text záznamu