Volume 81, Number 6, March 2008
|Number of page(s)||3|
|Section||The Physics of Elementary Particles and Fields|
|Published online||25 February 2008|
The complex relation between production and scattering amplitudes
Centro de Física Teórica, Departamento de Física, Universidade de Coimbra - P-3004-516 Coimbra, Portugal
2 Centro de Física das Interações Fundamentais, Instituto Superior Técnico, Technical University of Lisbon P-1049-001 Lisboa, Portugal
Accepted: 27 January 2008
The constraint implied by the unitarity relation is derived for a three-body production amplitude A that consists of a complex linear combination of elements of the two-body scattering amplitude T. We conclude that the unitarity relation does not impose a realness condition on the coefficients in the expansion of A in terms of T.
PACS: 11.80.Gw – Multichannel scattering / 11.55.Ds – Exact S matrices / 13.75.Lb – Meson-meson interactions
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.