Complete sets of observables in pseudoscalar-meson photoproduction

被引：3

作者：

Vrancx, Tom ^{[1
]}

Ryckebusch, Jan ^{[1
]}

Nys, Jannes ^{[1
]}

机构：

[1] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium

来源：

MENU 2013 - 13TH INTERNATIONAL CONFERENCE MESON-NUCLEON PHYSICS AND THE STRUCTURE OF THE NUCLEON | 2014年 / 73卷

关键词：

D O I：

10.1051/epjconf/20147304011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Pseudoscalar-meson photoproduction is characterized by four complex reaction amplitudes. A complete set is a minimum theoretical set of observables that allow to determine these amplitudes unambiguously. It is studied whether complete sets remain complete when experimental uncertainty is involved. To this end, data from the GRAAL Collaboration and simulated data from a realistic model, both for the gamma p -> K+ Lambda reaction, are analyzed in the transversity representation of the reaction amplitudes. It is found that only the moduli of the transversity amplitudes can be determined without ambiguity but not the relative phases.

引用

页数：4

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