期刊
EUROPEAN PHYSICAL JOURNAL C
卷 51, 期 4, 页码 753-774出版社
SPRINGER
DOI: 10.1140/epjc/s10052-007-0367-7
关键词
-
The spin of supersymmetric particles can be determined at e(+)e(-) colliders unambiguously. This is demonstrated for a characteristic set; of non-colored supersymmetric particles - smuons, selectrons, and charginos/neutralinos. The analysis is based on the threshold behavior of the excitation curves for pair production in e(+)e(-) collisions, the angular distribution in the production process and decay angular distributions. In the first step we present the observables in the helicity formalism for the supersymmetric particles. Subsequently we confront the results with corresponding analyses of Kaluza Klein particles in theories of universal extra space dimensions which behave distinctly different from supersymmetric theories. It is shown in the third step that a set of observables can be designed which signal the spin of supersymmetric particles unambiguously without any model assumptions. Finally in the fourth step it is demonstrated that the determination of the spin of supersymmetric particles can be performed experimentally in practice at an e(+)e(-) collider.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据