Excited D(sub s) (and Pentaquarks) in Chiral Perturbation Theory.

Mehen, T.

Technical Information Center Oak Ridge Tennessee

关键词: Chiral symmetry;    Quarks;    Perturbation theory;    Angular momentum;    Branching ratio;   

RP-ID  :  DE2005841359

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The author presents results of a heavy hadron chiral perturbation theory analysis of the decays and masses of the recently discovered excited charm mesons. The present data on the electromagnetic branching ratios are consistent with heavy quark symmetry predictions and disfavor a molecular interpretation of these states. He also discusses model independent predictions for the strong decays of pentaquarks in the 10-bar representation of SU(3) which can be used to constrain the angular momentum and parity quantum numbers of these states.