Study on Ξcc→ Ξc and Ξcc→ Ξc′ weak decays in the light-front quark model

被引：0

作者：

Ke, Hong-Wei ^{[1
]}

Lu, Fang ^{[1
]}

Liu, Xiao-Hai ^{[1
]}

Li, Xue-Qian ^{[2
]}

机构：

[1] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China

[2] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 02期

基金：

中国国家自然科学基金;

关键词：

MESONS; CHARM;

D O I：

10.1140/epjc/s10052-020-7699-y

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this work we study the weak decays of Xi cc ->Xi c and Xi cc ->Xi c ' in the light-front quark model. Generally, a naive, but reasonable conjecture suggests that the cc subsystem in Xi cc ( us pair in Xi c(') stands as a diquark with definite spin and color assignments. During the concerned processes, the diquark of the initial state is not a spectator, namely must be broken. A Racah transformation would decompose the original (cc)q into a combination of c(cq) components. Thus we may deal with the decaying c quark alone while keeping the (cq) subsystem as a spectator. With the re-arrangement of the inner structure we calculate the form factors numerically and then obtain the rates of semi-leptonic decays and non-leptonic decays, which will be measured in the future.

引用

页数：11

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