Branching fractions of semileptonic D and Ds decays from the covariant light-front quark model

被引：0

作者：

Cheng, Hai-Yang ^{[1
]}

Kang, Xian-Wei ^{[1
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 09期

关键词：

ONE-LOOP CHI; POLE ANALYSIS; MESONS; SYMMETRY;

D O I：

10.1140/epjc/s10052-017-5170-5

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：

Based on the predictions of the relevant form factors from the covariant light-front quark model, we show the branching fractions for the D(D-s) -> (P, S, V, A) lve (l = e or mu) decays, where P denotes the pseudoscalar meson, S the scalar meson with a mass above 1 GeV, V the vector meson and A the axial-vector one. Comparison with the available experimental results are made, and we find an excellent agreement. The predictions for other decay modes can be tested in a charm factory, e. g., the BESIII detector. The future measurements will definitely further enrich our knowledge of the hadronic transition form factors as well as the inner structure of the even-parity mesons (S and A).

引用

页数：9

共 51 条

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