Role of meson interactions in the Ds+ → π+ π+ π- η decay

被引：2

作者：

Song, Jing ^{[1
,2
,3
]}

Feijoo, A. ^{[3
]}

Oset, E. ^{[3
]}

机构：

[1] Beihang Univ, Sch Space & Environm, Beijing 102206, Peoples R China

[2] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China

[3] Ctr Mixto Univ Valencia CSIC, Inst Invest Paterna, Dept Fis Teor, Apartado 22085, Valencia 46071, Spain

来源：

PHYSICAL REVIEW D | 2022年 / 106卷 / 07期

关键词：

F(0)(980); RESONANCES; F(0)(500); D-0;

D O I：

10.1103/PhysRevD.106.074027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform a theoretical study of the D-s(+) ->pi(+)pi(+)pi(-)eta decay. We look first at the basic D-s(+) decay at the quark level from external and internal emission. Then we hadronize a pair or two pairs of q (q) over bar states to have mesons at the end. Posteriorly the pairs of mesons are allowed to undergo final state interaction, by means of which the a(0)(980), f(0)(980), a(1)(1260), and b(1)(1235) resonances are dynamically generated. The G parity is used as a filter of the possible channels, and from those with negative G parity only the ones that can lead to pi(+)pi(+)pi(-)eta at the final state are kept. Using transition amplitudes from the chiral unitary approach that generates these resonances and a few free parameters, we obtain a fair reproduction of the six mass distributions reported in the BESIII experiment.

引用

页数：20

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