a0(980) physics in semileptonic D0 and D+ decays

被引：9

作者：

Achasov, N. N. ^{[1
]}

Kiselev, A. V. ^{[1
,2
]}

机构：

[1] Sobolev Inst Math, Lab Theoret Phys, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

PHYSICAL REVIEW D | 2018年 / 98卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

MULTIQUARK HADRONS; RADIATIVE DECAYS; 4-QUARK STATES; SCALAR; SEARCH; MESON; PI(0)PI(0)GAMMA;

D O I：

10.1103/PhysRevD.98.096009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The decays D-0 -> d (u) over bare(+)nu -> a(0)(-)(980)e(+)nu -> pi(-)eta e(+)nu and D+ -> d (d) over bare(+)nu -> a(0)(0) (980)e(+)nu -> pi(0)eta e(+)nu (and the charge conjugated ones) are the direct probe of the constituent two-quark components in the a(0)(+/-)(980) and a(0)(0)(980) wave functions. The recent BESIII experiment is the first step in the experimental study of these decays. We suggest adequate formulas for the data analysis and present a variant of eta pi invariant mass distribution when a(0)(980) has no constituent two-quark component at all.

引用

页数：8

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