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.
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页数：8
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