Cross section line shape of e+ e- → xc0ω around the Y (4260) mass region

被引：16

作者：

Cleven, Martin ^{[1
,2
,3
,4
]}

Zhao, Qiang ^{[1
,2
,5
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China

[3] Univ Barcelona, Dept Fis Quant & Astrofis, Barcelona 08028, Spain

[4] Univ Barcelona, Inst Ciencies Cosmos, Barcelona 08028, Spain

[5] Hunan Normal Univ, SICQEA, Changsha 410081, Hunan, Peoples R China

来源：

PHYSICS LETTERS B | 2017年 / 768卷

基金：

中国国家自然科学基金;

关键词：

OPEN CHARM; MESONS; Y(4260); DECAY;

D O I：

10.1016/j.physletb.2017.02.041

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We demonstrate that the recent measurement of the cross section line shapes of e(+) e(-)-> x(c0)(omega) can be be naturally explained by the molecular picture for Y(4260) where the Y(4260) is treated as a hadronic molecule dominated by (D) over barD(1)(2420) + c.c. This result is consistent with properties extracted for Y(4260) as the (D) over tildeD(1)(2420) + c. c. molecular state in other reactions such as e(+) e(-) -> J/psi pi pi, h(c)pi pi, (D) over barD* pi + c.c., and gamma X(3872). (C) 2017 The Authors. Published by Elsevier B.V.

引用

页码：52 / 56

页数：5