Indications of a four-quark structure for the X(3872) and X(3876) particles from recent Belle and BABAR data

被引：71

作者：

Maiani, L. ^{[1
]}

Polosa, A. D.

Riquer, V.

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[2] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.99.182003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent results by Belle and BABAR point to the existence of a second X particle decaying in D-0(D) over bar (0)pi(0), a few MeV above the X(3872). We identify the two X states with the neutral particles predicted by the four-quark model and show that production and decays are consistent with this assignment. We consider the yet-to-be-observed charged partners and give new hints on how to look for them.

引用

页数：4

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