Searching for the bottom counterparts of X(3872) and Y(4260) via π+π-Υ

被引：50

作者：

Hou, Wei-Shu ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.74.017504

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The X(3872) and Y(4260), among a host of charmoniumlike mesons, have rather unusual properties: the former has very small total width, the latter has large rate into pi(+)pi(-)J/psi channel. It would not be easy to settle between the many suggested explanations for their composition. We point out that discovering the bottom counterparts should shed much light on the issue. The narrow state can be searched for at the Tevatron via p (p) over bar ->pi(+)pi(-)Upsilon+X, but the LHC should be much more promising. The state with large overlap with Upsilon can be searched for at B factories via radiative return e(+)e(-)->gamma(ISR)+pi(+)pi(-)Upsilon on Upsilon(5S), or by e(+)e(-)->pi(+)pi(-)Upsilon direct scan.

引用

页数：4

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