| Chromopolarizability and pi pi final state interaction |
| Guo FK(郭奉坤); Shen PN(沈彭年); Jiang HQ(姜焕清); Guo, FK; Shen, PN; Chiang, HC
|
| 2006
|
| 发表期刊 | PHYSICAL REVIEW D
 |
| 卷号 | 74期号:1页码:14011 |
| 通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
; CCAST, World Lab, Beijing 100080, Peoples R China
; SW Univ, Chongqing 400715, Peoples R China
; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
; Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
|
| 文章类型 | Article
|
| 摘要 | The chromopolarizability of a quarkonium state is a measure of the amplitude of the E1-E1 chromoelectric interaction of the quarkonium with soft gluon fields and can be measured in the heavy quarkonium decays. Based on the chiral unitary approach, formulas with modification caused by the S wave pi pi final state interaction (FSI) for measuring the chromopolarizabilities are given. It is shown that the effect of the S wave pi pi FSI is very important in extracting chromopolarizabilities from the experimental data. The resultant values with the FSI are reduced to about 1/3 of those determined without the FSI. The consequences of the FSI correction in the J/psi-nucleon scattering near the threshold are also discussed. The estimated lower bound of the total cross section is reduced from about 17 mb to 2.9 mb, which agrees with the experimental data point and is compatible with the previously estimated values in the literature. In order to understand the interaction of heavy quarkonia with light hadrons at low energies better and to obtain the chromopolarizabilities of quarkonia accurately, more data should be accumulated. This can be done in the J/psi ->pi(+)pi(-)l(+)l(-) decay at BES-III and CLEO-c and in the Upsilon ->pi(+)pi(-)l(+)l(-) decay at B factories. |
| 学科领域 | Astronomy & Astrophysics; Physics
|
| DOI | 10.1103/PhysRevD.74.014011
|
| URL | 查看原文
|
| 语种 | 英语
|
| WOS研究方向 | Astronomy & Astrophysics
; Physics
|
| WOS类目 | Astronomy & Astrophysics
; Physics, Particles & Fields
|
| WOS记录号 | WOS:000239511800040
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/240424
|
| 专题 | 理论物理室
|
| 作者单位 | 中国科学院高能物理研究所
|
推荐引用方式
GB/T 7714 |
Guo FK,Shen PN,Jiang HQ,et al. Chromopolarizability and pi pi final state interaction[J]. PHYSICAL REVIEW D,2006,74(1):14011.
|
| APA |
郭奉坤,沈彭年,姜焕清,Guo, FK,Shen, PN,&Chiang, HC.(2006).Chromopolarizability and pi pi final state interaction.PHYSICAL REVIEW D,74(1),14011.
|
| MLA |
郭奉坤,et al."Chromopolarizability and pi pi final state interaction".PHYSICAL REVIEW D 74.1(2006):14011.
|
修改评论