Does the enhancement observed in gamma gamma -> D(D)over-bar contain two P-wave higher charmonia?
文献类型：期刊论文
| 作者 | Chen, Dian-Yong1,2; He, Jun1,2 ; Liu, Xiang1,3; Matsuki, Takayuki4
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2012-11-01 |
| 卷号 | 72 |
| ISSN号 | 1434-6044 |
| DOI | 10.1140/epjc/s10052-012-2226-4 |
| 文献子类 | Article |
| 英文摘要 | We solve a new puzzle raised by the observation of an enhancement structure Z(3930) in gamma gamma -> D (D) over bar. If categorizing Z(3930) as chi(c2)(2P), as suggested by Belle and BaBar, we must explain why chi(c0)(2P) dominantly decaying into D (D) over bar is missing in the D (D) over bar invariant mass spectrum. In this work, we propose that the Z(3930) enhancement structure may contain two P-wave higher charmonia chi(c0)(2P) and chi(c2)(2P). We show that this assumption is supported by our analysis of the D (D) over bar invariant mass spectrum and cos theta* distribution of gamma gamma -> D (D) over bar. This observation would not only provide valuable information of two P-wave higher charmonia chi(c0)(2P) and chi(c2)(2P), but also serve as the crucial test of our novel proposal to the observed enhancement structure Z(3930), especially at the forthcoming BelleII and the approved SuperB. |
| 资助项目 | Fok Ying-Tong Education Foundation[131006] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000312074800028 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.186/handle/113462/48993]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Chen, Dian-Yong |
| 作者单位 | 1.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Nucl Theory Grp, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 4.Tokyo Kasei Univ, Itabashi Ku, Tokyo 1738602, Japan |
| 推荐引用方式 GB/T 7714 | Chen, Dian-Yong,He, Jun,Liu, Xiang,et al. Does the enhancement observed in gamma gamma -> D(D)over-bar contain two P-wave higher charmonia?[J]. EUROPEAN PHYSICAL JOURNAL C,2012,72. |
| APA | Chen, Dian-Yong,He, Jun,Liu, Xiang,&Matsuki, Takayuki.(2012).Does the enhancement observed in gamma gamma -> D(D)over-bar contain two P-wave higher charmonia?.EUROPEAN PHYSICAL JOURNAL C,72. |
| MLA | Chen, Dian-Yong,et al."Does the enhancement observed in gamma gamma -> D(D)over-bar contain two P-wave higher charmonia?".EUROPEAN PHYSICAL JOURNAL C 72(2012). |
入库方式： OAI收割
来源：近代物理研究所
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