Decay widths of the spin-2 partners of the X(3872)
文献类型：期刊论文
| 作者 | Albaladejo, M; Guo, FK ; Hidalgo-Duque, C; Nieves, J; Valderrama, MP
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2015 |
| 卷号 | 75期号:11页码:547 |
| 通讯作者 | Albaladejo, M (reprint author), Univ Valencia, Inst Invest Paterna, Ctr Mixto CSIC, Inst Fis Corpuscular IFIC, Aptd 22085, Valencia 46071, Spain. |
| 英文摘要 | We consider the X(3872) resonance as a J(PC) = 1(++) D (D) over bar* hadronic molecule. According to heavy quark spin symmetry, there will exist a partner with quantum numbers 2(++), X-2, which would be a D*(D) over bar* loosely bound state. The X-2 is expected to decay dominantly into D (D) over bar, D (D) over bar* and (D) over barD* in d-wave. In this work, we calculate the decay widths of the X-2 resonance into the above channels, as well as those of its bottom partner, X-b2, the mass of which comes from assuming heavy flavor symmetry for the contact terms. We find partial widths of the X-2 and X-b2 of the order of a few MeV. Finally, we also study the radiative X-2 -> D (D) over bar*gamma. and X-b2 -> (B) over bar B*gamma decays. These decay modes are more sensitive to the long-distance structure of the resonances and to the D (D) over bar* or B (B) over bar* final state interaction. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 关键词[WOS] | QCD SUM-RULES ; HEAVY-QUARK ; MOLECULES ; STATES ; CHARMONIUM ; LATTICE ; MODEL |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/20785]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Albaladejo, M,Guo, FK,Hidalgo-Duque, C,et al. Decay widths of the spin-2 partners of the X(3872)[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(11):547. |
| APA | Albaladejo, M,Guo, FK,Hidalgo-Duque, C,Nieves, J,&Valderrama, MP.(2015).Decay widths of the spin-2 partners of the X(3872).EUROPEAN PHYSICAL JOURNAL C,75(11),547. |
| MLA | Albaladejo, M,et al."Decay widths of the spin-2 partners of the X(3872)".EUROPEAN PHYSICAL JOURNAL C 75.11(2015):547. |
入库方式： OAI收割
来源：理论物理研究所
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