QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra
文献类型：期刊论文
| 作者 | Finazzo, Stefano I.1; Nielsen, Marina1; Liu, Xiang2,3,4 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2011-06-27 |
| 卷号 | 701页码:101-106 |
| ISSN号 | 0370-2693 |
| 关键词 | Non-perturbative methods Exotic-charmonium states QCD sum rules |
| DOI | 10.1016/j.physletb.2011.05.042 |
| 英文摘要 | Using the QCD sum rules we test if the charmonium-like structure Y(4274), observed in the J/psi phi invariant mass spectrum, can be described with a D(s)(D) over bar (s0)(2317)+ h.c. molecular current with J(PC) = 0(-+). We consider the contributions of condensates up to dimension ten and we work at leading order in alpha(s). We keep terms which are linear in the strange quark mass m(s). The mass obtained for such state is mD(s)D(s0) = (4.78 +/- 0.54) GeV. We also consider a molecular 0(-+) D (D) over bar (0)(2400)+ h.c. current and we obtain m(DD0) = (4.55 +/- 0.49) GeV. Our study shows that the newly observed Y(4274) in the J/psi phi invariant mass spectrum can be, considering the uncertainties, described using a molecular charmonium current. (C) 2011 Elsevier B.V. All rights reserved. |
| WOS关键词 | TAU-DECAYS ; MESON ; SYMMETRY ; ALPHA(S) ; STATE |
| 资助项目 | FAPESP ; CNPq, Brazil ; National Natural Science Foundation of China[11035006] ; National Natural Science Foundation of China[11047606] ; Ministry of Education of China (FANEDD)[200924] ; Ministry of Education of China (DPFIHE)[20090211120029] ; Ministry of Education of China (NCET)[NCET-10-0442] ; Fundamental Research Funds for the Central Universities |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000292719700010 |
| 资助机构 | FAPESP ; CNPq, Brazil ; National Natural Science Foundation of China ; Ministry of Education of China (FANEDD) ; Ministry of Education of China (DPFIHE) ; Ministry of Education of China (NCET) ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://119.78.100.186/handle/113462/33760]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Nielsen, Marina |
| 作者单位 | 1.Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil 2.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China 4.CAS, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Finazzo, Stefano I.,Nielsen, Marina,Liu, Xiang. QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra[J]. PHYSICS LETTERS B,2011,701:101-106. |
| APA | Finazzo, Stefano I.,Nielsen, Marina,&Liu, Xiang.(2011).QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra.PHYSICS LETTERS B,701,101-106. |
| MLA | Finazzo, Stefano I.,et al."QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra".PHYSICS LETTERS B 701(2011):101-106. |
入库方式： OAI收割
来源：近代物理研究所
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