Determination of the eta He-3 threshold structure from the low energy pd -> eta He-3 reaction
文献类型：期刊论文
| 作者 | Xie, Ju-Jun1,2,3; Liang, Wei-Hong4; Oset, Eulogio1,2,3; Moskal, Pawel5; Skurzok, Magdalena5; Wilkin, Colin6 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2017-01-12 |
| 卷号 | 95页码:9 |
| ISSN号 | 2469-9985 |
| DOI | 10.1103/PhysRevC.95.015202 |
| 英文摘要 | We analyze the data on cross sections and asymmetries for the pd -> eta He-3 reaction close to threshold and look for bound states of the eta He-3 system. Rather than parameterizing the scattering matrix, as is usually done, we develop a framework in which the eta He-3 optical potential is the key ingredient, and its strength, together with some production parameters, are fitted to the available experimental data. The relationship of the scattering matrix to the optical potential is established using the Bethe-Salpeter equation and the eta He-3 loop function incorporates the range of the interaction given by the empirical He-3 density. We find a local Breit-Wigner form of the eta He-3 amplitude T below threshold with a clear peak in vertical bar T vertical bar(2), which corresponds to an eta He-3 binding of about 0.3 MeV and a width of about 3 MeV. By fitting the potential we can also evaluate the eta He-3 scattering length, including its sign, thus resolving the ambiguity in the former analyses. |
| WOS关键词 | QUASI-BOUND STATES ; MESIC NUCLEI ; SCATTERING LENGTH ; NEAR-THRESHOLD ; LIGHT-NUCLEI ; SEARCH ; HELIUM ; SYSTEMS ; MESON ; MODEL |
| 资助项目 | Chinese Academy of Science in the Program of "CAS President's International Fellowship for Visiting Scientists"[2013T2J0012] ; National Natural Science Foundation of China[11565007] ; National Natural Science Foundation of China[11547307] ; National Natural Science Foundation of China[11475227] ; Youth Innovation Promotion Association CAS[2016367] ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds[FIS2011-28853-C02-01] ; European FEDER funds[FIS2011-28853-C02-02] ; European FEDER funds[FIS2014-57026-REDT] ; European FEDER funds[FIS2014-51948-C2-1-P] ; European FEDER funds[FIS2014-51948-C2-2-P] ; Generalitat Valenciana in the program Prometeo[II-2014/068] ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of the EU[283286] ; Polish National Science Center[DEC-2013/11/N/ST2/04152] ; Polish National Science Center[2011/01/B/ST2/00431] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000391859800004 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | Chinese Academy of Science in the Program of "CAS President's International Fellowship for Visiting Scientists" ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Spanish Ministerio de Economia y Competitividad ; European FEDER funds ; Generalitat Valenciana in the program Prometeo ; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym HadronPhysics3) under the Seventh Framework Programme of the EU ; Polish National Science Center |
| 源URL | [http://119.78.100.186/handle/113462/44168]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xie, Ju-Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Ctr Mixto Univ Valencia, CSIC, Inst Invest Paterna, Dept Fis Teor, Apartado 22085, Valencia 46071, Spain 3.Ctr Mixto Univ Valencia, CSIC, Inst Invest Paterna, IFIC, Apartado 22085, Valencia 46071, Spain 4.Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China 5.Jagiellonian Univ, Inst Phys, Ul Stanislawa Lojasiewicza 11, PL-30348 Krakow, Poland 6.UCL, Dept Phys & Astron, London WC1E 6BT, England |
| 推荐引用方式 GB/T 7714 | Xie, Ju-Jun,Liang, Wei-Hong,Oset, Eulogio,et al. Determination of the eta He-3 threshold structure from the low energy pd -> eta He-3 reaction[J]. PHYSICAL REVIEW C,2017,95:9. |
| APA | Xie, Ju-Jun,Liang, Wei-Hong,Oset, Eulogio,Moskal, Pawel,Skurzok, Magdalena,&Wilkin, Colin.(2017).Determination of the eta He-3 threshold structure from the low energy pd -> eta He-3 reaction.PHYSICAL REVIEW C,95,9. |
| MLA | Xie, Ju-Jun,et al."Determination of the eta He-3 threshold structure from the low energy pd -> eta He-3 reaction".PHYSICAL REVIEW C 95(2017):9. |
入库方式： OAI收割
来源：近代物理研究所
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