The role of Delta(++)* (1620) resonances in pp -> nK(+)Sigma(+) reaction and its important implications
文献类型：期刊论文
| 作者 | Xie, Ju-Jun; Zou, Bing-Song |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2007-06-14 |
| 卷号 | 649页码:405-412 |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2007.04.035 |
| 英文摘要 | The pp -> nK(+)Sigma(+) reaction is a very good isospin 3/2 filter for studying Delta(++*) decaying to K+Sigma(+). With an effective Lagrangian approach, contributions from a previous ignored sub-K+Sigma(+)-threshold resonance Delta(++*) (1620)1/2(-) are fully included in addition to those already considered in previous calculations. It is found that the Delta(++*)(1620)1/2(-) resonance gives an overwhelmingly dominant contribution for energies very close to threshold, with a very important contribution from the t-channel rho exchange. This solves the problem that all previous calculations seriously underestimate the near-threshold cross section by order(s) of magnitude. Many important implications of the results are discussed. (c) 2007 Elsevier B.V. All rights reserved. |
| WOS关键词 | PARTIAL-WAVE ANALYSIS ; NUCLEON-NUCLEON COLLISIONS ; HEAVY-ION COLLISIONS ; HYPERON PRODUCTION ; KAON PRODUCTION ; NEAR-THRESHOLD ; STRANGENESS PRODUCTION ; PP COLLISIONS ; MODEL ; DECAYS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000247390800010 |
| 源URL | [http://119.78.100.186/handle/113462/28163]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Zou, Bing-Song |
| 作者单位 | 1.CAS, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Ju-Jun,Zou, Bing-Song. The role of Delta(++)* (1620) resonances in pp -> nK(+)Sigma(+) reaction and its important implications[J]. PHYSICS LETTERS B,2007,649:405-412. |
| APA | Xie, Ju-Jun,&Zou, Bing-Song.(2007).The role of Delta(++)* (1620) resonances in pp -> nK(+)Sigma(+) reaction and its important implications.PHYSICS LETTERS B,649,405-412. |
| MLA | Xie, Ju-Jun,et al."The role of Delta(++)* (1620) resonances in pp -> nK(+)Sigma(+) reaction and its important implications".PHYSICS LETTERS B 649(2007):405-412. |
入库方式： OAI收割
来源：近代物理研究所
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