Role of the n*(1535) in eta ' production | |
Cao, Xu1,3; Lee, Xi-Guo1,2 | |
刊名 | Physical review c |
2008-09-01 | |
卷号 | 78期号:3页码:7 |
ISSN号 | 0556-2813 |
DOI | 10.1103/physrevc.78.035207 |
通讯作者 | Cao, xu(caoxu@impcas.ac.cn) |
英文摘要 | We study the near-threshold eta ' production mechanism in nucleon-nucleon and pi n collisions under the assumption that subthreshold resonance n*(1535) is predominant. in an effective lagrangian approach that gives a reasonable description to the pn -> pn eta and pi(-) p -> n eta reactions, we find that the excitation of n*(1535) resonance from the t- channel p exchange makes the dominate contribution to the pn -> pn eta ' process, and a value of 6.5 for the ratio of s(pp -> pp eta ') to sigma (pp -> pp eta ') is predicted. a strongcoupling strength ofn*(1535) to eta ' n (g(eta ' nn*)(2)/4 pi = 1.1) is extracted from a combined analysis to pp -> pp eta ' and pi n -> n eta ', and the possible implication to the intrinsic component of n*(1535) is explored. |
WOS关键词 | PROTON-PROTON COLLISIONS ; NUCLEON-NUCLEON COLLISIONS ; REACTIONS NEAR-THRESHOLD ; TOTAL CROSS-SECTION ; MESON PRODUCTION ; SYMMETRY-BREAKING ; PP-ETA ; PHOTOPRODUCTION ; EXCHANGE ; SAPHIR |
WOS研究方向 | Physics |
WOS类目 | Physics, Nuclear |
语种 | 英语 |
出版者 | AMER PHYSICAL SOC |
WOS记录号 | WOS:000259692300073 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2385289 |
专题 | 中国科学院大学 |
通讯作者 | Cao, Xu |
作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Natl Lab Heavy Ion Collis, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Cao, Xu,Lee, Xi-Guo. Role of the n*(1535) in eta ' production[J]. Physical review c,2008,78(3):7. |
APA | Cao, Xu,&Lee, Xi-Guo.(2008).Role of the n*(1535) in eta ' production.Physical review c,78(3),7. |
MLA | Cao, Xu,et al."Role of the n*(1535) in eta ' production".Physical review c 78.3(2008):7. |
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