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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
DOI10.1103/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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