Regge signatures from CLAS lambda(1520) photoproduction data at forward angles
文献类型：期刊论文
| 作者 | Wang, E ; Xie, JJ ; Nieves, J |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2014 |
| 卷号 | 90期号:6 |
| 关键词 | BARYON RESONANCES PARTICLE STATES |
| ISSN号 | 0556-2813 |
| 通讯作者 | Wang, E (reprint author), Univ Valencia, Ctr Mixto CSIC, Inst Fis Corpuscular IFIC, Inst Invest Paterna, Apartado 22085, E-46071 Valencia, Spain. |
| 英文摘要 | The gamma p -> K(+)A(1520) reaction mechanism is investigated within a Regge-effective Lagrangian hybrid approach based on our previous study of this reaction [Phys. Rev. C 89, 015203 (2014)]. Near threshold and for large K+ angles, the data from both the Continuous Electron Beam Accelerator Facility large acceptance spectrometer (CLAS) and the laser electron photon beamline at SPring-8 (LEPS) can be successfully described by considering the contributions from the contact, t-channel (K) over bar exchange, u-channel A(1115) hyperon pole, and s-channel nucleon pole and N*(2120) resonance contributions. However, for higher energies and forward K+ angles, systematic discrepancies with data appear, which hint at the possible existence of sizable quark-gluon string mechanism effects. We show how the inclusion of a (K) over bar -Regge-trajectory exchange in the t channel leads to an efficient description of the A(1520) photoproduction channel over the whole energy and angular ranges accessible in the CLAS experiment. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | DGI; FEDER [FIS2011-28853-C02-01, FIS2011-28853-C02-02]; Spanish Ingenio-Consolider Program CPAN [C5D2007-00042]; Generalitat Valenciana [PROMETE01200910090]; National Natural Science Foundation of China [11105126]; European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter under the Seventh Framework Programme of the E.U [283286] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevC.90.065203 |
| 语种 | 英语 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15548]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Wang, E,Xie, JJ,Nieves, J. Regge signatures from CLAS lambda(1520) photoproduction data at forward angles[J]. PHYSICAL REVIEW C,2014,90(6). |
| APA | Wang, E,Xie, JJ,&Nieves, J.(2014).Regge signatures from CLAS lambda(1520) photoproduction data at forward angles.PHYSICAL REVIEW C,90(6). |
| MLA | Wang, E,et al."Regge signatures from CLAS lambda(1520) photoproduction data at forward angles".PHYSICAL REVIEW C 90.6(2014). |
入库方式： OAI收割
来源：理论物理研究所
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