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| Wang, XY; He, J; Haberzettl, H; He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.; He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China.; He, J (reprint author), Lanzhou Univ, Lanzhou 730000, Peoples R China.; He, J (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. | |
| Analysis of recent CLAS data on Sigma*(1385) photoproduction off a neutron target | |
| Source Publication | PHYSICAL REVIEW C
 |
| Language | 英语 |
| Abstract | Based on recent experimental data obtained by the CLAS Collaboration, the Sigma(1385) photoproduction off a neutron target at laboratory photon energies E-gamma up to 2.5 GeV is investigated in an effective Lagrangian approach including s-, u-, and t-channel Born-term contributions. The present calculation does not take into account any explicit s-channel baryon-resonance contributions; however, in the spirit of duality, we include t-channel exchanges of mesonic Regge trajectories. The onset of the Regge regime is controlled by smoothly interpolating between Feynman-type single-meson exchanges and full-fledged Regge-trajectory exchanges. Gauge invariance broken by the Regge treatment is fully restored by introducing contact-type interaction currents that result from the implementation of local gauge invariance in terms of generalized Ward-Takahashi identities. The cross sections for the gamma n -> K (+) Sigma*(1385)(-) reaction are calculated and compared with experimental results from the CLAS and LEPS collaborations. Despite its simplicity, the present theoretical approach provides a good description of the main features of the data. However, the parameters fitted to the data show that the gauge-invariance-restoring contact term plays a large role, which may point to large contributions from final-state interactions. |
| 2016 | |
| Volume | 93Issue:4Pages:45204 |
| Subject Area | Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevC.93.045204 |
| Indexed By | SCI |
| Funding Organization | Major State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; Major State Basic Research Development Program in China [2014CB845405] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235] ; National Natural Science Foundation of China [11275235] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/21692 |
| Collection | SCI期刊论文 |
| Corresponding Author | He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.; He, J (reprint author), Chinese Acad Sci, Inst Modern Phys, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China.; He, J (reprint author), Lanzhou Univ, Lanzhou 730000, Peoples R China.; He, J (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Wang, XY,He, J,Haberzettl, H,et al. Analysis of recent CLAS data on Sigma*(1385) photoproduction off a neutron target[J]. PHYSICAL REVIEW C,2016,93(4):45204. |
| APA | Wang, XY.,He, J.,Haberzettl, H.,He, J .,He, J .,...&He, J .(2016).Analysis of recent CLAS data on Sigma*(1385) photoproduction off a neutron target.PHYSICAL REVIEW C,93(4),45204. |
| MLA | Wang, XY,et al."Analysis of recent CLAS data on Sigma*(1385) photoproduction off a neutron target".PHYSICAL REVIEW C 93.4(2016):45204. |
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