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Resonance interpretation of the bump structure in the $��p \to K^+ ��(1520)$ differential cross section
- Publication Year :
- 2011
- Publisher :
- arXiv, 2011.
-
Abstract
- We investigate the $��(1520)$ photoproduction in the $\vec�� p \to K^+ ��(1520)$ reaction within the effective Lagrangian method near threshold. In addition to the "background" contributions from the contact, $t-$channel $K$ exchange, and $s-$channel nucleon pole terms, which were already considered in previous works, the contribution from the nucleon resonance $N^*(2080)$ (spin-parity $J^P = 3/2^-$) is also considered. We show that the inclusion of the nucleon resonance $N^*(2080)$ leads to a fairly good description of the new LEPS differential cross-section data, and that these measurements can be used to determine some of the properties of this latter resonance.<br />4 pages, 2 figures. Proceeding for NSTAR 2011. One typo corrected
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........dd53cfe2f9779fb295c4ce4a449b3d6f
- Full Text :
- https://doi.org/10.48550/arxiv.1107.5403