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Regge signatures from CLAS Λ(1520) photoproduction data at forward angles
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Regge signatures from CLAS Λ(1520) photoproduction data at forward angles
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| dc.contributor.author | Wang, En | |
| dc.contributor.author | Xie, J. J. | |
| dc.contributor.author | Nieves Pamplona, Juan Miguel | |
| dc.date.accessioned | 2016-04-22T12:11:44Z | |
| dc.date.available | 2016-04-22T12:11:44Z | |
| dc.date.issued | 2014 | |
| dc.identifier.citation | Wang, En Xie, J. J. Nieves Pamplona, Juan Miguel 2014 Regge signatures from CLAS Λ(1520) photoproduction data at forward angles Physical Review C 90 6 065203 | |
| dc.identifier.uri | http://hdl.handle.net/10550/53003 | |
| dc.description.abstract | The γp→K+Λ(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)PRVCAN0556-281310.1103/PhysRevC.89.015203]. 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¯ exchange, u-channel Λ(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¯-Regge-trajectory exchange in the t channel leads to an efficient description of the Λ(1520) photoproduction channel over the whole energy and angular ranges accessible in the CLAS experiment. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review C, 2014, vol. 90, num. 6, p. 065203 | |
| dc.subject | Física | |
| dc.title | Regge signatures from CLAS Λ(1520) photoproduction data at forward angles | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2016-04-22T12:11:44Z | |
| dc.identifier.doi | 10.1103/PhysRevC.90.065203 | |
| dc.identifier.idgrec | 101770 | |
| dc.rights.accessRights | open access | es_ES |
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