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The role of vector-baryon channels and resonances in the γp→K0Σ+ and γn→K0Σ0 reactions near the K*Λ threshold
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The role of vector-baryon channels and resonances in the γp→K0Σ+ and γn→K0Σ0 reactions near the K*Λ threshold
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| dc.contributor.author | Ramos Gómez, Àngels | |
| dc.contributor.author | Oset Báguena, Eulogio | |
| dc.date.accessioned | 2014-02-17T13:38:39Z | |
| dc.date.available | 2014-02-17T13:38:39Z | |
| dc.date.issued | 2013 | |
| dc.identifier.citation | Ramos, A. Oset Báguena, Eulogio 2013 The role of vector-baryon channels and resonances in the γp→K0Σ+ and γn→K0Σ0 reactions near the K*Λ threshold Physics Letters B 727 1-3 287 292 | |
| dc.identifier.uri | http://hdl.handle.net/10550/32993 | |
| dc.description.abstract | We have studied the γp→K0Σ+ reaction in the energy region around the K*Λ and K*Σ thresholds, where the CBELSA/TAPS cross section shows a sudden drop and the differential cross section experiences a transition from a forward-peaked distribution to a flat one. Our coupled-channel model incorporates the dynamics of the vector meson-baryon interaction which is obtained from the hidden gauge formalism. We find that the cross section in this energy region results from a delicate interference between amplitudes having K*Λ and K*Σ intermediate states. The sharp downfall is dictated by the presence of a nearby N* resonance produced by our model, a feature that we have employed to predict its properties. We also show results for the complementary γn→K0Σ0 reaction, the measurement of which would test the mechanism proposed in this work. | |
| dc.relation.ispartof | Physics Letters B, 2013, vol. 727, num. 1-3, p. 287-292 | |
| dc.subject | Física | |
| dc.title | The role of vector-baryon channels and resonances in the γp→K0Σ+ and γn→K0Σ0 reactions near the K*Λ threshold | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-02-17T13:38:39Z | |
| dc.identifier.doi | 10.1016/j.physletb.2013.10.012 | |
| dc.identifier.idgrec | 093162 | |
| dc.rights.accessRights | open access | es_ES |
| dc.identifier.url | 10.1016/j.physletb.2013.10.012 |
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