dc.creator | Liu, W. | |
dc.creator | Ko, Che Ming. | |
dc.date.accessioned | 2011-09-13T21:27:44Z | |
dc.date.available | 2011-09-13T21:27:44Z | |
dc.date.issued | 2004 | |
dc.identifier.citation | W. Liu and Che Ming Ko. Phys.Rev.C 69 045204 2004. "Copyright (2004) by the American Physical Society." | en |
dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevC.69.045204 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/126959 | |
dc.description | Journals published by the American Physical Society can be found at http://publish.aps.org/ | en |
dc.description.abstract | The cross sections for production of the pentaquark baryon Xi(5)(+) from the reaction gammap-->K(0)K(0)Xi(5)(+) and of Xi(5)(--) from the reaction gamman-->K(+)K(+)Xi(5)(--) are evaluated in a hadronic model that includes their couplings to both Sigma(K) over bar and Sigma(K) over bar*. Values for these coupling constants are determined from the empirical piNN(1710) and rhoNN(1710) coupling constants by assuming that Xi(5)(+), Xi(5)(--), and N(1710) belong to the same antidecuplet of spin 1/2 and positive parity as the pentaquark Theta(+). Introducing empirical form factors at strong interaction vertices, we obtain a cross section of about 0.03-0.6 nb for the reaction gammap-->K(0)K(0)Xi(5)(+) and about 0.1-0.6 nb for the reaction gamman-->K(+)K(+)Xi(5)(--) at photon energy E-gamma=4.5 GeV, depending on the value of the coupling constant g(K*SigmaXi 5). | en |
dc.language.iso | en | |
dc.publisher | American Physical Society | |
dc.subject | CONSTITUENT QUARK-MODEL | en |
dc.subject | POSITIVE-STRANGENESS | en |
dc.subject | THETA(+) | en |
dc.subject | BARYON | en |
dc.subject | RESONANCE | en |
dc.subject | QCD | en |
dc.subject | COLLISIONS | en |
dc.subject | STATES | en |
dc.subject | Physics | en |
dc.title | Photoproduction of pentaquark cascades from nucleons | en |
dc.type | Article | en |
local.department | Physics and Astronomy | en |