Pentaquark {theta}{sup +} production via {gamma}N{yields}K*{theta}{sup +}(3/2{sup {+-}})
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics and Nuclear Physics and Radiation Technology Institute (NuRI), Pusan National University, Busan 609-735 (Korea, Republic of)
- Research Center for Nuclear Physics (RCNP), Ibaraki, Osaka 567-0047 (Japan)
We study the photoproduction of the exotic pentaquark {theta}{sup +} baryon with the vector kaon, assuming that the quantum numbers of the {theta}{sup +} to be J{sup P}=3/2{sup {+-}} and J{sup P}=1/2{sup +}. Scalar meson {kappa}(800) exchange is also taken into account. In contrast with the {gamma}N{yields}K{theta}{sup +}(3/2{sup {+-}}) process, the large suppression from the proton target is not observed in the total cross sections. We also suggest a method to determine which meson exchange is the most dominant by analyzing the polarizations of incident photon and outgoing K*. We find that {kappa} exchange turns out to be prominent when the polarizations of the photon and K* are aligned to be parallel, whereas K exchange predominates when they are perpendicular to each other.
- OSTI ID:
- 20863743
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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