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Suppression of Theta^+(J^P=3/2^(+,-)) photoproduction from the proton

Seung-Il Nam·Atsushi Hosaka·Hyun-Chul Kim
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Abstract

We investigate the photoproduction of Theta^+ from the proton and neutron, gamma N -> Kbar Theta^+. Assuming that spin and parity of Theta^+ are J^P = 3/2^(+,-), it is shown that the production from the proton is strongly suppressed as compared with that from the neutron. This could provide a possible explanation for the null results of the recent CLAS experiment in finding Theta^+ via the reaction gamma p -> Kbar^0 Theta^+.

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Seung-Il Nam, Atsushi Hosaka, Hyun-Chul Kim. 2005-06-06. Suppression of Theta^+(J^P=3/2^(+,-)) photoproduction from the proton. https://doi.org/10.1016/j.physletb.2005.12.059

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