Theta^+ baryon production from gamma N and NN scattering

Details Theta^+ baryon production from gamma N and NN scattering Theta^+ baryon production from gamma N and NN scattering

2004-11-29

arxiv.org/abs/nucl-th/0411119v1

Physics

Nuclear Physics

Nuclear Theory

19 pages, 28 figures, Talk given at International Workshop on Quark Nuclear Physics 2004 Feb. 26-27, 2004, Pusan National Univ

Scientific paper

We investigate Theta^+ production via gamma N and NN reactions in order to obtain information on the structure of Theta^+, especially its parity. We observe that the positive parity. Theta^+production provides about ten times total cross sections than those of the negative parity one in both photon and nucleon induced reactions due to P-wave enhancement of the KNTheta vertex. We also consider the model independent method in the nucleon induced reaction to determine the parity of Theta^+ and show clearly distinguishable signals for the two parities.

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