Document Type

Article

Publication Date

2017

DOI

10.1016/j.physletb.2017.05.029

Publication Title

Physics Letters B

Volume

771

Pages

142-150

Abstract

The reaction 𝛄p → K⁺Λ was measured using the CLAS detector for photon energies between the threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. For the first time, spin-density matrix elements have been extracted for this reaction. Differential cross sections, spin density matrix elements, and the Λ recoil polarization are compared with theoretical predictions using the BnGa partial wave analysis. The main result is the evidence for significant contributions from N(1895)1/2- and N(2100)1/2⁺ to the reaction. Branching ratios for decays into KΛ for these resonances and further resonances are reported.

Rights

© 2017 The Author. This is an open access article under the Creative Commons Attribution 4.0 International (CC BY 4.0) License. Funded by SCOAP³.

Original Publication Citation

Anisovich, A. V., Hicks, K., Klempt, E., Nikonov, V. A., Sarantsev, A., Tang, W., Adikaram, D., Akbar, Z., Amaryan, M. J., Anefalos Pereira, S., Badui, R. A., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Briscoe, W. J., Burkert, V. D., Carman, D. S.,…Zonta, I. (2017). Differential cross sections and polarization observables from CLAS K photoproduction and the search for new N states. Physics Letters B, 771, 142-150. https://doi.org/https://doi.org/10.1016/j.physletb.2017.05.029

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