Physical Review C
We report on the measurement of spin density matrix elements of the Λ(1520) in the photoproduction reaction γp→Λ(1520)K+, via its subsequent decay to K−p. The measurement was performed as part of the GlueX experimental program in Hall D at Jefferson Laboratory using a linearly polarized photon beam with Eγ = 8.2 GeV–8.8 GeV. These are the first such measurements in this photon energy range. Results are presented in bins of momentum transfer squared, − (t − t0). We compare the results with a Reggeon exchange model and determine that natural exchange amplitudes are dominant in Λ(1520) photoproduction.
Original Publication Citation
Adhikari, S. Akondi, C.S., Albrecht, M. ... Zihlmann, B., Glazier, D.I. & Mathieu, V. Measurement of spin density matrix elements in Λ(1520) photoproduction at 8.2-8.8 GeV. Physical Review C, 105(3), 1-10, Article 035201. https://doi.org/10.1103/PhysRevC.105.035201
Adhikari, Shankar; Akondi, C. S.; Albrecht, M.; Amaryan, Moskov; Viducic, Tyler; Zihlmann, B.; Et al.; GlueX Collaboration; Glazier, D. I.; and Mathieu, V., "Measurement of Spin Density Matrix Elements in Λ(1520) Photoproduction at 8.2-8.8 GeV" (2022). Physics Faculty Publications. 578.