Authors

Document Type

Article

Publication Date

2025

DOI

10.1103/2tdc-5by6

Publication Title

Physical Review C

Volume

112

Pages

025203

Abstract

We measure the spin-density matrix elements (SDMEs) for the photoproduction of 𝜙⁡(1020) off of the proton in its decay to 𝐾0𝑆⁢𝐾0𝐿, using 105 pb¹ of data collected with a linearly polarized photon beam using the GlueX experiment. The SDMEs are measured in nine bins of the squared four-momentum transfer 𝑡 in the range −𝑡=0.15−1.0 GeV², providing the first measurement of their 𝑡 dependence for photon beam energies of 𝐸𝛾=8.2−8.8 GeV. We confirm the dominance of Pomeron exchange in this region and put constraints on the contribution of other Regge exchanges. We also find that helicity amplitudes where the helicity of the photon and 𝜙⁡(1020) differ by two units are negligible.

Rights

© 2025 The Authors.

Published under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the authors and the published article's title, journal citation, and DOI. Funded by SCOAP³.

Data Availability

Article states: "The data that support the findings of this article are not publicly available upon publication because it is not technically feasible and/or the cost of preparing, depositing, and hosting the data would be prohibitive within the terms of this research project. The data are available from the authors upon reasonable request."

Original Publication Citation

Afzal, F., Akondi, C., Albrecht, M., Amaryan, M., Arrigo, S., Arroyave, V., Asaturyan, A., Austregesilo, A., Baldwin, Z., Barbosa, F. J., Barlow, J., Barriga, E., Barsotti, R., Barton, D., Baturin, V., Berdnikov, V., Black, T., Boeglin, W., Boër, M., & Briscoe, W. J. (2025). Measurement of spin-density matrix elements in ϕ(1020) → K⁰sK⁰L photoproduction with a linearly polarized photon beam at Eˠ = 8.2-8.8 GeV. Physical Review C, 112, 1-11, Article 025203. https://doi.org/10.1103/2tdc-5by6

ORCID

0000-0002-5648-0256 (Amaryan)

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