Authors

Document Type

Article

Publication Date

2026

DOI

10.1103/jsfs-nq46

Publication Title

Physical Review Letters

Volume

136

Issue

25

Pages

251902

Abstract

Based on 334 pb-¹ of photoproduction data collected with the GlueX detector at Jefferson Lab, we have measured for the first time the cross section of the exclusive reaction 𝛾 + p → φ(1020)π⁺π⁻p by reconstructing the final state K⁺K⁻π⁺π⁻p produced with a photon beam of energies between 8.0 and 11.6 GeV. Based on the measured differential cross section, we have performed a search for the strangeoniumlike exotic candidate Y(2175), recently renamed to φ(2170). This state has been reported by different e⁺e⁻ annihilation experiments and it is addressed here for the first time in a photoproduction experiment. We do not find evidence for this state when using the resonance parameters quoted by the Particle Data Group and provide upper limits on the photoproduction cross section. Instead, we find a structure at a mass of m(φπ+π-)=2.24 GeV/c²

with a statistical significance of about 5σ. The parameters of this structure differ from those quoted by the Particle Data Group for the φ(2170) and are consistent with a previous observation in e+e- annihilation. In addition, there is evidence for a second structure at 1.82 GeV/c².

Rights

© 2026 American Physical Society

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) 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.

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Data Availability

Article states: "The data that support the findings of this article are not publicly available. The data are available from the authors upon reasonable request."

Original Publication Citation

Afzal, F., Albrecht, M., Amaryan, M., Arrigo, S., Arroyave, V., Asaturyan, A., Austregesilo, A., Baldwin, Z., Barbosa, F., Barlow, J., Barriga, E., Barsotti, R., Barton, D., Baturin, V., Berdnikov, V. V., Berger, A., Boeglin, W., Boer, M., Briscoe, W. J.,…Somov, S. (2026). Search for the Y(2175) in the photoproduction cross section measurement of 𝛾p → 𝜙𝜋⁺𝜋⁻p at GlueX. Physical Review Letters, 136(25), Article 251902. https://doi.org/10.1103/jsfs-nq46 

ORCID

0000-0002-5648-0256 (Amaryan), 0009-0003-5562-6465 (Viducic)

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