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Search for the Y(2175) in the Photoproduction Cross Section Measurement of γp→ϕπ^{+}π^{-}p at GlueX.

Journal articles  - Journal Article
Afzal, F; Albrecht, M; Amaryan, M; Arrigo, S; Arroyave, V; Asaturyan, A; Austregesilo, A; Baldwin, Z; Barbosa, F; Barlow, J; Barriga, E; Li, H ...
Published in: Physical review letters
June 2026
Published version (DOI)

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/c^{2} 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/c^{2}.

Duke Scholars

Haiyan Gao
Author Haiyan Gao Physics
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Published In

Physical review letters

DOI

10.1103/jsfs-nq46

EISSN

1079-7114

ISSN

0031-9007

Publication Date

June 2026

Volume

136

Issue

25

Start / End Page

251902

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
 

Citation

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Afzal, F., Albrecht, M., Amaryan, M., Arrigo, S., Arroyave, V., Asaturyan, A., … GlueX Collaboration. (2026). Search for the Y(2175) in the Photoproduction Cross Section Measurement of γp→ϕπ^{+}π^{-}p at GlueX. Physical Review Letters, 136(25), 251902. https://doi.org/10.1103/jsfs-nq46
Afzal, F., M. Albrecht, M. Amaryan, S. Arrigo, V. Arroyave, A. Asaturyan, A. Austregesilo, et al. “Search for the Y(2175) in the Photoproduction Cross Section Measurement of γp→ϕπ^{+}π^{-}p at GlueX.” Physical Review Letters 136, no. 25 (June 2026): 251902. https://doi.org/10.1103/jsfs-nq46.
Afzal F, Albrecht M, Amaryan M, Arrigo S, Arroyave V, Asaturyan A, et al. Search for the Y(2175) in the Photoproduction Cross Section Measurement of γp→ϕπ^{+}π^{-}p at GlueX. Physical review letters. 2026 Jun;136(25):251902.
Afzal, F., et al. “Search for the Y(2175) in the Photoproduction Cross Section Measurement of γp→ϕπ^{+}π^{-}p at GlueX.” Physical Review Letters, vol. 136, no. 25, June 2026, p. 251902. Epmc, doi:10.1103/jsfs-nq46.
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 VV, Berger A, Boeglin W, Boer M, Briscoe WJ, Britton T, Brunner R, Cao S, Chen C, Chudakov E, Chung G, Cole PL, Cortes O, Crede V, Dalton MM, Darulis D, Deur A, Dobbs S, Dolgolenko A, Dugger M, Dzhygadlo R, Ebersole D, Edo M, Egiyan H, Eugenio P, Fabrizi A, Fanelli C, Fang S, Fritsch M, Furletov S, Gan L, Gao H, Gardner A, Gasparian A, Glazier DI, Gleason C, Goetzen K, Grube B, Guo J, Hamdi A, Hernandez J, Hernandez K, Hoffman ND, Hornidge D, Huber GM, Hurck P, Imoehl W, Ireland DG, Ito MM, Jaegle I, Jarvis NS, Jeske T, Jing M, Jones RT, Kakoyan V, Kalicy G, Kang X, Khachatryan V, Kourkoumelis C, LaDuke A, Larin I, Lawrence D, Lersch DI, Li H, Liu B, Livingston K, Lorenti L, Lyubovitskij V, Marukyan H, Matveev V, McCaughan M, McCracken M, Meyer CA, Miskimen R, Mitchell RE, Moran P, Nerling F, Ng L, Nissen E, Orešić S, Ostrovidov AI, Papandreou Z, Pentchev L, Peters KJ, Puthiya Veetil L, Rakshit S, Reinhold J, Remington A, Ritman J, Rodriguez G, Saldana K, Schadmand S, Schertz AM, Scheuer K, Schmidt A, Schumacher RA, Schwiening J, Scott M, Septian N, Sharp P, Shen VJ, Shen X, Shepherd MR, Sikes J, Singh H, Smith A, Smith ES, Somov A, Somov S, Stevens JR, Strakovsky II, Sumner B, Suresh K, Tarasov VV, Taylor S, Teymurazyan A, Thiel A, Thomson M, Viducic T, Whitlatch T, Wunderlich Y, Yu B, Zarling J, Zhang Z, Zhou X, Zihlmann B, GlueX Collaboration. Search for the Y(2175) in the Photoproduction Cross Section Measurement of γp→ϕπ^{+}π^{-}p at GlueX. Physical review letters. 2026 Jun;136(25):251902.

Published In

Physical review letters

DOI

10.1103/jsfs-nq46

EISSN

1079-7114

ISSN

0031-9007

Publication Date

June 2026

Volume

136

Issue

25

Start / End Page

251902

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering