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First measurement of a02(1320) polarized photoproduction cross section

Publication ,  Journal Article
Afzal, F; Akondi, CS; Albrecht, M; Amaryan, M; Arrigo, S; Arroyave, V; Asaturyan, A; Austregesilo, A; Baldwin, Z; Barbosa, F; Barlow, J; Li, H ...
Published in: Physical Review C
July 8, 2025

We measure for the first time the differential photoproduction cross section dσ/dt of the a2(1320) meson at an average photon beam energy of 8.5 GeV, using data with an integrated luminosity of 104 pb−1 collected by the GlueX experiment. We fully reconstruct the γ p → ηπ0p reaction and perform a partial-wave analysis in the a2(1320) mass region with amplitudes that incorporate the linear polarization of the beam. This allows us to separate for the first time the contributions of natural- and unnatural-parity exchanges. These measurements provide novel information about the photoproduction mechanism, which is critical for the search for spin-exotic states.

Duke Scholars

Published In

Physical Review C

DOI

EISSN

2469-9993

ISSN

2469-9985

Publication Date

July 8, 2025

Volume

112

Issue

1

Related Subject Headings

  • 5106 Nuclear and plasma physics
 

Citation

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Afzal, F., Akondi, C. S., Albrecht, M., Amaryan, M., Arrigo, S., Arroyave, V., … Ostrovidov, A. I. (2025). First measurement of a02(1320) polarized photoproduction cross section. Physical Review C, 112(1). https://doi.org/10.1103/jfzb-rfl4
Afzal, F., C. S. Akondi, M. Albrecht, M. Amaryan, S. Arrigo, V. Arroyave, A. Asaturyan, et al. “First measurement of a02(1320) polarized photoproduction cross section.” Physical Review C 112, no. 1 (July 8, 2025). https://doi.org/10.1103/jfzb-rfl4.
Afzal F, Akondi CS, Albrecht M, Amaryan M, Arrigo S, Arroyave V, et al. First measurement of a02(1320) polarized photoproduction cross section. Physical Review C. 2025 Jul 8;112(1).
Afzal, F., et al. “First measurement of a02(1320) polarized photoproduction cross section.” Physical Review C, vol. 112, no. 1, July 2025. Scopus, doi:10.1103/jfzb-rfl4.
Afzal F, Akondi CS, 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, Black T, Boeglin W, Boer M, Briscoe WJ, Britton T, Cao S, 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, Erbora T, Eugenio P, Fabrizi A, Fanelli C, Fang S, Fitches J, Foda AM, Furletov S, Gan L, Gao H, Gardner A, Gasparian A, Glazier DI, Gleason C, Goryachev VS, Grube B, Guo J, Guo L, Hernandez J, Hernandez K, Hoffman ND, Hornidge D, Hou G, Hurck P, Hurley A, Imoehl W, Ireland DG, Ito MM, Jaegle I, Jarvis NS, Jeske T, Jing M, Jones RT, Kakoyan V, Kalicy G, Khachatryan V, Kourkoumelis C, LaDuke A, Larin I, Lawrence D, Lersch DI, Li H, Liu B, Livingston K, Lolos GJ, Lorenti L, Lyubovitskij V, Ma R, Mahmood A, Marukyan H, Matveev V, McCaughan M, McCracken M, Meyer CA, Miskimen R, Mitchell RE, Mizutani K, Moran P, Neelamana V, Ng L, Nissen E, Orešić S, Ostrovidov AI. First measurement of a02(1320) polarized photoproduction cross section. Physical Review C. 2025 Jul 8;112(1).

Published In

Physical Review C

DOI

EISSN

2469-9993

ISSN

2469-9985

Publication Date

July 8, 2025

Volume

112

Issue

1

Related Subject Headings

  • 5106 Nuclear and plasma physics