Publications [#385687] of Haiyan Gao

Papers Published

1. 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, vol. 112 no. 1 (July, 2025) [doi]
   (last updated on 2026/01/14)

   Abstract:
   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.