Evidence for a New Resonance and Search for theY ( 4140 )in theγ γ → ϕ J / ψProcess
Creators: name: Shen, C. P.
name: Yuan, C. Z.
name: Aihara, H.
name: Arinstein, K.
name: Aushev, T.
name: Bakich, A. M.
name: Balagura, V.
name: Barberio, E.
name: Bay, A.
name: Belous, K.
name: Bhardwaj, V.
name: Bischofberger, M.
name: Bračko, M.
name: Browder, T. E.
name: Chang, M.-C.
name: Chang, P.
name: Chen, A.
name: Chen, P.
name: Cheon, B. G.
name: Chiang, C.-C.
name: Cho, I.-S.
name: Choi, Y.
name: Dalseno, J.
name: Das, A.
name: Doležal, Z.
name: Drutskoy, A.
name: Eidelman, S.
name: Epifanov, D.
name: Gabyshev, N.
name: Golob, B.
name: Ha, H.
name: Haba, J.
name: Han, B.-Y.
name: Hayasaka, K.
name: Hayashii, H.
name: Horii, Y.
name: Hoshi, Y.
name: Hou, W.-S.
name: Hsiung, Y. B.
name: Hyun, H. J.
name: Inami, K.
name: Itoh, R.
name: Iwabuchi, M.
name: Iwasaki, M.
name: Iwasaki, Y.
name: Joshi, N. J.
name: Julius, T'Mir
name: Kang, J. H.
name: Kawasaki, T.
name: Kiesling, C.
name: Kim, H. J.
name: Kim, H. O.
name: Kim, J. H.
name: Kim, S. K.
name: Kim, Y. I.
name: Kim, Y. J.
name: Ko, B. R.
name: Kodyš, P.
name: Korpar, S.
name: Kreps, M.
name: Križan, P.
name: Krokovny, P.
name: Kuhr, T.
name: Kwon, Y.-J.
name: Kyeong, S.-H.
name: Lange, J. S.
name: Lee, M. J.
name: Lee, S.-H.
name: Li, J.
name: Liu, C.
name: Liu, Y.
name: Liventsev, D.
name: Louvot, R.
name: Matyja, A.
name: McOnie, S.
name: Miyabayashi, K.
name: Miyata, H.
name: Miyazaki, Y.
name: Mori, T.
name: Mussa, R.
name: Nakano, E.
name: Nakao, M.
name: Nakazawa, H.
name: Natkaniec, Z.
name: Neubauer, S.
name: Nishida, S.
name: Nishimura, K.
name: Nitoh, O.
name: Ohshima, T.
name: Okuno, S.
name: Olsen, S. L.
name: Pakhlova, G.
name: Park, C. W.
name: Park, H.
name: Park, H. K.
name: Pestotnik, R.
name: Petrič, M.
name: Piilonen, L. E.
name: Röhrken, M.
name: Ryu, S.
name: Sahoo, H.
name: Sakai, Y.
name: Schneider, O.
name: Senyo, K.
name: Sevior, M. E.
name: Shapkin, M.
name: Shiu, J.-G.
name: Shwartz, B.
name: Singh, J. B.
name: Smerkol, P.
name: Sokolov, A.
name: Solovieva, E.
name: Starič, M.
name: Teramoto, Y.
name: Trabelsi, K.
name: Uehara, S.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Urquijo, P.
name: Varner, G.
name: Vervink, K.
name: Wang, C. H.
name: Wang, P.
name: Wang, X. L.
name: Watanabe, Y.
name: Wedd, R.
name: Won, E.
name: Yabsley, B. D.
name: Yamashita, Y.
name: Zhang, C. C.
name: Zhang, Z. P.
name: Zivko, T.
name: Zyukova, O.
Publisher: name: Swinburne
Year: 2024

description: The process γγ→φ/ψ is measured using a data sample of 825fb-1 collected with the Belle detector. A narrow peak of 8.8-3.2+4.2 events, with a significance of 3.2 standard deviations including systematic uncertainty, is observed. The mass and natural width of the structure [named X(4350)] are measured to be [4350.6-5.1+4.6(stat)±0.7(syst)]MeV/ c2 and [13-9+18(stat)±4(syst)]MeV, respectively. The product of its two-photon decay width and branching fraction to φJ/ψ is [6.7-2.4+3.2(stat)±1.1(syst)]eV for JP=0+, or [1.5-0.6+0.7(stat)±0.3(syst)]eV for JP=2+. No signal for the Y(4140)→φJ/ψ structure reported by the CDF Collaboration in B→K+φJ/ψ decays is observed, and limits of Γγγ(Y(4140))B(Y(4140)→φJ/ψ)&lt;41eV for JP=0 + or &lt;6.0eV for JP=2+ are determined at the 90% C.L. This disfavors the scenario in which the Y(4140) is a Ds*+Ds*- molecule.