Measurement of the Resonant and Non-Resonant Branching Ratios in $Ξ_{c}^{0} \rightarrow Ξ^{0} K^+ K^-$
Creators: name: McNeil, J. T.
name: Yelton, J.
name: Bennett, J.
name: Adachi, I.
name: Adamczyk, K.
name: Ahn, J. K.
name: Aihara, H.
name: Said, S. Al
name: Asner, D. M.
name: Atmacan, H.
name: Aulchenko, V.
name: Aushev, T.
name: Ayad, R.
name: Babu, V.
name: Bahinipati, S.
name: Behera, P.
name: Bessner, M.
name: Bilka, T.
name: Biswal, J.
name: Bobrov, A.
name: Bonvicini, G.
name: Bozek, A.
name: Bracko, M.
name: Browder, T. E.
name: Campajola, M.
name: Cao, L.
name: Cervenkov, D.
name: Chang, P.
name: Chekelian, V.
name: Chen, A.
name: Cheon, B. G.
name: Chilikin, K.
name: Cho, K.
name: Cho, S. J.
name: Choi, S. K.
name: Choi, Y.
name: Choudhury, S.
name: Cinabro, D.
name: Cunliffe, S.
name: Das, S.
name: Dash, N.
name: De Nardo, G.
name: Dhamija, R.
name: Di Capua, F.
name: Dolezal, Z.
name: Dong, T. V.
name: Eidelman, S.
name: Ferber, T.
name: Fulsom, B. G.
name: Gaur, V.
name: Gabyshev, N.
name: Garmash, A.
name: Giri, A.
name: Goldenzweig, P.
name: Golob, B.
name: Grzymkowska, O.
name: Guan, Y.
name: Gudkova, K.
name: Hadjivasiliou, C.
name: Hayasaka, K.
name: Hayashii, H.
name: Hou, W. S.
name: Hsu, C. L.
name: Huang, K.
name: Inami, K.
name: Ishikawa, A.
name: Itoh, R.
name: Iwasaki, M.
name: Jacobs, W. W.
name: Jeon, H. B.
name: Jia, S.
name: Jin, Y.
name: Joo, K. K.
name: Kaliyar, A. B.
name: Kang, K. H.
name: Karyan, G.
name: Kichimi, H.
name: Kim, B. H.
name: Kim, C. H.
name: Kim, D. Y.
name: Kim, S. H.
name: Kim, Y. K.
name: Kinoshita, K.
name: Kodys, P.
name: Konno, T.
name: Korpar, S.
name: Krizan, P.
name: Kroeger, R.
name: Krokovny, P.
name: Kuhr, T.
name: Kulasiri, R.
name: Kumar, M.
name: Kumara, K.
name: Kwon, Y. J.
name: Lalwani, K.
name: Lee, S. C.
name: Li, J.
name: Li, L. K.
name: Li, Y. B.
name: Gioi, L. Li
name: Libby, J.
name: Lieret, K.
name: Liptak, Z.
name: Liventsev, D.
name: MacQueen, C.
name: Masuda, M.
name: Matsuda, T.
name: Matvienko, D.
name: Merola, M.
name: Metzner, F.
name: Miyabayashi, K.
name: Mizuk, R.
name: Mohanty, G. B.
name: Mohanty, S.
name: Moon, T. J.
name: Mussa, R.
name: Nakao, M.
name: Natochii, A.
name: Nayak, L.
name: Nayak, M.
name: Niiyama, M.
name: Nisar, N. K.
name: Nishida, S.
name: Ogawa, K.
name: Ogawa, S.
name: Ono, H.
name: Onuki, Y.
name: Oskin, P.
name: Pakhlova, G.
name: Pardi, S.
name: Park, H.
name: Park, S. H.
name: Paul, S.
name: Pedlar, T. K.
name: Pestotnik, R.
name: Piilonen, L. E.
name: Podobnik, T.
name: Popov, V.
name: Prencipe, E.
name: Prim, M. T.
name: Rohrken, M.
name: Rostomyan, A.
name: Rout, N.
name: Russo, G.
name: Sahoo, D.
name: Sakai, Y.
name: Sandilya, S.
name: Sangal, A.
name: Santelj, L.
name: Savinov, V.
name: Schnell, G.
name: Schueler, J.
name: Schwanda, C.
name: Seino, Y.
name: Senyo, K.
name: Sevior, M. E.
name: Shapkin, M.
name: Sharma, C.
name: Shebalin, V.
name: Shiu, J. G.
name: Simon, F.
name: Solovieva, E.
name: Staric, M.
name: Stottler, Z. S.
name: Strube, J. F.
name: Sumihama, M.
name: Sumiyoshi, T.
name: Takizawa, M.
name: Tamponi, U.
name: Tanida, K.
name: Tao, Y.
name: Tenchini, F.
name: Uchida, M.
name: Uehara, S.
name: Unno, Y.
name: Uno, S.
name: Van Tonder, R.
name: Varner, G.
name: Vinokurova, A.
name: Vorobyev, V.
name: Wang, C. H.
name: Wang, E.
name: Wang, M. Z.
name: Wang, P.
name: Watanabe, M.
name: Watanuki, S.
name: Won, E.
name: Xu, X.
name: Yabsley, B. D.
name: Yan, W.
name: Ye, H.
name: Yin, J. H.
name: Zhang, Z. P.
name: Zhilich, V.
name: Zhukova, V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Using the entire data sample of $980$ $fb^{-1}$ integrated luminosity collected with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider, we present an amplitude analysis measuring the branching fractions of the Cabibbo-allowed, $W$-exchange resonant decay $Ξ_{c}^{0} \rightarrow Ξ^{0} ϕ(\to K^+ K^-)$ with a polarized $ϕ$ and the non-resonant decay via a direct process $Ξ_{c}^{0} \rightarrow Ξ^{0} K^+ K^-$. We present these measurements, relative to the normalization mode $Ξ^{-}π^{+}$, and find branching ratios $\frac{\mathcal{B}(Ξ_{c}^{0} \rightarrow Ξ^{0} ϕ(\rightarrow K^{+}K^{-}))}{\mathcal{B}(Ξ_{c}^{0} \rightarrow Ξ^{-} π^{+})} = 0.036 \pm 0.004 (stat.) \pm 0.002 (syst.)$ and $\frac{\mathcal{B}(Ξ_{c}^{0} \rightarrow Ξ^{0} K^{+} K^{-})}{\mathcal{B}(Ξ_{c}^{0} \rightarrow Ξ^{-} π^{+})} = 0.039 \pm 0.004 (stat.) \pm 0.002 (syst.)$ which suggest that only minor cusping peaks occur in the combinatorial background of $Ω^{*-} \to Ξ^{0}K^{-}$ due to these $Ξ_{c}^{0}$ decays.
description: 10 pages, 7 figures, 1 table, On behalf of the Belle Collaboration, Accepted by Phys. Rev. D (05/10/21) DZ12501