| Title: |
Light meson spectroscopy from Dalitz plot analyses of ηc decays to η′K+K-, η′π+π-, and ηπ+π- produced in two-photon interactions |
| Authors: |
Lees, JP; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, DN; Kolomensky, YG; Fritsch, M; Koch, H; Schroeder, T; Cheaib, R; Hearty, C; Mattison, TS; McKenna, JA; So, RY; Blinov, VE; Buzykaev, AR; Druzhinin, VP; Golubev, VB; Kozyrev, EA; Kravchenko, EA; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Todyshev, KY; Lankford, AJ; Dey, B; Gary, JW; Long, O; Eisner, AM; Lockman, WS; Vazquez, WP; Chao, DS; Cheng, CH; Echenard, B; Flood, KT; Hitlin, DG; Kim, J; Li, Y; Lin, DX; Miyashita, TS; Ongmongkolkul, P; Oyang, J; Porter, FC; Röhrken, M; Huard, Z; Meadows, BT; Pushpawela, BG; Sokoloff, MD; Sun, L; Smith, JG; Wagner, SR; Bernard, D; Verderi, M; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Santoro, V; Calcaterra, A; de Sangro, R; Finocchiaro, G; Martellotti, S; Patteri, P; Peruzzi, IM; Piccolo, M; Rotondo, M; Zallo, A; Passaggio, S; Patrignani, C; Shuve, BJ; Lacker, HM; Bhuyan, B; Mallik, U; Chen, C; Cochran, J; Prell, S; Gritsan, AV; Arnaud, N; Davier, M; Le Diberder, F; Lutz, AM; Wormser, G; Lange, DJ; Wright, DM; Coleman, JP; Gabathuler, E; Hutchcroft, DE; Payne, DJ; Touramanis, C; Bevan, AJ; Di Lodovico, F; Sacco, R; Cowan, G; Banerjee, S; Davis, CL; Denig, AG; Gradl, W; Griessinger, K; Hafner, A; Schubert, KR; Barlow, RJ; Lafferty, GD; Cenci, R; Jawahery, A; Roberts, DA; Cowan, R; Robertson, SH; Seddon, RM; Neri, N; Palombo, F; Cremaldi, L; Godang, R; Summers, DJ; Taras, P; De Nardo, G; Sciacca, C; Raven, G; Jessop, CP; LoSecco, JM; Honscheid, K; Kass, R; Gaz, A; Margoni, M; Posocco, M; Simi, G; Simonetto, F; Stroili, R; Akar, S; Ben-Haim, E; Bomben, M; Bonneaud, GR; Calderini, G; Chauveau, J; Marchiori, G; Ocariz, J; Biasini, M; Manoni, E; Rossi, A; Batignani, G; Bettarini, S; Carpinelli, M; Casarosa, G; Chrzaszcz, M; Forti, F; Giorgi, MA; Lusiani, A; Oberhof, B; Paoloni, E; Rama, M; Rizzo, G; Walsh, JJ; Zani, L; Smith, AJS; Anulli, F; Faccini, R; Ferrarotto, F; Ferroni, F; Pilloni, A; Piredda, G; Bünger, C; Dittrich, S; Grünberg, O; Heß, M; Leddig, T; Voß, C; Waldi, R; Adye, T; Wilson, FF; Emery, S; Vasseur, G; Aston, D; Cartaro, C; Convery, MR; Dorfan, J; Dunwoodie, W; Ebert, M; Field, RC; Fulsom, BG; Graham, MT; Hast, C; Innes, WR; Kim, P; Leith, DWGS; Luitz, S; MacFarlane, DB; Muller, DR; Neal, H; Ratcliff, BN; Roodman, A; Sullivan, MK; Va’vra, J; Wisniewski, WJ; Purohit, MV; Wilson, JR; Randle-Conde, A; Sekula, SJ; Ahmed, H; Bellis, M; Burchat, PR; Puccio, EMT; Alam, MS; Ernst, JA; Gorodeisky, R; Guttman, N; Peimer, DR; Soffer, A; Spanier, SM; Ritchie, JL; Schwitters, RF; Izen, JM; Lou, XC; Bianchi, F; De Mori, F; Filippi, A; Gamba, D; Lanceri, L; Vitale, L; Martinez-Vidal, F; Oyanguren, A; Albert, J; Beaulieu, A; Bernlochner, FU; King, GJ; Kowalewski, R; Lueck, T; Nugent, IM; Roney, JM; Sobie, RJ; Tasneem, N; Gershon, TJ; Harrison, PF; Latham, TE; Prepost, R; Wu, SL |
| Publisher Information: |
American Physical Society |
| Publication Year: |
2021 |
| Collection: |
Queen Mary University of London: Queen Mary Research Online (QMRO) |
| Description: |
We study the processes γ γ → η c → η ′ K + K − , η ′ π + π − , and η π + π − using a data sample of 519 fb − 1 recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e + e − collider at center-of-mass energies at and near the Υ ( n S ) ( n = 2 , 3, 4) resonances. This is the first observation of the decay η c → η ′ K + K − and we measure the branching fraction Γ ( η c → η ′ K + K − ) / ( Γ ( η c → η ′ π + π − ) = 0.644 ± 0.03 9 stat ± 0.03 2 sys . Significant interference is observed between γ γ → η c → η π + π − and the nonresonant two-photon process γ γ → η π + π − . A Dalitz plot analysis is performed of η c decays to η ′ K + K − , η ′ π + π − , and η π + π − . Combined with our previous analysis of η c → K ¯ K π , we measure the K ∗ 0 ( 1430 ) parameters and the ratio between its η ′ K and π K couplings. The decay η c → η ′ π + π − is dominated by the f 0 ( 2100 ) resonance, also observed in J / ψ radiative decays. A new a 0 ( 1700 ) → η π resonance is observed in the η c → η π + π − channel. We also compare η c decays to η and η ′ final states in association with scalar mesons as they relate to the identification of the scalar glueball. |
| Document Type: |
article in journal/newspaper |
| File Description: |
072002 - ? |
| Language: |
unknown |
| Relation: |
Physical Review D; https://qmro.qmul.ac.uk/xmlui/handle/123456789/74683 |
| DOI: |
10.1103/physrevd.104.072002 |
| Availability: |
https://qmro.qmul.ac.uk/xmlui/handle/123456789/74683; https://doi.org/10.1103/physrevd.104.072002 |
| Rights: |
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. ; Attribution 3.0 United States ; http://creativecommons.org/licenses/by/3.0/us/ ; © 2021, The Author(s). Published by the American Physical Society |
| Accession Number: |
edsbas.DDC465E8 |
| Database: |
BASE |