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Evidence for the decay X(3872)→J/ψω

  • Author(s): Del Amo Sanchez, P;
  • Lees, JP;
  • Poireau, V;
  • Prencipe, E;
  • Tisserand, V;
  • Garra Tico, J;
  • Grauges, E;
  • Martinelli, M;
  • Palano, A;
  • Pappagallo, M;
  • Eigen, G;
  • Stugu, B;
  • Sun, L;
  • Battaglia, M;
  • Brown, DN;
  • Hooberman, B;
  • Kerth, LT;
  • Kolomensky, YG;
  • Lynch, G;
  • Osipenkov, IL;
  • Tanabe, T;
  • Hawkes, CM;
  • Watson, AT;
  • Koch, H;
  • Schroeder, T;
  • Asgeirsson, DJ;
  • Hearty, C;
  • Mattison, TS;
  • McKenna, JA;
  • Khan, A;
  • Randle-Conde, A;
  • Blinov, VE;
  • Buzykaev, AR;
  • Druzhinin, VP;
  • Golubev, VB;
  • Onuchin, AP;
  • Serednyakov, SI;
  • Skovpen, YI;
  • Solodov, EP;
  • Todyshev, KY;
  • Yushkov, AN;
  • Bondioli, M;
  • Curry, S;
  • Kirkby, D;
  • Lankford, AJ;
  • Mandelkern, M;
  • Martin, EC;
  • Stoker, DP;
  • Atmacan, H;
  • Gary, JW;
  • Liu, F;
  • Long, O;
  • Vitug, GM;
  • Campagnari, C;
  • Hong, TM;
  • Kovalskyi, D;
  • Richman, JD;
  • Eisner, AM;
  • Heusch, CA;
  • Kroseberg, J;
  • Lockman, WS;
  • Martinez, AJ;
  • Schalk, T;
  • Schumm, BA;
  • Seiden, A;
  • Winstrom, LO;
  • Cheng, CH;
  • Doll, DA;
  • Echenard, B;
  • Hitlin, DG;
  • Ongmongkolkul, P;
  • Porter, FC;
  • Rakitin, AY;
  • Andreassen, R;
  • Dubrovin, MS;
  • Mancinelli, G;
  • Meadows, BT;
  • Sokoloff, MD;
  • Bloom, PC;
  • Ford, WT;
  • Gaz, A;
  • Nagel, M;
  • Nauenberg, U;
  • Smith, JG;
  • Wagner, SR;
  • Ayad, R;
  • Toki, WH;
  • Karbach, TM;
  • Merkel, J;
  • Petzold, A;
  • Spaan, B;
  • Wacker, K;
  • Kobel, MJ;
  • Schubert, KR;
  • Schwierz, R;
  • Bernard, D;
  • Verderi, M;
  • Clark, PJ;
  • Playfer, S;
  • Watson, JE
  • et al.
Abstract

We present a study of the decays B0,+→J/ ψπ+π-π0K0,+, using 467×106 BB̄ pairs recorded with the BABAR detector. We present evidence for the decay mode X(3872)→J/ψω, with product branching fractions B(B+→X(3872)K+)×B(X(3872)→J/ ψω)=[0.6±0.2(stat)±0.1(syst)]×10-5, and B(B0→X(3872)K0)×B(X(3872)→J/ψω)=[0.6±0.3(stat) ±0.1(syst)]×10-5. A detailed study of the π+π-π0 mass distribution from X(3872) decay favors a negative-parity assignment. © 2010 The American Physical Society.

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