- Main
Measurements of the decays B0→D̄0pp̄, B0→D̄* 0pp̄, B0→D-pp̄π+, and B0→D*-pp̄π+
- Aubert, B;
- Barate, R;
- Bona, M;
- Boutigny, D;
- Couderc, F;
- Karyotakis, Y;
- Lees, JP;
- Poireau, V;
- Tisserand, V;
- Zghiche, A;
- Grauges, E;
- Palano, A;
- Pappagallo, M;
- Chen, JC;
- Qi, ND;
- Rong, G;
- Wang, P;
- Zhu, YS;
- Eigen, G;
- Ofte, I;
- Stugu, B;
- Abrams, GS;
- Battaglia, M;
- Brown, DN;
- Button-Shafer, J;
- Cahn, RN;
- Charles, E;
- Day, CT;
- Gill, MS;
- Groysman, Y;
- Jacobsen, RG;
- Kadyk, JA;
- Kerth, LT;
- Kolomensky, YG;
- Kukartsev, G;
- Lynch, G;
- Mir, LM;
- Oddone, PJ;
- Orimoto, TJ;
- Pripstein, M;
- Roe, NA;
- Ronan, MT;
- Wenzel, WA;
- Barrett, M;
- Ford, KE;
- Harrison, TJ;
- Hart, AJ;
- Hawkes, CM;
- Morgan, SE;
- Watson, AT;
- Goetzen, K;
- Held, T;
- Koch, H;
- Lewandowski, B;
- Pelizaeus, M;
- Peters, K;
- Schroeder, T;
- Steinke, M;
- Boyd, JT;
- Burke, JP;
- Cottingham, WN;
- Walker, D;
- Cuhadar-Donszelmann, T;
- Fulsom, BG;
- Hearty, C;
- Knecht, NS;
- Mattison, TS;
- McKenna, JA;
- Khan, A;
- Kyberd, P;
- Saleem, M;
- Teodorescu, L;
- Blinov, VE;
- Bukin, AD;
- Druzhinin, VP;
- Golubev, VB;
- Onuchin, AP;
- Serednyakov, SI;
- Skovpen, YI;
- Solodov, EP;
- Todyshev, KY;
- Best, DS;
- Bondioli, M;
- Bruinsma, M;
- Chao, M;
- Curry, S;
- Eschrich, I;
- Kirkby, D;
- Lankford, AJ;
- Lund, P;
- Mandelkern, M;
- Mommsen, RK;
- Roethel, W;
- Stoker, DP;
- Abachi, S;
- Buchanan, C;
- Foulkes, SD;
- Gary, JW;
- Long, O;
- Shen, BC
- et al.
Abstract
We present measurements of branching fractions of B0 decays to multibody final states containing protons, based on 232×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We measure the branching fractions B(B0→D̄0pp̄)=(1. 13±0.06±0.08)×10-4, B(B0→D̄*0pp̄)=(1. 01±0.10±0.09)×10-4, B(B0→D-pp̄π+)=(3. 38±0.14±0.29)×10-4, and B(B0→D*-pp̄π+)= (4.81±0.22±0.44)×10-4 where the first error is statistical and the second systematic. We present a search for the charmed pentaquark state, Θc(3100) observed by H1 and put limits on the branching fraction B(B0→Θcp̄π+)×B(Θc→D*-p) <14×10-6 and B(B0→Θcp̄π+)×B(Θc→D-p) <9×10-6. Upon investigation of the decay structure of the above four B0 decay modes, we see an enhancement at low pp̄ mass and deviations from phase-space in the D̄p̄ and D̄p invariant mass spectra. © 2006 The American Physical Society.
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