- Aubert, B;
- Barate, R;
- Boutigny, D;
- Gaillard, JM;
- Hicheur, A;
- Karyotakis, Y;
- Lees, JP;
- Robbe, P;
- Tisserand, V;
- Zghiche, A;
- Palano, A;
- Pompili, A;
- Chen, JC;
- Qi, ND;
- Rong, G;
- Wang, P;
- Zhu, YS;
- Eigen, G;
- Ofte, I;
- Stugu, B;
- Abrams, GS;
- Borgland, AW;
- Breon, AB;
- Brown, DN;
- Button-Shafer, J;
- Cahn, RN;
- Charles, E;
- Day, CT;
- Gill, MS;
- Gritsan, AV;
- Groysman, Y;
- Jacobsen, RG;
- Kadel, RW;
- Kadyk, J;
- Kerth, LT;
- Kolomensky, YG;
- Kral, JF;
- Kukartsev, G;
- Leclerc, C;
- Levi, ME;
- Lynch, G;
- Mir, LM;
- Oddone, PJ;
- Orimoto, TJ;
- Pripstein, M;
- Roe, NA;
- Romosan, A;
- Ronan, MT;
- Shelkov, VG;
- Telnov, AV;
- Wenzel, WA;
- Harrison, TJ;
- Hawkes, CM;
- Knowles, DJ;
- Penny, RC;
- Watson, AT;
- Watson, NK;
- Deppermann, T;
- Goetzen, K;
- Koch, H;
- Lewandowski, B;
- Pelizaeus, M;
- Peters, K;
- Schmuecker, H;
- Steinke, M;
- Barlow, NR;
- Boyd, JT;
- Chevalier, N;
- Cottingham, WN;
- Mackay, C;
- Wilson, FF;
- Hearty, C;
- Mattison, TS;
- McKenna, JA;
- Thiessen, D;
- Kyberd, P;
- McKemey, AK;
- Blinov, VE;
- Bukin, AD;
- Golubev, VB;
- Ivanchenko, VN;
- Kravchenko, EA;
- Onuchin, AP;
- Serednyakov, SI;
- Skovpen, YI;
- Solodov, EP;
- Yushkov, AN;
- Best, D;
- Chao, M;
- Kirkby, D;
- Lankford, AJ;
- Mandelkern, M;
- McMahon, S;
- Mommsen, RK;
- Roethel, W;
- Stoker, DP;
- Buchanan, C;
- Del Re, D;
- Hadavand, HK;
- Hill, EJ
- et al.
We report the observation of 823±57 B0 and 970±65 B+ decays to doubly charmed final states D̄ (*)D(*)K, where D̄(*) and D(*) are fully reconstructed and K is either a K ± or a K0. We use a sample of 82.3 ±0.9 million B B̄ events collected between 1999 and 2002 with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center. The 22 ossible B decays to D̄(*)D(*)K are reconstructed exclusively and the corresponding branching fractions or limits are determined. The branching fractions of the B0 and of the B + to D̄(*)D(*)K are found to be Β(B0→D̄(*)D(*)K) = [4.3±0.3(stat)±0.6(syst)]%, Β(B+→D̄ (*)D(*)K) = [3.5±0.3(stat)±0. 5(syst)]%.A search for decays to orbitally excited Ds states, B→D̄(*)DsJ+(DsJ+→D(*)0K+), is also performed. No statistically significant-contributions from Ds1+(2536) →D*0K+ and DsJ+(2573) →D0K+ to the D̄(*)D (*)0K+ final state are found and we set 90% C.L. limits on their production rates. © 2003 The American Physical Society.