- Main
Measurement of the ratio B(B- → D*0K -)/B(B → D*0π-) and of the CP asymmetry of B- → D*CP+0K - decays
- Aubert, B;
- Barate, R;
- Boutigny, D;
- Couderc, F;
- Karyotakis, Y;
- Lees, JP;
- Poireau, V;
- Tisserand, V;
- Zghiche, A;
- Grauges-Pous, E;
- 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;
- 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;
- Fritsch, M;
- Goetzen, K;
- Held, T;
- Koch, H;
- Lewandowski, B;
- Pelizaeus, M;
- Schroeder, T;
- Steinke, M;
- Boyd, JT;
- Chevalier, N;
- Cottingham, WN;
- Kelly, MP;
- Latham, TE;
- Wilson, FF;
- Cuhadar-Donszelmann, T;
- Hearty, C;
- Knecht, NS;
- Mattison, TS;
- McKenna, JA;
- Thiessen, D;
- Khan, A;
- Kyberd, P;
- Teodorescu, L;
- Blinov, AE;
- Blinov, VE;
- Druzhinin, VP;
- Golubev, VB;
- Ivanchenko, VN;
- Kravchenko, EA;
- Onuchin, AP;
- Serednyakov, SI;
- Skovpen, YI;
- Solodov, EP;
- Yushkov, AN;
- Best, D;
- Bruinsma, M;
- Chao, M;
- Eschrich, I;
- Kirkby, D;
- Lankford, AJ;
- Mandelkern, M;
- Mommsen, RK;
- Roethel, W;
- Stoker, DP;
- Buchanan, C;
- Hartfiel, BL;
- Weinstein, AJR;
- Foulkes, SD
- et al.
Abstract
We study the decays B- → D*0π - and B-→ D*0K-, where the D*0 decays into D0π0, with the D0 reconstructed in the CP-even (CP+) eigenstates K-K + and π-π+ and in the (non-CP) channels K-π+, K -π+π+π-, and K -π+π0. Using a sample of about 123 × 106 BB̄ pairs, we measure the ratios of decay rates R*non-CP ≡ B(B- → D* non-CP0K-)/B(B- → D*non-CP0π-) = 0.086 ± 0.0040(stat)-0.0031+0.0042(syst), and provide the first measurements of R*CP+ ≡ B(B- → D*CP+0K-)/B(B- → D*CP+0π-) = 0.0086 ± 0.021(stat) ± 0.007(syst), and of the CP asymmetry A*CP+ ≡ B(B- → D*CP+0K -)-B(B+ → D*CP+0K +)/B(B- → D*CP+0K -)+B(B+ → D*CP+0K +) = 0.10 ± 0.23(stat)-0.04+0.03(syst). © 2005 The American Physical Society.
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