Measurements of B meson decays to ωK* and ωρ

Author(s): 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 | Abstract: We describe searches for B meson decays to the charmless vector-vector final states ωK* and ωρ in 89 × 106BB pairs produced in e+e-annihilation at √s = 10.58 GeV. We measure the following branching fractions in units of 10-6: B(B0→ ωK*0) = 3.4-1.6+1.8± 0.4(l6.0), B(B+→ ωK*+) = 3.5-2.0+2.5± 0.7(l7.4), B(B0→ ωρ0) = 0.6-1.1+1.3± 0.4(l3.3), and B(B+→ ωρ+) = 12.6-3.3+3.7± 1.6. The first error quoted is statistical, the second systematic, and the upper limits are defined at 90% confidence level. For B+→ ωρ+we also measure the longitudinal spin alignment fraction fL= 0.88-0.15+0.12± 0.03 and charge asymmetry Ach= (5 ± 26 ± 2)%. © 2005 The American Physical Society.