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EnglishWe describe searches for B meson decays to the charmless vector-vector final states omegaK(*) and omegarho in 89x10(6) B (B) over bar pairs produced in e(+)e(-) annihilation at roots=10.58 GeV. We measure the following branching fractions in units of 10(-6): B(B-0-->omegaK(*0))=3.4(-1.6)(+1.8)+/-0.4(<6.0), B(B+-->omegaK(*+))=3.5(-2.0)(+2.5)+/-0.7(<7.4), B(B-0-->omegarho(0))=0.6(-1.1)(+1.3)+/-0.4(<3.3), and B(B+-->omegarho(+))=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+-->omegarho(+) we also measure the longitudinal spin alignment fraction f(L)=0.88(-0.15)(+0.12)+/-0.03 and charge asymmetry A(ch)=(5+/-26+/-2)%.
http://hdl.handle.net/11384/4276| Titolo: | Measurements of B meson decays to omega K-* and omega rho RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 RID A-2675-2009 |
| Autori interni: | LUSIANI, Alberto |
| Data di pubblicazione: | 2005 |
| Rivista: | PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY |
| Abstract: | We describe searches for B meson decays to the charmless vector-vector final states omegaK(*) and omegarho in 89x10(6) B (B) over bar pairs produced in e(+)e(-) annihilation at roots=10.58 GeV. We measure the following branching fractions in units of 10(-6): B(B-0-->omegaK(*0))=3.4(-1.6)(+1.8)+/-0.4(<6.0), B(B+-->omegaK(*+))=3.5(-2.0)(+2.5)+/-0.7(<7.4), B(B-0-->omegarho(0))=0.6(-1.1)(+1.3)+/-0.4(<3.3), and B(B+-->omegarho(+))=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+-->omegarho(+) we also measure the longitudinal spin alignment fraction f(L)=0.88(-0.15)(+0.12)+/-0.03 and charge asymmetry A(ch)=(5+/-26+/-2)%. |
| Handle: | http://hdl.handle.net/11384/4276 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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