*** THE HEAVY FLAVOR AVERAGING GROUP *** Unitarity Triangle angles: PDG 2004 update ========================================== - used are published results only - if not stated otherwise: first errors are statistical, second are systematic ================================================== === measurements related to the UT angle beta === ================================================== o S = sin(2beta) - sin2b[cc-bar] : 0.741 ± 0.067 ± 0.034 [BABAR PRL 89 (2002) 201802] 0.719 ± 0.074 ± 0.035 [Belle PRD 66 (2002) 071102] ------------------------------------------------------ 0.731 ± 0.056 [average, CL=0.84] - sin2b[phiKS] : no published result from BABAR yet -0.96 ± 0.50 +0.09-0.11 [Belle hep-ex/0308035 (PRL)] - sin2b[eta'KS] : 0.02 ± 0.34 ± 0.03 [BABAR PRL 91 (2003) 161801] 0.43 ± 0.27 ± 0.05 [Belle hep-ex/0308035 (PRL)] ----------------------------------------------------- 0.27 ± 0.21 [average, CL=0.35] - sin2b[K+K-KS] : no published result from BABAR yet (excl. phiKS) 0.51 ± 0.26 ± 0.05+0.18 [Belle hep-ex/0308035 (PRL)] (note that the sin2b measurements from s-penguin modes suffer from theoretical uncertainties) o C = (|A|^2 - |A-bar|^2)/(|A|^2 + |A-bar|^2) = (1 - |lambda|^2)/(1 + |lambda|^2) - |lambda|[cc-bar]: 0.948 ± 0.051 ± 0.030 [BABAR PRL 89 (2002) 201802] 0.950 ± 0.049 ± 0.034 [Belle PRD 66 (2002) 071102] ------------------------------------------------------ 0.949 ± 0.045 [average, CL=0.98] - C[phiKS] : no published result from BABAR yet 0.15 ± 0.29 ± 0.07 [Belle hep-ex/0308035 (PRL)] - C[eta'KS] : 0.10 ± 0.22 ± 0.04 [BABAR PRL 91 (2003) 161801] 0.01 ± 0.16 ± 0.04 [Belle hep-ex/0308035 (PRL)] ----------------------------------------------------- 0.04 ± 0.13 [average, CL=0.75] - C[K+K-KS] : no published result from BABAR yet (excl. phiKS) 0.17 ± 0.16 ± 0.04 [Belle hep-ex/0308035 (PRL)] ----------------- o CP asymmetries in B0 -> J/psi pi0 S : 0.05 ± 0.49 ± 0.16 [BABAR PRL 91 (2003) 061802] C : 0.38 ± 0.41 ± 0.09 [idem] (no published result from Belle yet) ----------------- o CP asymmetries in B0 -> D*+D*- Im(lambda) : 0.05 ± 0.29 ± 0.10 [BABAR PRL 91 (2003) 131801] |lambda| : 0.75 ± 0.19 ± 0.02 [idem] CP-odd fraction : 0.063 ± 0.055 ± 0.009 [idem] (no published result from Belle yet) ----------------- o CP asymmetries in B0 -> D*+-D-+ S+- : -0.82 ± 0.75 ± 0.14 [BABAR PRL 90 (2003) 221801] S-+ : -0.24 ± 0.69 ± 0.12 [idem] C+- : -0.47 ± 0.40 ± 0.12 [idem] C-+ : -0.22 ± 0.37 ± 0.10 [idem] A+- : -0.03 ± 0.11 ± 0.05 [idem] (no published result from Belle yet) ----------------- o CP asymmetries in B0 -> KSpi0 (no published result from BABAR and Belle yet) ================================================== === measurements related to the UT angle alpha === ================================================== o CP asymmetries in B0 -> pi+pi- S : 0.02 ± 0.34 ± 0.05 [BABAR PRL 89 (2002) 281802] -1.23 ± 0.41 +0.08-0.07 [Belle PRD 68 (2003) 012001] ----------------------------------------------------- -0.48 ± 0.27 [average, CL=0.02] C : -0.30 ± 0.25 ± 0.04 [BABAR PRL 89 (2002) 281802] -0.77 ± 0.27 ± 0.08 [Belle PRD 68 (2003) 012001] ---------------------------------------------------- -0.51 ± 0.19 [average, CL=0.21] ----------------- o CP asymmetries in B0 -> rho+-pi-+ S : 0.19 ± 0.24 ± 0.03 [BABAR PRL 91 (2003) 201802] C : 0.36 ± 0.18 ± 0.04 [idem] delta_S : 0.15 ± 0.25 ± 0.03 [idem] delta_C : 0.28 +0.18-0.19 ± 0.04 [idem] Acp : -0.18 ± 0.08 ± 0.03 [idem] (no published result from Belle yet) ================================================== === measurements related to the UT angle gamma === ================================================== o CP asymmetries in B0 -> D(*)+-pi-+ (no published result from BABAR and Belle yet) --> BABAR _almost_ published ----------------- o CP asymmetries in B0 -> D0K (no published result from BABAR and Belle yet) -------------------------------------------------------------------------- edited by Andreas Hoecker, LAL-Orsay (23 Dec 2003), [hoecker@lal.in2p3.fr]