ar X iv : h ep - p h / 05 12 01 4 v 1 1 D ec 2 00 5 The Unitarity Triangle through B d → ρ ± π ∓ decays

ar X iv : h ep - p h / 05 12 21 6 v 1 1 6 D ec 2 00 5 QUANTIZATION AND HIGH ENERGY UNITARITY IN ORBIFOLD THEORIES

ar X iv : h ep - p h / 05 12 21 6 v 2 1 7 D ec 2 00 5 QUANTIZATION AND HIGH ENERGY UNITARITY IN ORBIFOLD THEORIES

ar X iv : h ep - p h / 05 12 10 1 v 1 8 D ec 2 00 5 Hard spectator - scattering in B → ππ decays at NNLO ∗

We compute the 1-loop (NNLO) corrections to hard spectator-scattering in tree-dominated hadronic B decays. Depending on the values of hadronic input parameters the corrections are shown to have a significant impact on the B → ππ branching fractions.

ar X iv : h ep - p h / 05 12 03 9 v 1 2 D ec 2 00 5 November 2005 Status of the Cabibbo Angle

We review the recent experimental and theoretical progress in the determination of |V ud | and |V us |, and the status of the most stringent test of CKM unitarity. Future prospects on |V cd | and |V cs | are also briefly discussed.

ar X iv : h ep - p h / 97 12 35 6 v 1 1 2 D ec 1 99 7 Determination of the CKM matrix by semileptonic rare B - decays ∗

The possibility to test the unitarity triangle of CKM matrix is examined by using the semileptonic rare B decays, B → Xq l l− with q = d, s and l’s are leptons. The discussion is emphasized on the CP asymmetry in the framework of standard and beyond the standard models. For the beyond standard model, a minimal extension of the standard model containing an additional isosinglet charge (-1/3) cha...