Program Outline
  1. CKM fits within the standard model
    1. A 'state-of-the-art' CKM fit within the SM

      2. Aim: 'Defining' a 'state of the art' CKM fit and presenting it at the end of the workshop by using the inputs provided by the other WG's. We propose to form a subgroup 'CKM fits in the SM'. We would appreciate if one member from each collaboration performing CKM fits participated in this subgroup.

    2. 'New Quantities' in CKM fits

      3. There are 'new' input quantities used for the first time such as e.g. alpha. Other 'new' quantities as e.g. have still large uncertainties and have a minor impact on the CKM fit (at least in the SM) yet.

      Aim:

      1. What is the impact and what are the principal limitations of these new input quantities with respect to experimental and theoretical uncertainties?
      2. How are these new constraints (e.g. on alpha, gamma, sin2b+g, cos2b ...) determined in the context of a statistical framework and what are the reasons for differences when using different frameworks?

      This topic is probably also covered in the most efficient way by forming a subgroup. Contributors could also come from the collaborations above but will certainly benefit from any other contribution. Both subgroups in (1a) and (1b), if not identical, should work in close collaboration.

  2. Topics on CKM fits and New Physics
    1. Assessing the impact of CKM fits on models of NP
      1. present status of model-independent fits:

        2. allowed ranges for NP contributions, presence (or absence) of non-SM regions in the rho-eta plane. What are the most constraining observables?

      2. "outlook" of model-independent fits for the next 5 years

        3. synergy between flavor factories and LHC/Tevatron, including performing fits to estimate the impact of 'hopefully soon to be measured' observables, eg. Bs - Bsbar mixing , Bs decays, etc., on the allowed ranges for NP and on the selected regions in the rho-eta plane.

    2. Impact of the UT fit (item a) above) on specific models (e.g. Minimal Flavour Violation, Constrained MSSM, SUSY-GUTs, flavour models etc)

      3. What are the most constraining observables for a given model? What are the most promising signals of a given model? Are present and future experiments in flavour physics covering all potentially interesting channels?

    3. Interplay between NP in Flavour sector and other observables (electroweak precision, direct searches, etc.)

      4. In particular, the complementarity of direct and indirect searches should be analyzed for given models (e.g. SUSY).

    4. Testing flavour models and textures with the CKM fit.
    5. CKM fits with NP: a problem of fine-tuning in the flavour sector?
  3. Tools for Fits and New Physics
    1. performing the UT fit
    2. calculating branching ratios, distributions of rare decays, possibly in various models (SM, SUSY,..)
    3. develop a fit routine for the Wilson coefficients in b&rarr s gamma, b&rarr s glue, and b&rarr s l+ l- (to be specific: C7gamma, C8g, C9 l, C10 l, CS,CP and maybe others if data is available).