1. LCFI Physics Meeting: 23 rd May 2005: Dave Jackson Proposed strategy for a revised proposal With respect to original GANTT chart Tasks: C++ code With International Collaboration 1 2

2. General Strategy: Top Down Select a couple of physics channels that cover most reconstruction issues – then work on these issues will have immediate benefits to the analysis Higgs Self Coupling Solid b-tag channel; high efficiency needed over full range of jet energy and angles Includes use of vertex charge to reduce jet-jet combinatorics Also vertex/jet finding interplay may be an issue A FB in e+e- → bb and cc events b-tag and c-tag with vertex charge at the relatively high energy region 200-500 GeV jets Clean test of vertex charge (dipole ?) for physics Issue of decays outside the vertex detector

3. General Comments The second example is a natural extension of current SGV studies Provide applications for our developing visualisation tools Developing reconstruction tools should be broad enough to be used for other physics channels (eg c-tagging at low energy for Stop analysis) and within the wider international community. The short term (2-3 years) aim will be to determine the sensitivity of these physics channels to the vertex detector design using SGV fast MC The longer term goal of applying the developed reconstruction/analysis tools on top of a full simulation (via LCIO, or future LCFI work) should be kept in mind