Detector group organization

1. Detector group organization • For the CDR writing we had identified subsystem editors/conveners • This structure has concluded its function • Many thanks for the effort and commitment • We should move forward to the next phase • Goals: • Advance the R&D activity as coherently as possible • Start creating the infrastructure and doing the work needed for a Technical Design Report • Prepare the ground for the formation of a collaboration • We need to keep a delicate but essential balance: • Move forward coherently • Leave room for other groups to join Dal CDR al TDR , occorre una Collaborazione

2. R&D Perspectives • R&D will be funded at the local or regional level until there is a SuperB collaboration. • Groups approach(ed) their funding agencies to get support for what they’re interested in. • Nonetheless now that we have a CDR detector, coordination of activities is important: • Identify the most important R&D issues • Avoid duplication of effort • Act together to ask for money • Provide a structure for new activities or new groups INFN comincera’ a finanziare nel 2008

3. R&D Coordination • I think it would be useful to setup a structure of R&D conveners for the subsystems with the job of: • Keep track/coordinate activities • Help groups focus on what is needed • Provide a point of reference for groups or individuals wishing to participate • Help prepare funding proposals or reports • Each subsystem should have one or two conveners • Let’s use the rest of this workshop to discuss about names • Not all the vacancies need to be filled now • Not a life sentence: which should allow dynamic adaptation as things evolve Considerazioni (quasi ovvie) al contorno

4. Subsystems • MDI (including beam pipe) • SVT (including Layer0) • DCH • EMC (including endcaps)(**) • PID (including endcaps)(*) • IFR (**) • Electronics • Trigger/DAQ • Computing • Software Shopping list, * indica possibile interesse nostro

5. R&D Review and choices • At some point we will need a more formal R&D review process • Committee to review and monitor activity and provide advice to the management • IMHO this should be setup when the collaboration is formed or forming • For some regions it may be advantageous to create this committee earlier • We need to explore the ramifications of this proposal • Eventually we will have to make choices about technology • Usual difficult balance between good that works and better that might not • We should use the time in front of us to develop the new technologies as much as possible • Act together as a group working towards an experiment • Minimize pain and disappointment when choices will actually be made by the SuperB collaboration Ulteriori considerazioni

6. Software • Simulation • We need to ramp up our simulation ability • More and more detailed • Connection with physics group and accelerator design • Physics studies • Background simulation • Detector studies • Infrastructure • We need to start setting up a software infrastructure (and group) • From repository to framework • We’ve been using SLAC/Babar so far. How much longer ? Questo riguarda tutti, quindi anche noi!

7. Last but not least • Infrastructure in Tor Vergata • We need to proceed with a feasability study for the Tor Vergata site • It is essential to define building volumes and functions • Experimental hall(s), support buildings and caverns, shafts, assembly halls, … • We have regular meetings with the Tor Vergata engineers and architects • Need input and answers from the Accelerator and Detector group Questo non ci riguarda da vicino, ma e’ vicino!!!!

8. Per gli amanti della photon detection PID Ratcliff • Three active groups: SLAC, Ljubljana, BINP • DIRC Barrel readout • Forward (Backward PID): TOF, Focusing RICH Projected performance

9. Forward PID Ratcliff TOF resolution • Physics case • Cost/benefit analysis • Technology choice/maturity • Bench tests of fast timing PMTs are encouraging to date. • Best results with the laser diode: • - s ~ 12 ps for Npe = 50-60 (as expected from 1cm thick Cherenkov radiator). • - s TTS < 26 ps for Npe ~ 1. • - Upper limit on the MCP-PMT contribution: s MCP-PMT < 6.5 ps. • - TAC/ADC contribution to timing: s TAC_ADC < 3.2 ps. • - Total electronics contribution at present: s Total_electronics~ 7.2 ps. • More to come soon….We plan to continue detector work and confirm TOF performance in a test beam run this year….However, test beams at SLAC after this year are a concern. Križan

10. Forward PID Križan MCP PMT development in BINP • Photocathode ageing is rate dependent • Counting rate was increased from test to test keeping the integrated cathode charge constant (~5 nC) • 3 MCP PMTs have the same life time as 2 MCP with protective layer Kravchenko

11. EMC Hitlin Active group in CALTECH (Ren-yuan Zhu) Interessa anche PG, PD, sinergia con CMS-Roma

12. Acceptance studies Mazur • Btn benchmark • Basis for a cost benefit analysis of a backward calorimeter • Need to commission a full detailed study for the TDR BKGD/Signal with smearing Forw acc. BKGD/Signal with smearing Backw. acc.

13. IFR Cavoto • For the scintillator we are in 2002 (virtually) • No active group (yet) • Need to get going if we want to be ready in time R&D NOW (TO DO) Sinergia con Cuore (+Pd, Fe)