1. BBBTF: where do we go from here? – a personal viewpoint -
W. Kozanecki, CEA-Saclay
Global issues
today’s B-Factories (up to ~ 2007)
...including some specific suggestions, and
some detailed questions
to-morrow’s Super B-Factory

2. Global issues: BaBar vs. Belle
Relative importance of the various background sources?
only common one seems to be beam-gas (before BBR thermal limitations)
Belle
important: SR, beam-gas, Touschek. What is the main long-term limitation?
no concern (?): luminosity, beam-beam
BaBar
limiting (now): thermal outgassing (beam-gas)
limiting (future): luminosity backgrounds, HER b-g, beam-beam
no concern: SR, Touschek

3. Global issues: BaBar vs. Belle (II)
Today’s B-Factories (up to ):  4 main questions
can we understand quantitatively how different / similar our beam-gas backgrounds are, excluding or subtracting (for Babar)
the mid-plane (magnetic separation)
the thermal outgassing problem (use Jan 04 background characterization data)
why is the luminosity background so small in Belle (and will it stay that way...) ?
would a simple (Turtle-like) simulation make sense for Belle? (BaBar: in progress)
why is the Touschek background so large in Belle?
...or is it? i.e. is it large on an absolute or on a relative scale?
can one make a parametric comparison using PEP-II & KEK-B beam parameters?
where (and when) do the main limitations appear?

4. Detailed questions (the beginning of a list...)
Does Belle plan a detailed background characterization at some stage?
Does Belle have any neutron background?
KLM: in the past yes, what about now?
anywhere else?
One of our EMC experts (J. Va’vra) is interested in the long-term leakage-current history of the Belle EMC diodes (Babar sees a definite degradation)
If Belle had to redesign the handling of SR backgrounds, what would you do differently?

5. Global issues: the future
Tomorrow’s Super B-Factory (proposal by G. Wormser)
estimate all background components in a future machine
add together those seen by Belle and those seen by BaBar
as a starting point , use either KEKB upgrade or the Slac SuperB parameter list