1. Summary/Conclusions of the SuperB PID Sessions.
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

2. “Summary/Conclusion of
This workshop has been a useful gathering – for the first time, really –
of those who are interested, curious and/or committed to moving forward
to design and then build a SuperB experiment in Italy.
It will come as no surpize that we are short of people – we have few
FTE’s to do the work that must be done !
One correction, when Evgeniy was preparing his slides for his introductory talk, I had removed Barcelona and Valencia from the masthead – but they are expecting to play a role this year, and we welcome them back.
But we have begun to generate the list of tasks that should be done, and
I am sure that among those that will eventually become the SuperB collaboration, these tasks will indeed be done !
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

3. “Summary/Conclusion of
There is an enthusiastic group gathered as interested ‘PIDers’.
Our job is to try to pull together a team that will work together,
from those who show up.
The jobs divide into activities concerning the core PID system –
the Barrel system –, and activities to do with determining if there
should be an End Cap, and the tasks that would have to be then
done if we were to include such devices in our Superb detector.
There were interesting reports of very nice work been done by our
Superb team, and by those who are working towards a Belle
upgrade device. Specifically, the focusing DIRC work, the BINP
aerogel work, the beautiful electronic development at Hawaii and
the aerogel and detector work in Slovenia. There are plans for
evaluating new SiPMT’s at Padua and Barcelona, and developing
a fast detector that may be interesting for TOF.
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

4. “Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

5. “Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

6. “Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

7. “Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

8. “Summary/Conclusion of
For each of the tasks we define, the PID group has to come up
with answers to the following questions :
* Who will work on it, with what kind of manpower ?
* What is the definition of the work to be accomplished ?
* What is the schedule and what are the deliverables ?
* What is the estimated cost ?
There are also specific tasks coming from other areas like
Electronics, DAQ/Trigger and Computing.
* We need to generate answers to those questions, too.
There is some good news though – with so many, many tasks
with no names currently attached, - and some do not require a
lot of prior experience with PID systems, or even great technical
expertise !
WHAT GREAT OPPORTUNITIES OUR SYSTEM HAS TO OFFER !
* Please take a ticket, and stand in line !
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

9. “Summary/Conclusion of
For the Barrel –
* we have to evaluate the sensitivity to backgrounds at the design
luminosity, and determine if it is realistic to live with the base
design of only replacing the current PMT’s in the current SOB, or
to scale back to a smaller size of SOB, and faster PMT’s to give
a margin against background hits. This requires simulation work,
and calculations. Designing and building a new SOB may be an
important new task.
* developing the specifications for the replacement PMT’s, and
characterizing and testing them is a central job.
* designing and building the electronics for the new Barrel DIRC
is yet another central job.
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

10. “Summary/Conclusion of
The Barrel continued, for the upgrade scenario :–
* the design of the mechanics of a smaller SOB is a major task.
* the design of the optics to focus light from the bar boxes onto
a focal plane with minimal aberrations, is a central task.
* specifications, testing and characterizing the pixilated photo-
detectors for the focal plane is yet another major task. There
is good, strong activity in this area.
* design, testing and fabrication of the new electronics is a big
task.
* we need several people to work on urgent computing tasks
requested by the central Computing group, and are having
trouble identifying names within our group!
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

11. “Summary/Conclusion of
For the End Cap –
* what physics will generate the case for required added reach of particle identification ? There needs to be someone working on this, or there will
be no forward or backward PID sub-system.
* along with generating a strong ‘pro’ case, we are also required to examine
the ‘damage’ that such a system will bring on the physics performance of
the whole Superb detector – i.e. extra material in front of the calorimeter,
and geometry issues impacting other systems or hermiticity.
* I would guess that the time scale for a decision on whether there should
be such a system could be delayed until some time between summer
and the end of next year.
* A decision on the technology would be needed some time before the run
up to writing the TDR, but it is likely that we will be in a position to make
that choice, about the same time there is a decision on whether to have
the extra PID coverage.
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

12. “Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

13. “Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

14. “Summary/Conclusion of
Comparison of endcap FARICH and KEDR DC momentum resolution at 30° entrance angle
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

15. “Summary/Conclusion of
Multilayer aerogel
100x100x41 mm, Lsc = 45 mm at 400 nm
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

16. “Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008

17. “Summary/Conclusion of
Goals for ELBA.
Make progress on whether the base BARREL PID
system NEEDS a smaller SOB ! [backgrounds;
optics; PMT choices; mechanics ]
* Make progress on addressing the needs of the
Electronics, Computing and Data Acquisitions
people. [names; specific jobs; connections]
Make progress on assigning names of groups
or individuals to the PID system questions.
This is not solving any big questions for SuperB,
but it would be a good and realistic set of goals for
the next 12 to 14 weeks, for PID !
“Summary/Conclusion of
SuperB PID Sessions
16 th Feb., 2008