(present: MF, TH, TI, RK, ML)

N.B.: The email traffic at UVic is in a snarled-up state, which might not necessarily get resolved quickly. So, if there is any topic on which you might want to get a fast response from your colleague, it might be safest to use more antiquated methods of communication, like: walk down the hallway to their office, use the phone, write a note on paper....

Naoko emailed a list of things she is working on: She is making a list of bad digital filtering weights parameters, which she will then send to Pavol, with the hope that things can be improved or at least problems can be tracked down. Hendrik has made a lot of progress in his work, but Naoko thinks that there is still room for improvement and more precise analysis. For that, the current signal correction (phase correction) is not enough, because of:
- imperfection of the cubic fit
- cross talk
- lack of statistics
Therefore, Naoko and Rob will
- try again to improve the signal reconstruction with FFT and
- think of other ways to correct phase dependency cell by cell.

As far as analyzing the 119 GeV positron data: Point D(and J) will be good for analysis, they have high statistics and less phase dependency (a few percent). Point E has sizable phase dependency.

Naoko comments were very much appreciated by the group. Michel explained some of the difficulties these proposed approaches will bring with them. The pulse-shape analysis is extremely important and, apart from the timing problems the difficulties arise e.g. from the intrinsic knowledge of the actual pulse shape, the exact details of the calibration procedure (- electronics and the understanding thereof.).

Michel reported that there is interest in his volume calculations. He will prepare together with Tamara a list of volumes associated with cell numbers in the ATLAS coordinate system, which will be passed on to Claire Bourdarios.

Tamara showed some plots where she plotted the number of cells in a cluster vs the occupancy cut. And she also showed some display-plots of chosen cells. Her plots and some more details are available on a web page. Her aim is now to look at the chosen cells for different runs and see which ones are in common for what runs, so that she can finally come up with one set of cells for all the runs she intends to use. Although her algorithm has already eliminated several cells that are obviously noisy, there are still a few left.
Since Tamara is tackling pion analysis, Richard was wondering (as an idea) whether it would be possible to find the pion in the HEC and then backtrack to the EMEC and look for hot cells that way.

Richard and Tayfun have been looking at the spacial response of the EMEC. In particular the y-position (which they get from layer 1) and the x and phi position (in layer 2). After limiting themselves to small event-by-event clusters, they are now able to detect the fine-structure in the data. One of the next aims is to analyze the output from all the electron runs and see whether it is possible to determine where the F1/F2 counters should nominally be located.


Next week Margret will be away, and Richard has kindly offered to take care of projector and laptop setup for the meeting.