sPHENIX EMCal discussion

["Bailey, Virginia Ruth" <vbailey2 AT illinois.edu>]

Hello all,

Attached are some slides detailing the analysis of the high rapidity runs from the testbeam.  The hodoscope cuts were chosen based on the mean energy by hodoscope cuts plots (shown on slide 3) as we have done before for the second scan data.  Due to the positioning of the blocks in these runs, the energy is spread much more in the horizontal direction, so I chose not to include any horizontal hodoscope cuts on the data.  Because of this, the high rapidity runs have more statistics than the scan 2 runs, causing the lower statistical error in the high rapidity resolution plot.  Looking at the 5 by 5 tower energy distributions, the energies are lower for the high rapidity runs than for the nominal runs, showing us that the high rapidity showers spread to an area larger than the 5 by 5 towers we've been looking at.  We suspect that this could be partially responsible for the higher resolution we see.

Let me know if you have any questions or comments.

Best,

Virginia

Attachment: high rapidity.pdf
Description: high rapidity.pdf