Monday meeting

Europe/Zurich
42/R-014 (CERN)

42/R-014

CERN

6
Show room on map

PCB readout (Revathy, summer student)

 * PCB layout shown

 * First calculations of the capacitance of the shields presented

 * Next steps: capacitance of the traces

 

Update on ECal (Anna)

 * Freezing the barrel geometry: 50 degrees inclination angle, 1408 planes

 * Endcaps

        - Geometry in the official SW

        - Correction constants calculated

        - Energy resolution with 7% sampling term and 0 constant term (perfect planes, no inclination)

 * Forward calorimeters

        - Geometry ready, will be pushed to the official SW soon

        - Running last tests

 

Reconstruction of photons from pi0 decay (Hamad, summer student)

  * Tests with 10x higher eta-segmentation (0.001) than is the default

  * 10 GeV pions -> in about ~40% of events we reconstruct 2 clusters, 1 cluster in most of the events

  * 25 GeV pions -> we are not able to reconstruct 2 clusters, only in few events

  * Martin: in ATLAS we use information from the 1st layer where we try to search for 2 maximums

 https://arxiv.org/abs/1606.01813 (Appendix A, page 41, equations 11 and 12 are those that reject pi0)

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