CALOR 2018

Session

Session 12

24 May 2018, 13:30

Ballroom, Erb Memorial Union (University of Oregon)

Conveners

Session 12

• Gerald Eigen (University of Bergen (NO))

30. Precision Timing Calorimetry with the upgraded CMS Crystal ECAL

Vincenzo Ciriolo (Università degli Studi e INFN Milano (IT))

24/05/2018, 13:30

Particle detectors with a timing resolution of order 10 ps can improve event reconstruction at high luminosity hadron colliders tremendously. The upgrade of the Compact Muon Solenoid (CMS) crystal electromagnetic calorimeter (ECAL), which will operate at the High Luminosity Large Hadron Collider (HL-LHC), will achieve a timing resolution of around 30 ps for high energy photons and electrons....

8. A High-Granularity Timing Detector for the Phase-II upgrade of the ATLAS Calorimeter system: detector concept, description and R&D and first beam test results

Usha Mallik (Iowa)

24/05/2018, 13:55

The expected increase of the particle flux at the high luminosity phase of the LHC (HL-LHC) with instantaneous luminosities up to L ≃ 7.5 × 1034 cm−2 s-1 will have a severe impact on the ATLAS detector performance. The pile-up is expected to increase on average to 200 interactions per bunch crossing. The reconstruction and trigger performance for electrons, photons as well as jets and...

46. Precision Timing with the CMS MIP Timing Detector

Cristián Peña (Fermi National Accelerator Lab. (US))

24/05/2018, 14:20

The Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase II upgrade program to prepare for the challenging conditions of the High-Luminosity LHC (HL-LHC). A new timing layer is designed to measure minimum ionizing particles (MIPs) with a time resolution of ~30ps and hermetic coverage up to a pseudo-rapidity of |eta|=3. This MIP Timing...

65. New method of out-of-time energy subtraction for the CMS hadronic calorimeter

Jay Lawhorn (California Institute of Technology (US))

24/05/2018, 14:45

The CMS hadronic calorimeter employs plastic-scintillator-based sampling calorimeters in the barrel and endcap (HBHE). In Run 2, the LHC operates at 13 TeV center of mass energy with up to 50 simultaneous collisions per bunch crossing (pileup) and a 25 ns bunch spacing. The HBHE scintillator light pulse is only 60% contained in a 25 ns window, resulting in significant pulse overlap for...

47. Low Gain Avalanche Diodes for Precision Timing in the CMS Endcap

Serguei Petrushanko (M.V. Lomonosov Moscow State University (RU))

The Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase II upgrade program to prepare for the challenging conditions of the High-Luminosity LHC (HL-LHC). In particular, precision timing can offset the performance degradation due to event pileup at the HL-LHC, recovering the purity of vertices of current LHC conditions. As such, a new...

4. The Electromganetic Calorimeter of the BelleII experiment at SuperKEKB and its upgrade.

Claudia Cecchi (Università di Perugia e INFN-PG)

The upgrade of the KEKB e+e− collider to SuperKEKB and of the Belle detector to BelleII has just been completed at KEK (Tsukuba, Japan) and the accelerator is starting the Phase2 operations on March 2018 for a new experiment with high luminosity up to 8×1035cm−2s−1.
We report on the upgrade of the electromagnetic calorimeter (ECL) which will provide good energy and time resolution in a high...