Conveners
High Luminosity LHC
- Ana Maria Henriques Correia (CERN)
High Luminosity LHC
- Adam Para (Fermilab)
Richard Polifka
(University of Toronto (CA))
5/18/16, 8:30 AM
The increased particle flux at the high luminosity phase of the LHC (HL-LHC) with instantaneous luminosities of up to $7.5$ times the original design value of $10^{34}$ cm$^{-2}$ s$^{-1}$ will have an impact on many sub-systems of the ATLAS detector. In particular, in the Liquid Argon (LAr) forward calorimeter (FCal), which was designed for operation at LHC luminosities, the associated...
Eduardo Valdes Santurio
(Stockholm University (SE))
5/18/16, 8:50 AM
The Tile Calorimeter (TileCal) is the hadronic calorimeter of ATLAS covering the central region of the ATLAS experiment. TileCal is a sampling calorimeter with steel as absorber and scintillators as active medium. The scintillators are read-out by wavelength shifting fibers coupled to photomultiplier tubes (PMT). The analogue signals from the PMTs are amplified, shaped and digitized by...
Dr
Christophe Ochando
(Centre National de la Recherche Scientifique (FR))
5/18/16, 9:10 AM
Calorimetry at the High Luminosity LHC (HL-LHC) faces two enormous challenges, particularly in the forward direction: radiation tolerance and unprecedented in-time event pileup. To meet these challenges, the CMS experiment has decided to construct a High Granularity Calorimeter (HGCAL), featuring a previously unrealized transverse and longitudinal segmentation, for both electromagnetic and...
Zoltan Gecse
(Fermi National Accelerator Lab. (US))
5/18/16, 9:30 AM
The High Granularity Calorimeter (HGCAL) is the technology choice of the CMS collaboration for the endcap calorimetry upgrade planned to cope with the harsh radiation and pileup environment at the High Luminosity-LHC. The HGCAL is realized as a sampling calorimeter, including an electromagnetic compartment comprising 28 layers of silicon pad detectors with pad areas of 0.5 — 1.0 cm^2...
Simone Pigazzini
(Universita & INFN, Milano-Bicocca (IT). On behalf of the CMS collaboration)
5/18/16, 10:20 AM
The electromagnetic calorimeter (ECAL) of the Compact Muon Solenoid (CMS) Experiment is made of about 75000 scintillating lead tungstate crystals arranged in a barrel and two endcaps. The single-channel time resolution of ECAL measured at beam tests and for high energy showers from LHC Run I is better than 100 ps.
For the high luminosity phase of the LHC (HL-LHC) we expect an average of 140...
Jean-Baptiste Sauvan
(CERN)
5/18/16, 10:40 AM
The CMS experiment has chosen a novel high granularity calorimeter for the forward region as part of its planned upgrade for the high luminosity LHC. The calorimeter will have fine segmentation in both the transverse and longitudinal directions and will be the first such calorimeter specifically optimised for particle flow reconstruction to operate at a colliding beam experiment. The...
Frank Chlebana
(Fermi National Accelerator Lab. (US))
The challenges of the High-Luminosity LHC (HL-LHC) are driven by the large number of overlapping proton-proton collisions (pileup) in each bunch-crossing and the extreme radiation dose to detectors positioned at high pseudorapidity. To overcome this challenge CMS is designing and implementing an endcap electromagnetic+hadronic sampling calorimeter employing silicon pad devices in the...
Nural Akchurin
(Texas Tech University (US))
The High Granularity Calorimeter (HGCAL) is the technology choice of the CMS collaboration for the endcap calorimetry upgrade planned to cope with the harsh radiation and pileup environment at the High Luminosity-LHC and to optimally reconstruct physics objects such as electrons, photons and jets. In this context, profiting from fast-timing information (~tens of picoseconds) embedded in the...
