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SUMMARY:ALICE upgrades
DTSTART;VALUE=DATE-TIME:20230531T073000Z
DTEND;VALUE=DATE-TIME:20230531T075500Z
DTSTAMP;VALUE=DATE-TIME:20261010T083208Z
UID:indico-contribution-390@indico.ipb.ac.rs
DESCRIPTION:Speakers: Giuseppe  Bruno (Dipartimento di fisica - Politecnic
 o di Bari and INFN Bari\, Italy)\nThe ALICE collaboration pursues several 
 upgrades to further extend the reach of heavy-ion physics at the LHC. For 
 LHC Run 4 (2029-2032)\, ALICE is pioneering the use of bent\, wafer-scale 
 pixel sensors to produce truly cylindrical tracking layers with very low m
 aterial budget to replace the three innermost layers of the inner tracking
  system. The resulting improvement in pointing resolution will allow new m
 easurements of heavy-flavour hadrons and dielectrons. In addition\, a Forw
 ard Calorimeter (FoCal) system combines a high-granularity electromagnetic
  silicon-tungsten calorimeter with excellent two-shower separation for neu
 tral pion reconstruction with a conventional hadronic calorimeter for phot
 on isolation. Direct photon measurements with FoCal will provide unique co
 nstraints on the low-x gluon structure of protons and nuclei via forward m
 easurements of direct photons.\nFurthermore “ALICE 3” is proposed as t
 he next-generation experiment for LHC Run5 and beyond to address unresolve
 d questions about the quark-gluon plasma by precise measurements of heavy-
 flavour probes as well as electromagnetic radiation in heavy-ion collision
 s. In order to achieve the best possible pointing resolution a concept for
  the installation of a high-resolution vertex tracker in the beampipe is b
 eing developed. It is surrounded by a silicon-pixel tracker covering rough
 ly 8 units of pseudorapidity. To achieve the required particle identificat
 ion performance\, a combination of a time-of-flight system and a Ring-Imag
 ing Cherenkov detector is foreseen. Further detectors\, such as an electro
 magnetic calorimeter\, a muon identifier\, and a dedicated forward detecto
 r for ultra-soft photons\, are being studied. \nIn this presentation\, I w
 ill outline the detector concept as guided by the desired physics reach.\n
 \nhttps://events.saifa.rs/event/554/contributions/390/
LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia
URL:https://events.saifa.rs/event/554/contributions/390/
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