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SUMMARY:Development of highly granular hadronic calorimetry with glass sci
 ntillator tiles
DTSTART;VALUE=DATE-TIME:20230907T160000Z
DTEND;VALUE=DATE-TIME:20230907T162000Z
DTSTAMP;VALUE=DATE-TIME:20260714T125757Z
UID:indico-contribution-2969@indico.tlabs.ac.za
DESCRIPTION:Speakers: Dejing Du (Institute of High Energy Physics\, Chines
 e Academy of Sciences)\nFuture electron-positron colliders (e.g. the Circu
 lar Electron Positron Colllider\, namely CEPC) impose stringent requiremen
 ts on the energy resolutions of hadron and jets for the precision physic p
 rograms of the Higgs\, Z\, W bosons and the top quark. To address the chal
 lenges\, one of the state-of-art calorimetry options is high-granularity c
 alorimetry based on the particle flow algorithms (PFA). The CEPC team has 
 proposed a new detector concept named “the 4th detector concept”. A ma
 jor motivation is to significantly improve the Boson Mass Resolution (BMR)
  of better than 3% compared to 4%\, which corresponds to the performance o
 f the baseline detector proposed in the CEPC Conceptual Design Report (CEP
 C CDR).\nAs a key sub-detector in “the CEPC 4th detector concept”\, a 
 new design of highly granular sampling hadronic calorimetry (HCAL) has bee
 n proposed\, which consists of sensitive layers with glass scintillator ti
 les and absorber plates. A major motivations is to significantly improve t
 he hadronic energy resolution with a higher energy sampling fraction and a
  significantly lower energy threshold\, which in turn requires the merits 
 of high density and high light yield for the glass scintillator materials.
  A simulation model with Geant4 has been developed for the design optimiza
 tions of the glass scintillator HCAL and quantitative hadronic performance
  with single hadrons. Furthermore\, physics potentials of the PFA performa
 nce have also been evaluated in the CEPC full detector simulation. Highlig
 hts of the expected hadronic performance and hardware developments will be
  presented in this contribution. Future beamtest preparations of a few gla
 ss scintillator tiles are currently ongoing and preliminary results could 
 be expected as well.\n\nhttps://indico.tlabs.ac.za/event/112/contributions
 /2969/
LOCATION: Meeting Room 2.41 - 2.43
URL:https://indico.tlabs.ac.za/event/112/contributions/2969/
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