Abstract

HADES (High Acceptance Di-Electron Spectrometer) is located at the GSI (Helmholtzzentrum für Schwerionenforschung) Darmstadt. It is an experiment focused on the study of the hot and dense nuclear matter mainly via the detection of the di-lepton pairs. Electromagnetic CALorimeter (ECAL) was recently added to the HADES setup. This new subdetector allows measuring of photons from the decay of neutral mesons and resonances. It also allows to discriminate between electrons and pions in the high-momenta region over 400 MeV/c. ECAL follows same hexagonal geometry as HADES, i.e. it consists of six sectors in azimuth. The first four sectors were finished and commissioned in 2018. The first experiment with ECAL included in HADES setup took place on March 2019, investigating the Ag+Ag reaction at beam energy of 1.65 A GeV. During the commissioning, several issues popped up and they were addressed. The issues and their solution will be described in the article.

Details

Title
Commissioning of the electromagnetic calorimeter ECAL of the HADES experiment
Author
Chudoba, P 1 ; Borisenko, D 2 ; Chlad, L 1 ; Galatyuk, T 3 ; Guber, F 2 ; Gumberidze, M 4 ; Kugler, A 1 ; Lalik, R 5 ; Morozov, S 2 ; Pechenov, V 4 ; Pethukov, O 2 ; Prozorov, A 1 ; Rathod, N 5 ; Pietraszko, J 4 ; Reshetin, A 2 ; Rost, A 3 ; Shabanov, A 6 ; Salabura, P 5 ; Svoboda, O 1 ; Tlusty, P 1 

 Nuclear Physics Institute, Czech Academy of Sciences, 25068 Rez, Czech Republic 
 Moscow institute of physics and technology, 117303 Moscow Russia 
 Technical University of Darmstadt, 64277 Darmstadt, Germany 
 GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany 
 Smoluchowski Institute of Physics, Jagiellonian University of Krakow, 30-059 Cracow Poland 
 Moscow institute of physics and technology, 117303 Moscow Russia; Institute for Nuclear Research, Russian Academy of Sciences, 117312 Moscow, Russia 
Publication year
2020
Publication date
Oct 2020
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2571165265
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.