Reconstruction Of Signal Amplitudes İn The Cms Electromagnetic Calorimeter İn The Presence Of Overlapping Proton-Proton İnteractions
Yükleniyor...
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
The CMS Collaboration
Erişim Hakkı
Özet
A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the increased out-of-time pileup contribution to the signal following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015-2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.
Açıklama
Anahtar Kelimeler
Instrumentation and Detectors (physics.ins-det), High Energy Physics, Experiment (hep-ex)
Kaynak
WoS Q Değeri
Q4
Scopus Q Değeri
N/A
Cilt
Sayı
Künye
JINST 15 (2020) P10002
