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 contribution to the signal of the increased number of out-of-time interactions per beam crossing 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.
TY - JOUR
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Ambrogi, F.
AU - Asilar, E
AU - Adžić, Petar
AU - Ćirković, Predrag
AU - Devetak, Damir
AU - Đorđević, Miloš
AU - Milošević, Jovan
AU - Milenović, Predrag
PY - 2020
UR - https://vinar.vin.bg.ac.rs/handle/123456789/9767
AB - 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 contribution to the signal of the increased number of out-of-time interactions per beam crossing 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.
T2 - Journal of Instrumentation
T1 - Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions
VL - 15
IS - 10
SP - P10002
DO - 10.1088/1748-0221/15/10/P10002
ER -
@article{
author = "Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Asilar, E and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan and Milenović, Predrag",
year = "2020",
abstract = "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 contribution to the signal of the increased number of out-of-time interactions per beam crossing 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.",
journal = "Journal of Instrumentation",
title = "Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions",
volume = "15",
number = "10",
pages = "P10002",
doi = "10.1088/1748-0221/15/10/P10002"
}
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milošević, J.,& Milenović, P.. (2020). Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions. in Journal of Instrumentation, 15(10), P10002.
https://doi.org/10.1088/1748-0221/15/10/P10002
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J, Milenović P. Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions. in Journal of Instrumentation. 2020;15(10):P10002.
doi:10.1088/1748-0221/15/10/P10002 .
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E, Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, Milenović, Predrag, "Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions" in Journal of Instrumentation, 15, no. 10 (2020):P10002,
https://doi.org/10.1088/1748-0221/15/10/P10002 . .
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