Development of Improved Methods for the Reconstruction of η Mesons in the ALICE Experiment
https://doi.org/10.56304/S2079562920060111
Abstract
In this paper, we consider the measurement of η-mesons by a statistical method with the rejection of pairs of clusters with an invariant mass corresponding to π0-meson. The efficiency (the ratio of the number of η-mesons that passed selection to the number of η-mesons before selection) and the improvement of the signalto-background ratio as a function of the transverse momentum for proton-proton collisions at energy at the energy = 13 TeV simulated using PYTHIA 8.2 (Monash 2013) were measured. The efficiency of the new method is about 80 % with a 20–50 % improvement in the signal-to-background ratio.
About the Authors
D. S. Blau
National Research Center “Kurchatov Institute”
Russian Federation
Russian Federation
123182; Moscow
M. S. Golubeva
National Research Center “Kurchatov Institute”
Russian Federation
Russian Federation
123182; Moscow
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Review
For citations:
Blau D.S., Golubeva M.S. Development of Improved Methods for the Reconstruction of η Mesons in the ALICE Experiment. Nuclear Physics and Engineering. 2021;12(3):166-169. (In Russ.) https://doi.org/10.56304/S2079562920060111
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