Geodesic
Study of electrons energy resolution, in CMS(LHC) еxperiment using simulated data
Proceedings of the Yerevan State University. Physical and mathematical sciences, Tome 54 (2020) no. 1, pp. 50-55.

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This work is dedicated to the study of energy resolution of electrons in CMS (LHC) [1] experiment using simulated data of “Drell-Yan” process with $e–e+$ yield in pp-interactions at $\sqrt{s} = 13 TeV$. The work contains a brief description of event modeling and electron reconstruction from the simulated data. Energy resolution was estimated from the distribution of reconstructed and generated electrons transverse energies ratio. Two approaches has been used in calculations. In the first approach – the standard definition of energy resolution has been used (Full width at half maximum – FWHM), and in the second – as a describing value for energy resolution the root mean square of distribution has been taken.
Keywords: Large Hadron Collider, CMS, electron, energy resolution, process simulation. 
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A. A. Hayrapetyan. Study of electrons energy resolution, in CMS(LHC) еxperiment using simulated data. Proceedings of the Yerevan State University. Physical and mathematical sciences, Tome 54 (2020) no. 1, pp. 50-55. http://geodesic.mathdoc.fr/item/UZERU_2020_54_1_a6/

[1] S. Chatrchyan et al., “CMS Collaboration, the CMS Experiment at the CERN LHC”, JINST, 3 (2008) | DOI

[2] F. Siegert, Monte-Carlo Event Generation for the LHC, Doctoral thesis, Durham University, 2010

[3] Chatrchyan S. et al., “CMS Collaboration, Performance and Operation of the CMS Electromagnetic”, JINST, 2010, arXiv: 0910.3423v3 [physics.ins-det]

[4] V. Khachatryan, et al., CMS Collaboration, Performance of Electron Reconstruction and Selection with the CMS Detector in Proton-Proton Collisions at $\sqrt{s} = 8 TeV$, JINST, 2015, arXiv: 1502.02701v2 [physics.ins-det]