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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2025-08-21 0:50 |
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Conference: Bucharest University Faculty of Physics 2025 Meeting
Section: Theoretical and Computational Physics, High-Energy Physics, Applied Mathematics
Title:
Z^0 Mass Reconstruction at L3 vs. ATLAS Using Fast
Detector Simulations
Authors:
Paul TROFIN
Affiliation:
1)Faculty of Physics, University of Bucharest
E-mail
trofinpaul2@gmail.com
Keywords:
High Energy Physics, L3, ATLAS, mass reconstruction, Monte Carlo simulation,
Delphes, Pythia8
Abstract:
The mass of the Z 0 boson has been reconstructed from the decay channel Z 0 → e− e+ using the L3 and ATLAS cards in Delphes, to model the detectors’ response. The events have been generated with Pythia8, utilizing no initial/final state radiation and multi-parton interactions in the pp collisions. The reconstructed dielectron mass agrees with the current world-average value within 0.03% for L3, while the value is higher for ATLAS due to the nature of the collisions.
References:
[1] S. Navaset al.(Particle Data Group). Phys. Rev. D110, page 030001, 2024.
[2] et al. J. De Favereau. Delphes 3: a modular framework for fast simulation of a generic collider experiment. Journal of High Energy Physics, pages 1–26, 2014.
[3] T. Sjöstrand, S. Ask, J.R. Christiansen, R. Corke, N. Desai, P. Ilten, S. Mrenna, S. Prestel, C.O. Rasmussen, and P.Z. Skands. An introduction to pythia 8.2. Computer Physics Communications, 191:159–177, 2015.
[4] ATLAS Collaboration. Measurement of vector boson production cross sections and their ratios using pp collisions at √s = 13.6 TeV with the ATLAS detector. Phys. Lett. B, 854:138725,May 2024. CERN-EP-2024-069, arXiv:2403.12902v3.
Acknowledgement:
I am deeply grateful to Călin Alexa for very helpful discussions along the way.
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