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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:39 |
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Conference: Bucharest University Faculty of Physics 2022 Meeting
Section: Theoretical Physics and Applied Mathematics
Title:
From the Standard Model to the Minimal Supersymmetric Standard Model
Authors:
Ioana DUMINICĂ (1,2), Călin ALEXA (2), Andrei GEANTĂ (2), Roxana ZUS (1)
Affiliation:
1) University of Bucharest, Faculty of Physics, Atomistilor 405, Magurele-Bucharest, P.O.Box MG-11 Romania
RO-077125, Bucureşti-Măgurele
2) Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Particle Physics Department, Atomistilor 407, Magurele-Bucharest, P.O.Box MG-6, 76900 Romania
E-mail
ioana.duminica@cern.ch
Keywords:
Standard Model (SM), MSSM
Abstract:
For several decades, the Standard Model of particle physics, benefiting from strong experimental measurements and comprehensive theoretical developments, was able to describe with exceptional accuracy three fundamental interactions - electromagnetic, weak and strong. In addition, the mass generation mechanism that was predicted in 1964 has been experimentally confirmed in 2012. The non-zero mass of neutrinos, the coupling between gravity and all other fundamental forces, the particles which make up the dark matter and the asymmetry between matter and antimatter in the universe are not described by the Standard Model. Supersymmetry (SUSY), a robust theoretical extension of the SM, proposes the existence of new fermions and bosons, superpartners of the SM particles. To each well-known SM quark, lepton, vector boson or Higgs boson, SUSY is associating its own superpartner. In parallel to my conceptual understanding of SUSY, I started to learn about Monte Carlo simulation of the events produced in proton-proton collision that involves supersymmetric particles production, mainly, using PYTHIA simulation tool we produce a pair of squarks. Identifying the resulting decay products, we reconstruct several kinematic variables like invariant mass, transverse mass, transverse momentum, pseudorapidity, etc. A possible background, a quark-antiquark scattering into W boson, is also discussed.
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