Abstract
The search for Supersymmetric extensions of the Standard Model (SUSY) remains a hot topic in high energy phisycs in the light of the discovery of the Higgs boson with mass of 125 GeV. Supersymmetric particles can cancel out the quadratically- divergent loop corrections to the Higgs boson mass and can explain presence of Dark Matter in the Universe. Moreover, SUSY can unify the gauge couplings of the Standard Model at high energy scales. Under certain theoretical assumptions, some of the super- symmetric particles are preferred to be lighter than one TeV and their discovery can thus be accessible at the LHC. The recent results from searches for Supersymmetry with the ATLAS experiment which utilized up to 21 fb −1 of proton-proton collisions at a center of mass energy of 8 TeV are presented. These searches are focused on inclusive production of squarks and gluinos, on production of third generations squarks, and on electroweak production of charginos and neutralinos. Searches for long-lived particles and R-parity violation are also summarized in the document.
Highlights
Some of the supersymmetric particles are preferred to be lighter than one TeV and their discovery can be accessible at the Large Hadron Collider (LHC)
Supersymmetry (SUSY) [1,2,3,4,5,6,7,8,9] is the best-known exstension of the Standard Model (SM): it is a generalization of the space-time symmetries of quantum field theory which transform fermions into bosons and viceversa
No significant excesses over the SM predictions have been observed in Supersymmetric extensions of the Standard Model (SUSY) searches with the ATLAS experiment
Summary
Supersymmetry (SUSY) [1,2,3,4,5,6,7,8,9] is the best-known exstension of the Standard Model (SM): it is a generalization of the space-time symmetries of quantum field theory which transform fermions into bosons and viceversa. It provides a natural solution to the hierarchy problem by canceling out the quadratically divergent quantum corrections to the Higgs boson mass with the introduction of the superpartner of the top quark (hereafter named stop) [10,11,12]. The matter sector consists of three generations of quarks and leptons and their superpartners, squarks (q) and sleptons (l) An LSP escapes the detector undetected and its presence can be deduced from imbalance of momentum (whose magnitude is hereafter referred as ETmiss)
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