Intersection of R2-445 and R2-446 reconstruction variants study in Sežana

This thesis deals with the possible variants of the reconstruction of the signalised intersection in Sežana. We have done a comparative analysis of the three possible variants of the intersection reconstruction. Studies include the feasibility analysis, capacity analysis, safety analysis and the economic analysis for the three possible variants. The proposed solution is a construction of a roundabout at the conceptual level, in accordance with the technical specifications for public roads. Data were obtained on automatic and manual traffic count, traffic light control program, car accidents and surveying plan

Detector Simulation Challenges for Future Accelerator Experiments

Detector simulation is a key component for studies on prospective future high-energy colliders, the design, optimization, testing and operation of particle physics experiments, and the analysis of the data collected to perform physics measurements. This review starts from the current state of the art technology applied to detector simulation in high-energy physics and elaborates on the evolution of software tools developed to address the challenges posed by future accelerator programs beyond the HL-LHC era, into the 2030–2050 period. New accelerator, detector, and computing technologies set the stage for an exercise in how detector simulation will serve the needs of the high-energy physics programs of the mid 21st century, and its potential impact on other research domains

Detector simulation challenges for future accelerator experiments

Detector simulation is a key component for studies on prospective future high-energy colliders, the design, optimization, testing and operation of particle physics experiments, and the analysis of the data collected to perform physics measurements. This review starts from the current state of the art technology applied to detector simulation in high-energy physics and elaborates on the evolution of software tools developed to address the challenges posed by future accelerator programs beyond the HL-LHC era, into the 2030–2050 period. New accelerator, detector, and computing technologies set the stage for an exercise in how detector simulation will serve the needs of the high-energy physics programs of the mid 21st century, and its potential impact on other research domains

Model-independent search for the presence of new physics in events including H → γγ with s \sqrt{s} = 13 TeV pp data recorded by the ATLAS detector at the LHC

Abstract A model-independent search for new physics leading to final states containing a Higgs boson, with a mass of 125.09 GeV, decaying to a pair of photons is performed with 139 fb−1 of s $$\sqrt{s}$$ = 13 TeV pp collision data recorded by the ATLAS detector at the Large Hadron Collider at CERN. This search examines 22 final states categorized by the objects that are produced in association with the Higgs boson. These objects include isolated electrons or muons, hadronically decaying τ-leptons, additional photons, missing transverse momentum, and hadronic jets, as well as jets that are tagged as containing a b-hadron. No significant excesses above Standard Model expectations are observed and limits on the production cross section at 95% confidence level are set. Detector efficiencies are reported for all 22 signal regions, which can be used to convert detector-level cross-section limits reported in this paper to particle-level cross-section constraints

Iskanje težkih leptonov v gugalničnem mehanizmu tipa III z detektorjem ATLAS na trkalniku LHC

The thesis presents a search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism. The search uses proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139 fb$^{-1}$ of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis focuses on the final state with two light leptons (electrons or muons) of different flavour and charge combinations, with at least two jets and large missing transverse momentum. A cut-based approach is extended using a multivariate analysis. No significant excess over the Standard Model expectation is observed. The results are translated into exclusion limits on heavy lepton masses, and the observed lower limit on the mass of the type-III seesaw heavy leptons is 790 GeV using cut-based and 950 GeV using multivariate approach at 95% confidence level.V doktorskem delu bom predstavil iskanje težkih leptonov v gugalničnem mehanizmu tipa III z detektorjem ATLAS na Velikem hadronskem trkalniku. Za analizo so bili uporabljeni podatki, zajeti pri trkih protonov s težiščno energijo 13 TeV med drugim obdobjem trkov in meritev (Run 2). Skupna integrirana luminoznost znaša 139 fb$^{-1}$. Pri analizi sem se osredotočil na končna stanja z dvema lahkima leptonoma (elektroni ali mioni) v različnih možnih kombinacijah okusa in naboja, ob tem pa sta v dogodku še vsaj dva pljuska hadronov in visoka manjkajoča transverzalna gibalna količina. V sklopu dela sem razširil pristop pravokotnih rezov s strojnim učenjem. Statistična obdelava podatkov ne nakazuje nobene sledi novih delcev. Iz rezultatov sem izpeljal spodnje meje za mase težkih leptonov po gugalničnem mehanizmu tipa III, ki znašajo 790 GeV pri uporabi pravokotnih rezov in 950 GeV z uporabo strojnega učenja

PROGRAMMING AND ANALYSIS OF A PLANE FINITE ELEMENT FOR STRUCTURAL DYNAMICS

Diplomsko delo prikazuje način izpeljave, programiranja in numeričnega testiranja kinematično nelinearnega ravninskega končnega elementa (KE) za računanje prehodnega dinamičnega odziva. V ta namen so na kratko predstavljene potrebne teoretične enačbe KE. Temu sledi kodiranje podprogramov končnega elementa z uporabo naprednega orodja AceGen za simbolično računanje in programiranje. Na koncu so podprogrami v FORTRANU vgrajeni v raziskovalni MKE program EMS in testirani z različnimi integracijskimi shemami. Temu sledi kratka predstavitev rezultatov z razpravo.This diploma work focuses on development, coding and numerical testing of a kinematically nonlinear plane finite element(FE) for dynamic transient response computations. For this purpose the underlying FE equations are discussed briefly. After that the finite element routines are codied by using the advanced symbolic programming tool AceGen. Finally, the FE code in FORTRAN is integrated into the research FEA program EMS and tested with several implicit integrations schemes. The results are briefly presented and discussed

ATLAS + CMS searches beyond inclusive resonances in leptonic final states

n/

Tests of neutrino mass models with the ATLAS detector

Multiple theories beyond the Standard Model predict the existence of heavy neutrinos, such as the Type I or Type III seesaw mechanisms that can explain the light neutrino masses, or left-right symmetric models that restore parity symmetry in weak interactions at a higher energy scale and predict right-handed counterparts to the weak gauge bosons. Searches for such heavy Majorana or Dirac neutrinos with the ATLAS detector, which can also lead to boosted or also displaced signatures, are presented using proton-proton data from the LHC at a center-of-mass energy of 13 TeV