Vranješ, Nenad. Adžić, Petar, 1950- Burić, Maja, 1960- Bonekamp, Marten. Živković, Lidija http://creativecommons.org/licenses/by-nc-nd/2.0/at/legalcode info:eu-repo/semantics/bachelorThesis 2017 OSNO - Opšta sistematizacija naučnih oblasti, Elementarne čestice. Fizika polja. Fizika visokih energija OSNO - Opšta sistematizacija naučnih oblasti, Elementarne čestice. Fizika polja. Fizika visokih energija W-boson mass, muon momentum calibration, hadronic recoil, ATLAS,LHC masa W bozona, kalibracija merea impulsa miona, hadro-nski uzmak, ATLAS, LHC eng https://phaidrabg.bg.ac.rs/o:17671 cobiss:50060303 thesis:5792 III, 270 listova 40026943 bytes U ovoj tezi je opisano meree mase W bozona, koje se zasniva na podacima prikup enim na detektoru ATLAS tokom 2011. godine u proton{proton sudarima na energiji od 7 TeV na Velikom sudaraqu hadrona (LHC). Prema Standardnom modelu masa W bozona zavisi od mase top kvarka i mase Higsovog bozona kroz korekcije vixeg reda. Preciznim mereem mase top kvarka, W i Higsovog bozona mogue je testirae konzistentnosti Standardnog modela, i bilo koje neslagae predstav a indirektan dokaz postojaa qestica izvan Standardnog modela. Masa W bozona je preth- odno izmerena na eksperimentima na Velikom eletron{pozitronskom su- daraqu, kao i na eksperimentima CDF i D0 na proton{antiproton su- daraqu Tevatron. Trenutna sreda vrednost izmerene mase W bozona iznosi mW = 80385 15 MeV, dok je najpreciznije meree ostvareno na eksperimentu CDF sa neodreenoxu 19 MeV. Sa druge strane, na osno- vu globalnog fita parametara Standardnog modela predviena masa W bozona iznosi mW = 80358 8 MeV... In this thesis measurement of the W-boson mass based on data collected during 2011 in proton–proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector at the Large Hadron Collider (LHC) is presented. In the Standard Model, the Wboson mass depends on the top quark mass and the Higgs-boson mass through higher order corrections. Therefore, a precise measurements the mass of the top quark, Wand Higgs-boson, provide a stringent test of the Standard Model. Any observed inconsistency can be an indirect proof of the physics beyond the Standard Model. Previous measurements of the mass of the W boson are performed at the Large electron–positron collider, and at the Tevatron proton–antiproton collider with the CDF and D0 experiments. The current world average value of the W-boson mass is mW = 8038515 MeV, while the most precise single measurement with an uncertainty of 19 MeV is performed with the CDF experiment. On the other hand, the indirect constraint on the W-boson mass from the global electroweak fit predicts mW = 80358 8 MeV... Physics - Experimental High Energy Physics /Fizika - Eksperimentalna fizika visokih energija Datum odbrane: 20.11.2017. Measurement of the W boson mass and the calibration of the muon momentum with the ATLAS detector Dimitrievska, Aleksandra R.