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Osnovna zamisel tega dela je bila obravnavati fiziko, ki sega preko Standardnega Modela (SM) in s pomočjo računalniških simulacij ugotoviti, ali je s sedanjimi eksperimenti mogoče potrditi takšne modele. V ta namen najprej obravnavam standardni Model in interakcije v njegovem bozonskem sektorju, ki v nadaljevanju igrajo ključno vlogo pri možnosti detekcije novih delcev. Nadaljujem z vpeljavo obsežnejšega modela. Naravna pot razširitve standardnega modela je vključitev v model, ki se ponaša z večjo simetrijo. Tu se osredotočam na levo - desno simetrični model (LRSM), ki enakovredno obravnava levo in desno ročne kiralnosti. Ob vpeljavi osnovnih lastnosti tega modela predstavim tudi interakcije, nove delce ter gugalnični mehanizem tipa I, ki razloži določene nejasnosti. Magistrsko nalogo zaključim s poglavjem o računalniških simulacijah, v katerem so predstavljeni rezultati simulacij, preko katerih ugotovimo kateri procesi trenutno ostajajo v dosegu današnjih eksperimentov v fiziki visokih energij. The basic idea of this thesis was to discuss physics beyond Standard Model (SM) and to find out whether such models could be confirmed with the currently available experimental equipment via computer simulations. Firstly, I focus on Standard Model and interactions in its boson sector, which take crucial part in potentially possible detection of new particles. Secondly, I introduce a more comprehensive model. A natural way of extending the Standard Model is to integrate it into a more symmetric framework. Here, I focus on Left-Right Symmetric Model (LRSM), which treats left- and right-handed chiralities equally. After defining basic properties of the model, I revisit its interactions and new particles. Furthermore, I consider a Type I see saw mechanism, which explains some obscurities. Finally, I conclude the thesis with the chapter about computer simulations, where we find out which of the discussed processes are within reach of the potential detection by the current high energy physics experiments.