Problem stabilnosti Higssove mase u SM-u i MSSM-u

master's thesis

• Title (english): Higgs mass stability problem in the SM and in the MSSM
• Author: Petar Grahovac
• Mentor: Amon Ilakovac (mentor)
• Committee member: Amon Ilakovac (predsjednik povjerenstva)
• Committee member: Krešimir Kumerički (član povjerenstva)
• Committee member: Mirko Planinić (član povjerenstva)
• Committee member: Dubravko Klabučar (član povjerenstva)
• Committee member: Nikola Poljak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2019-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

Tema obuhvaća u svom uvodnom dijelu kratak pregled svih elementarnih čestica, koje su prema SM-u podijeljene u dvije velike grupe: fermione i bozone. Osim samog uvoda u SM-u bilo je rečeno nešto najosnovnije i najbitnije o fermionima, česticama koje izgrađuju svu poznatu tvar u svemiru, i o bozonima, prenositeljima četiri, odnosno tri temeljne interakcije u prirodi između fermiona. Zatim su detaljno opisane sve najvažnije karakteristike SM-a, uključujući baždarne transformacije i interakcije, spontani lom simetrije i lagranžijan u SM-u, a onda je detaljno prikazan i Higssov mehanizam u SM-u uz sve svoje karakteristike. Naredni dio teme je obuhvatio općenito gradivo o Supersimetrijama, te o Minimalnom Supersimetričnom Standardnom Modelu (MSSM-u), te je na kraju predstavljen prikaz izračuna mase Higgsovog bozona uz pomoć petlji u oba modela.

Abstract (english)

The thesis covers in its introductory section a brief overview of all elementary particles, which according to the Standard Model (SM) are divided into two large groups: fermions and bosons. In addition to the introduction to the SM, it was said to be the most basic and most important thing about the fermions, particles that build all the known matter in the universe, and about the bosons, the mediators four or three fundamental interactions between the fermions. Then, all the most important characteristics of the SM, including gauge transformations and interactions, spontaneous breaking of the symmetry (SBS) and lagrangian in the SM, are described in detail, and then the Higgs mechanism in the SM is described in detail with all its features. The next part of the thesis covered general literature on the Supersymmetries, and the Minimal Supersymmetric Standard Model (MSSM), and finally presented a calculation of the Higgs boson mass with the help of loops in both models.

• Keywords: SM; masa Higgsovog bozona; Supersimetrije; MSSM
• Keywords (english): Standard Model; Higgs boson mass; Supersymmetry; MSSM
• Language: croatian
• URN:NBN: urn:nbn:hr:217:362303
• Study programme: Title: Physics; specializations in: Research; Course: Research; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra fizike (magistar/magistra fizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-01-09 11:02:05