Field-dependent renormalisation of baryogenesis condition in thermal inflation model = 열적 초팽창 모델에서 바리온생성 조건의 장 의존 재규격화

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dc.contributor.advisorEwan D. Stewart-
dc.contributor.authorKim, Seolhwa-
dc.description학위논문(석사) - 한국과학기술원 : 물리학과, 2018.8,[ii, 21 p. :]-
dc.description.abstractThe Affleck-Dine (AD) mechanism in thermal inflation model is reviewed. To realize baryogenesis, one condition, softly supersymmetry breaking quadratic mass of slepton and $H_u$ being negative, is imposed on a large field value. To examine its feasibility in low energy, it is necessary to translate the condition in terms of a low scale parameter. A difficulty arises because the condition is imposed on the field value while the goal is to translate it to a low energy scale. Using a simple toy model, I illustrate that after a renormalisation group improvement, under a specific renormalisation condition canceling large logarithms, a field value dependent renormalisation can be achieved and that it is equivalent to solving renormalisation equation of running parameters. I solve those equations and obtain the renormalised parameters in the baryogenesis condition using the perturbation in Yukawa couplings. Furthermore, Reliability of such perturbative expansion is discussed.-
dc.subjectThermal inflation▼abaryogenesis▼aaffleck-Dine mechanism▼aminimal supersymmetric stan- dard model▼aperturbation-
dc.subject열적 초팽창▼a중입자 생성▼aAffleck-Dine mechanism▼a최소 초대칭 표준 모형▼a섭동 전개-
dc.titleField-dependent renormalisation of baryogenesis condition in thermal inflation model = 열적 초팽창 모델에서 바리온생성 조건의 장 의존 재규격화-
dc.description.department한국과학기술원 :물리학과,-
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