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

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The 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.
Advisors
Ewan D. Stewartresearcher스튜어트researcher
Description
한국과학기술원 :물리학과,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 2018.8,[ii, 21 p. :]

Keywords

Thermal inflation▼abaryogenesis▼aaffleck-Dine mechanism▼aminimal supersymmetric stan- dard model▼aperturbation; 열적 초팽창▼a중입자 생성▼aAffleck-Dine mechanism▼a최소 초대칭 표준 모형▼a섭동 전개

URI
http://hdl.handle.net/10203/266095
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=828480&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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