Cosmological constraints on the electroweak models = 약전모형들의 우주론적 제약

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The dynamics and cosmological roles of the phase wave occuring at the cosmological phase transition are investigated to constrain the electroweak models. We calculate the reflection rate of fermions at the phase wave by solving the Dirac equation with the wave background in order to investigate the damping and the velocity of the wave. It is shown that the phase wave from global or local symmetry breaking could be cosmologically harmful. This leads to the conclusion that the theory with degenerate vacuum such as minimal standard model is unpreferable than the model such as 2HDM with nondegenerate vacuum. The galaxy halo model with the PNGB from this nondegenerate vacuum is also investigated.
Advisors
Koh, In-Gyuresearcher고인규researcher
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
1997
Identifier
112572/325007 / 000895388
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 물리학과, 1997.2, [ iii, 66 p. ]

Keywords

암흑물질; 약전모형들; 우주론; 위상파; 대칭성 붕괴; Dark matter; Electroweak models; Cosmology; Phase wave; Symmetry breaking

URI
http://hdl.handle.net/10203/47553
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=112572&flag=dissertation
Appears in Collection
PH-Theses_Ph.D.(박사논문)
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