Neutrinos and its masses = 중성미자의 질량에 관한 고찰

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In the standard model, neutrinos can be described by $SU(2)_L×U(1)_Y$ gauge theory and they are introduced as truly massless and neutral particles. But, we faced to some problems, for example solar neutrino puzzle, and realized that these problems can be solved by neutrino oscillation. Neutrino oscillation means that neutrinos are massive, but the standard model does not allow it. So, many people try to describe the existence of neutrino mass until now. The difference between neutrino mass eigenstate and flavor eigenstate causes the oscillation. As an electron neutrino, muon neutrino or tau neutrion propagates, it can be converted to each other. There is an MSW effect, which has a resonance region, for neutrino oscillation in matter. I examine some methods to describe massive neutrinos as Dirac or Majorana fields. And I applied some methods, Higgs mechanism or Yukawa coupling which generates mass term of several fundamental particles, to the neutrinos. And look around Dirac, Majorana and Dirac-Majorana neutrino mass matrices. Finally, review the solar neutrino, atmospheric neutrino and LSND experiment result.
Advisors
Ko, Pyung-Won고병원
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
2002
Identifier
177019/325007 / 000993375
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 2002.8, [ [ii], 48 p. ; ]

Keywords

중성미자; neutrino

URI
http://hdl.handle.net/10203/48612
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=177019&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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