서지주요정보
(The) structures of SU(2)×U(1) gauge model and the empirical constraints
서명 / 저자 (The) structures of SU(2)×U(1) gauge model and the empirical constraints / 한명학.
저자명 한명학 ; Harn, Myung-Hark
발행사항 [서울 : 한국과학기술원, 1978].
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등록번호

4000476

소장위치/청구기호

학술문화관(문화관) 보존서고

MAP 7811

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초록정보

The experimental fact, $\sigma_{N.C}^{\nu{N}} > \sigma_{N.C}^{\bar{\nu} N}$ is observed from neutrino (antineutrino) - induced charged - and neutral - current inclusive cross sections data on an isospin-O-nucleon. We consider $\sigma_{N.C.}^{\nu{N}} > \sigma_{N.C.}^{\bar{\nu} N}$ as a empirical constraint for SU(2) $\times$ U(1) gauge models and study the possible structures of this models. It is shown that the five classes of models (0,0), (1,0), (0,1), (-1,0), and (0, -1) where $\alpha$ and $\beta$ of ($\alpha, \beta$) are the third components of weak isospin of right-handed-up and down quarks respectively, are consistent with the neutral current constraint and for each class the upper bound of $\sin^2 \theta_W$, the Weinberg angle, has been determined. By requiring some other useful theoretical constraints, we have found that two gauge models, model A ((1,0) type) and model B ((0, 1) type) are not inconsistent with constraints imposed. The energy dependence of both neutrino(antineutrino) - induced charged - and neutral - current processes in two models is investigated and then the model A is turned out to be much acceptable.

서지기타정보

서지기타정보
청구기호 {MAP 7811
형태사항 [iii], 103 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Myung-Hark Harn
지도교수의 한글표기 : 조병하
지도교수의 영문표기 : Byung-Ha Cho
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 92-94
주제 Neutrinos.
Quarks.
SU군. --과학기술용어시소러스
게이지 이론. --과학기술용어시소러스
뉴트리노. --과학기술용어시소러스
Gauge fields (Physics)
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