#### B →$_{tv}X$ decays in a two higgs doublet model = 2개의 힉스 더블릿을 포함한 모델에서의 B → $_{tv}X$ 붕괴

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We have first reviewed the HQET and spin-flavor symmetry, which are important systematic tools in studying the properties of the heavy hadrons. With the HQET and spin-flavor symmetry, we calculated the non-perturbative contributions of the inclusive semileptonic B $\rightarrow$ $\tau\nu$X decays within two Higgs doublet model. We obtained the $\tau$ spectrum and total decay rate. Further-more comparing our theoretical results with the experimental B $\rightarrow$ $e\nu$ branching ratio, we could find the B $\rightarrow$ $\tau\nu$ X branching ratio. It gives a refined constraint of the value tan $\beta$ in two Hidds doublet model.
Kim, Jae-Kwan김재관
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
1995
Identifier
98672/325007 / 000933387
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 1995.2, [ [iii], 38 p. ]

URI
http://hdl.handle.net/10203/48368