Fine-Tuning Problem in a Left-Right Symmetric Model and Sogami's Generalized Covariant Derivative Method : Particles and Fields

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概要

• 論文の詳細を見る

• We study Sogami's generalized covariant derivative method for an SU(2)_L × SU(2)_R × U(1)_<B-L> × SU(3)_c model that contains bi-doublet and triplet Higgs bosons. In particular, a detailed study is made on the minimization conditions of the Higgs potential. It is known that a minimization condition and certain phenomenology for an extra gauge boson mass yield a restriction on potential parameters, which require fine-tuning. We show that the restriction can be reduced to a condition of Yukawa coupling constants, giving a heavy mass of the right-handed tau neutrino in our model. We also discuss the consistency among parameter restrictions of our model by taking the phenomenology of the Higgs boson masses into account.

• 理論物理学刊行会の論文
• 1997-07-25

著者

• UMEZAWA Eizou

  School of Health Sciences, Fujita Health University

• Umezawa Eizou

  Department Of Physics College Of Science And Technology Nihon University

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