A general formula by <i>LDL</i>T decomposition for the type-I seesaw mechanism

DOI PDF PDF 参考文献41件 オープンアクセス
  • Masaki J S Yang
    Department of Physics, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan

説明

<jats:title>Abstract</jats:title> <jats:p>By performing an approximate spectral decomposition on the inverse mass matrix of the right-handed neutrinos M−1, we obtain a basis-independent formula for the type-I seesaw mechanism. Mathematically, it is based on the generalized Cholesky (or LDLT) decomposition of the symmetric matrix M−1 = LDLT, with a diagonal matrix D and a lower unitriangular matrix L. Since the diagonalization of L can be inverted without solving cubic equations, the formula will be useful in investigating the general properties of the mechanism, such as flavor symmetries, generalized CP symmetries, and fine-tunings.</jats:p>

収録刊行物

参考文献 (41)*注記

もっと見る

関連プロジェクト

もっと見る

問題の指摘

ページトップへ