منابع مشابه
What Happens If an Unbroken Flavor Symmetry Exists ? Yoshio
Without assuming any specific flavor symmetry and/or any specific mass matrix forms, it is demonstrated that if a flavor symmetry (a discrete symmetry, a U(1) symmetry, and so on) exists, we cannot obtain the CKM quark mixing matrix V and the MNS lepton mixing matrix U except for those between two families for the case with the completely undegenerated fermion masses, so that we can never give ...
متن کاملA 4 Symmetry and Lepton Masses and Mixing Yoshio
Stimulated by Ma’s idea which explains the tribimaximal neutrino mixing by assuming an A4 flavor symmetry, a lepton mass matrix model is investigated. A Frogatt-Nielsen type model is assumed, and the flavor structures of the masses and mixing are caused by the VEVs of SU(2)L-singlet scalars φ u i and φ i (i = 1, 2, 3), which are assigned to 3 and (1,1,1) of A4, respectively.
متن کاملUniversal Seesaw Mass Matrix Model with an S 3 Symmetry Yoshio
Stimulated by the phenomenological success of the universal seesaw mass matrix model, where the mass terms for quarks and leptons fi (i = 1, 2, 3) and hypothetical super-heavy fermions Fi are given by fLmLFR +FLmRfR + FLMFFR + h.c. and the form of MF is democratic on the bases on which mL and mR are diagonal, the following model is discussed: The mass terms MF are invariant under the permutatio...
متن کاملThe Watanabe heritable hyperlipidemic (WHHL) rabbit, its characteristics and history of development: a tribute to the late Dr. Yoshio Watanabe.
Professor Yoshio Watanabe, who developed the WHHL rabbit, died on December 13, 2008. He had contributed to studies of lipoprotein metabolism and atherosclerosis, and to the development of hypolipidemic and/or anti-atherosclerotic compounds. WHHL rabbits show hypercholesterolemia due to deficiency of LDL receptors, and very similar lipoprotein metabolism to humans. The incidences of coronary ath...
متن کاملA new species of terrestrial planarian of the genus Notogynaphallia Ogren & Kawakatsu (Platyhelminthes, Tricladida, Terricola) from south Brazil and some comments on the genus
A new species of Notogynaphallia Ogren & Kawakatsu, 1990, from Southern Brazil, is described. Notogynaphallia ceciliae sp. nov. has an elongated body with parallel margins and five dorsal dark longitudinal stripes on a yellowish ground. It possess branched efferent ducts, each branch opening separately into the anterior and median thirds of the long prostatic vesicle. Comparative commentaries o...
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ژورنال
عنوان ژورنال: The Journal of Asian Studies
سال: 1984
ISSN: 0021-9118,1752-0401
DOI: 10.1017/s0021911800068601