Age, Biography and Wiki
Yoshio Koide was born on 16 May, 1942 in Japan, is a Japanese theoretical physicist. Discover Yoshio Koide's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 81 years old?
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81 years old |
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Taurus |
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16 May 1942 |
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16 May |
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Japan
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We recommend you to check the complete list of Famous People born on 16 May.
He is a member of famous with the age 81 years old group.
Yoshio Koide Height, Weight & Measurements
At 81 years old, Yoshio Koide height not available right now. We will update Yoshio Koide's Height, weight, Body Measurements, Eye Color, Hair Color, Shoe & Dress size soon as possible.
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Dating & Relationship status
He is currently single. He is not dating anyone. We don't have much information about He's past relationship and any previous engaged. According to our Database, He has no children.
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Yoshio Koide Net Worth
His net worth has been growing significantly in 2023-2024. So, how much is Yoshio Koide worth at the age of 81 years old? Yoshio Koide’s income source is mostly from being a successful . He is from Japan. We have estimated Yoshio Koide's net worth, money, salary, income, and assets.
Net Worth in 2024 |
$1 Million - $5 Million |
Salary in 2024 |
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Pending |
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Under Review |
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Timeline
Yoshio Koide (小出 義夫) is a Japanese theoretical physicist working in particle physics.
Koide is known for his eponymous Koide formula, which some physicists think has great importance but which other physicists contend is merely a numerical coincidence.
Koide earned in 1967 a B.Sc.
with major in physics and in 1967 a M.Sc.
in Theoretical Elementary Particle Physics from Kanazawa University.
In 1970, he received his Doctor of Science degree from Hiroshima University with a thesis “On the Two-Body Bound State Problem of Dirac Particles”.
After working as a postdoc in the physics department of Hiroshima University and then a postdoc in the applied mathematics department of Osaka University, he became, from 1972 to 1973, a Lecturer in the School of Science and Engineering, Kinki University, Osaka.
Koide was Assistant Professor (1973-1977) then Associate Professor (1977-1987) of General Education, Shizuoka Women's University, Shizuoka.
He published the famous Koide formula in 1982 with a different presentation in 1983.
Originally, Koide's proposed charged lepton mass formula was based on a composite model of quarks and leptons.
In 1986 he was a visiting professor at the University of Maryland and in 2002 a visiting researcher at CERN.
From April 1987 to March 2007 he was a Professor of Physics at University of Shizuoka, Shizuoka and then retired as professor emeritus.
In a 1990 paper, from the standpoint that the charged leptons are elementary, by introducing a scalar boson with (octet + singlet) of a family symmetry U(3), Koide re-derived the charged lepton mass formula from minimizing conditions for the scalar potential.
Koide was from April 2007 to March 2009, a guest professor at Research Institute for Higher Education and Practice, Osaka University, then from April 2009 to March 2011 a guest professor and from April 2011 a guest researcher at Osaka University, and from April 2010 a professor, Department of Maskawa Institute, Kyoto Sangyo University, Kyoto.
In the composite model of mesons, Koide's thesis demonstrated that a mass m of a composite particle which consists of the rest masses m_1,m_2 cannot be lighter than except for the case m_1 = m_2 when JP is not = 0-.
This offered a severe problem for the quark model.
(Koide’s work was done before the establishment of QCD.)
Katuya and Koide predicted that lifetimes of D± and D0 should be considerably different from what was at that time the conventional anticipation tau(D±)= tau(D0).
Their prediction of these lifetimes was the first in the world prior to the experimental observation.
In 2009, he related the neutrino mixing matrix to the up-quark mass matrix.
Koide and Hiroyuki Nishiura have published articles on a quark and lepton mass matrix model and a neutrino mass matrix model.