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Mixing angles, B-meson life-time in the six quark model based on S0(10) × U(1)PQ
Abstract : We show that a recently proposed multigenerational, grand unified model with three parameters (top-quark mass and two phases of Higgs vacuum expectation values) yields results in good agreement with the most recent phenomenological limits…
Charge conjugation : a Contribution to the history of this internal quantum number of particle physics
Conference given at the First International Meeting on the History of Scientific Ideas Symmetrie in Phyiscs, Sant Feliu de Guixols, Catalonia, Spain, September 20-26, 1983
Une Nouvelle et abondante source d'énergie ?
Article demandé pour le volume jubilaire du cinquantenaire de la découverte de la radioactivité articficielle
Renormalization group fixed points of general n-vector models
Abstract : We make a general study of symmetry and stability of the fixed points of the quartic Hamiltonian
of an n-component field (or order parameter} for n&4. Simple proofs of known results are given.
Among new results, we shou that when it…
of an n-component field (or order parameter} for n&4. Simple proofs of known results are given.
Among new results, we shou that when it…
Zeros of covariant vector fields for the point groups : Invariant formulation
Abstract. 2014 All finite as well as infinite (matrix) point subgroups of full orthogonal groups in two and three dimensions
are considered. For each point group a polynomial integrity basis for invariants and the basic polynomial vector fields are…
are considered. For each point group a polynomial integrity basis for invariants and the basic polynomial vector fields are…
Landau theory of second order phase transitions and invariant theory
Abstract : We give some basic concepts on group actions and theorems in invariant theory useful for the contrcution and the study of Landau polynomials. We apply them to the study of the isotropy groups of extrema of Landau polynomials. We explain…
Some Use of metabelian groups in physics
Abstract : Metabelian groups are those whose structure differ the least from Abelian groups. We explain the classification of finite metabelian groups and give some examples of physics problems where they play an important role.
There is no Tight continuous immersion of the Klein bottle into R3
The imbedding radius ?f and the roation number ? of an immersion of a Cech-circle into R2 are used to prove taht there is no tight immersion f of the Klein bottle into R3
Nicolaas H. Kuiper jouant du piano accompagné par Graeme Bailey au violoncelle pendant la garden party du 03 juin 1983
Directeur de l'IHES de 1971 à 1985
