Results 241 to 250 of about 145,714 (284)
Some of the next articles are maybe not open access.
Possible Schemes for Global Symmetry
Journal of Mathematical Physics, 1963An attempt was made to determine all possible schemes for global symmetry as representations of groups. All possible schemes which correspond to connected groups were found, but the conclusions about nonconnected groups are incomplete. Physical interpretation of the schemes is discussed, and a detailed summary of group-theoretic methods is included.
Speiser, D., Tarski, J.
openaire +2 more sources
Il Nuovo Cimento, 1960
The Feynman, Gell-Mann model of weak interactions is modified by the introduction of neutral « currents », both of the strangenesss preserving (J) and strangeness changing (S) variety. The various currents, neutral and charged, are chosen and coupled in such a manner as to guarantee the |ΔT|=1/2 selection rule.
openaire +1 more source
The Feynman, Gell-Mann model of weak interactions is modified by the introduction of neutral « currents », both of the strangenesss preserving (J) and strangeness changing (S) variety. The various currents, neutral and charged, are chosen and coupled in such a manner as to guarantee the |ΔT|=1/2 selection rule.
openaire +1 more source
Global-symmetry evolution in axion cosmologies
Physical Review D, 1985Cosmological constraints on invisible axion models require a mass scale far below the grand unification scale. Such a hierarchy can lead to an evolution of global symmetries accompanied by a complicated axion domain-wall problem. We show that if this problem is solved at the highest mass scale in the theory, then it does not reoccur at lower mass ...
, Holman, , Kephart
openaire +2 more sources
Global Symmetry, Local Symmetry, and the Lattice
2010Confinement in non-abelian gauge theory involves the idea that the vacuum state is disordered at large scales; our best evidence that this is true comes from Monte Carlo simulations of lattice gauge theories. So to begin with, I need to explain what is meant by a disordered state, a lattice gauge theory, a Monte Carlo simulation.
openaire +1 more source
Spontaneous Global Symmetry Breaking
1999The preceding chapter has shown how the observed partial conservation of the axial isospin current can be understood as the consequence of the approximate chiral symmetry of the strong interaction Lagrangian. A problem that has been ignored so far, however, is the nonzero mass of the nucleons so that their Lagrangian is at first sight clearly not ...
openaire +1 more source
2014
We discuss global non-compact symmetries in supergravities. When a supergravity contains scalar fields, it has a global non-compact symmetry \(G\). The scalar fields are described by a non-linear sigma model for a coset space \(G/H\), where \(H\) is a maximal compact subgroup of \(G\). In even dimensional spacetime the non-compact symmetry is sometimes
openaire +1 more source
We discuss global non-compact symmetries in supergravities. When a supergravity contains scalar fields, it has a global non-compact symmetry \(G\). The scalar fields are described by a non-linear sigma model for a coset space \(G/H\), where \(H\) is a maximal compact subgroup of \(G\). In even dimensional spacetime the non-compact symmetry is sometimes
openaire +1 more source
Metabolomics in cancer research and emerging applications in clinical oncology
Ca-A Cancer Journal for Clinicians, 2021Daniel R Schmidt +2 more
exaly