نتایج جستجو برای: energy elementary particle interaction
تعداد نتایج: 1363230 فیلتر نتایج به سال:
Contemporary theories of antimatter have a number of insufficiencies which stimulated the recent construction of the new isodual theory based on a certain antiisomorphic map of all (classical and quantum) formulations of matter called isoduality. In this note we show that the isodual theory predicts that antimatter emits a new light, called isodual light, which can be distinguished from the ord...
The physics of the strong interactions always has been tightly connected to the study of nucleons at shorter and shorter distances. The measurement of the anomalous magnetic moments of the proton and neutron in 1933 and 1939 made clear that nucleons are no elementary particles. During the 1950ies the Hofstadter experiments revealed the charge distributions inside nucleons at scales Q ≃ 0.5 ·M N...
We explain the origin of the difficulties that appear in a straightforward application of the QRPA in 12 C, and we demonstrate that it is imperative to use the projected QRPA (PQRPA). Satisfactory results, not only for the weak processes among the ground states of the triad { 12 B, 12 C, 12 N }, but also for the inclusive ones are obtained. We sketch as well a new formalism for the neutrino-nuc...
The standard model of the early universe is extraordinarily simple: it just assumes a globally isotropic and uniform universe. In the simplest version there is no structure of any kind on scales larger than individual elementary particles; indeed the contents are determined by “just physics”— global expansion governed by relativity, particle interactions governed by the Standard Model, and dist...
We explain the origin of the difficulties that appear in a straightforward application of the QRPA in 12 C, and we demonstrate that it is imperative to use the projected QRPA (PQRPA). Satisfactory results, not only for the weak processes among the ground states of the triad { 12 B, 12 C, 12 N }, but also for the inclusive ones are obtained. We sketch as well a new formalism for the neutrino-nuc...
We show that the free propagation and interactions of all fundamental particle fields can be derived from arithmetic summations over a suitably parametrized null-cone. Our approach represents a considerable simplification of the path integral formalism and leads to essentially identical results as those obtained from conventional procedures, but without using i) differential operators, ii) the ...
In 1969, Murray Gell-Mann won the nobel prize in physics “for his contributions and discoveries concerning the classification of elementary particles and their interactions.” He is the scientist who first used the word quark, and he was the first to describe the SU3(C) flavor symmetry of the hadrons. By organizing the particles according to the root system of the lie algebra su3(C) associated t...
Various theories of spinning particles are interpreted as realizing elements of an underlying geometric theory. Classical particles are described by trajectories on the Poincaré group. Upon quantization an eleven-dimensional Kaluza-Klein type theory is obtained which incorporates spin and isospin in a local SL(2, C) × U(1) × SU(2) theory with broken U(1)× SU(2) part. The theories that describe ...
A fundamental problem in quantum theory is to establish a connection between its local description (quantum field theory) and measurable quantities (particle masses, scattering amplitudes). In elementary particle physics one relies mostly on approximation techniques due to the non-integrable structure of the interactions. In order to gain a deeper understanding of quantum theory in general thes...
With the standard fibre being a coset manifold, the transformation of a connection form in a fibre bundle under the action of the isometry group includes a dependence on the fibre coordinate. Elimination of the fibre coordinate from the transformation rule implies that the standard fibre is a Lie group and that the bundle is a principal bundle. The dependence on the fibre coordinate is consider...
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