Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ryszard Raczka"'
Publikováno v:
Foundations of Physics. 25:833-849
A theoretical analysis of the concept of lifetime and mean life of unstable elementary particles is presented. New analytic formulas for lifetime and mean life as a function of decay width Γ and the mass of unstable particle are derived for Breit-Wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3967857989e6dd05e90a442ebf7283d3
https://doi.org/10.1007/bf02080566
https://doi.org/10.1007/bf02080566
Publikováno v:
Foundations of Physics. 24:1461-1494
The mathematical and physical aspects of the conformal symmetry of space-time and of physical laws are analyzed. In particular, the group classification of conformally flat space-times, the conformal compactifications of space-time, and the problem o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e6ff28550ff7657804482598d0f506d
https://doi.org/10.1007/bf02054779
https://doi.org/10.1007/bf02054779
Autor:
Ryszard Raczka, Marek Pawlowski
Publikováno v:
Foundations of Physics. 24:1305-1327
A Higgsless model for strong, electro-weak and gravitational interactions is proposed. This model is based on the local symmetry group SU(3)xSU(2)xU(1)xC where C is the local conformal symmetry group. The natural minimal conformally invariant form of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42da70157fc484a30d1fdcf13d8bf659
https://doi.org/10.1007/bf02148570
https://doi.org/10.1007/bf02148570
Autor:
Ryszard Raczka, Paolo Budinich
Publikováno v:
Foundations of Physics. 23:599-615
We consider the global structure of momentum space Π3, 1 in a field theory which is covariant with respect to the action of global conformal group G. We show that Π3, 1 is a homogeneous space for G which coincides with (S3×S1)/Z2 compact space. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89419b3bd5471c3e9fa879e6bf94fc6d
https://doi.org/10.1007/bf01883768
https://doi.org/10.1007/bf01883768
Autor:
Paolo Budinich, Ryszard Raczka
Publikováno v:
Foundations of Physics. 23:225-237
A theoretical interpretation of the observed periodicity of large-scale (∼128 Mpc) correlations of galaxies is proposed as due to eigenvibrations of the closed expanding universe. Eigensolutions of the equations of motion for a scalar field in an i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88ee262279b0819ff05224d5d8177a5e
https://doi.org/10.1007/bf01883626
https://doi.org/10.1007/bf01883626
Autor:
Ryszard Raczka, P. Furlan
Publikováno v:
Physics Letters B. 124:527-530
A scalar-pseudoscalar four-Fermi quantum field model for a doublet of fermion is considered. It is shown by a partly nonperturbative analysis that excited states of collective bosons do exist and form finite approximately linear trajectories M n 2 (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f2743b233bb0b254ae30dd2d07b25fc
https://doi.org/10.1016/0370-2693(83)91567-8
https://doi.org/10.1016/0370-2693(83)91567-8
Autor:
Ryszard Raczka, Moshé Flato
Publikováno v:
Physics Letters B. 208:110-114
A standard model for weak and electromagnetic interactions with the inclusion of a partially quantized gravitational field g ={ g αβ} is considered. The imposition of the causality condition on g αβ reduces them to the form g αβ (x)= g W(x)g α
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a5e667a427d9b979521d3b3d409ca03
https://doi.org/10.1016/0370-2693(88)91213-0
https://doi.org/10.1016/0370-2693(88)91213-0
Autor:
Joel S Feldman, Ryszard Ra̧czka
Publikováno v:
Annals of Physics. 108:212-229
We derive the relativistic field equation of the lambdaPhi/sub 3//sup 4/ quantum field theory using the techniques of Euclidean quantum field theory. Next we derive the relativistic field equation using the techniques of renormalized perturbation the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adea2f33e796173f8d186ffac27d2653
https://doi.org/10.1016/0003-4916(77)90357-8
https://doi.org/10.1016/0003-4916(77)90357-8
Autor:
Ryszard Raczka
Publikováno v:
Letters in Mathematical Physics. 5:263-275
An idea that the experimentally-observed meson resonances are excited states of fundamental mesons is presented, and is tested for several models of quantum field theory. It is shown that in the considered models, the excited states of mesons do exis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a589c3ccf2f319df682efb1a89fd17b
https://doi.org/10.1007/bf00401474
https://doi.org/10.1007/bf00401474
Autor:
Ryszard Ra̧czka, Piotr A. Raczka
Publikováno v:
Physical Review D. 40:878-882
The problem of renormalization scheme and gauge dependence of perturbative QCD predictions in the momentum subtraction schemes is considered. A renormalization-group-improved expression for the QCD contribution to the /sigma//sub /ital T//(e/sup +/e/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d4dfd7895d115e7e4ec60e17850834f
https://doi.org/10.1103/physrevd.40.878
https://doi.org/10.1103/physrevd.40.878