Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Stanisław Tatur"'
Autor:
Jan Bartelski, Stanisław Tatur
Publikováno v:
Zeitschrift f�r Physik C Particles and Fields. 71:595-599
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3959b20e88d6dbcbe5f0bec7167d479
https://doi.org/10.1007/s002880050207
https://doi.org/10.1007/s002880050207
Publikováno v:
Physical Review D. 49:1655-1658
A simple model of the neutrino mixing is considered, which contains only one right-handed neutrino field, coupled via the mass term to the three usual left-handed fields. This is a simplest model that allows for three-flavour neutrino oscillations. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ab134905fdaed3ac13a79351fb69b3a
https://doi.org/10.1103/physrevd.49.1655
https://doi.org/10.1103/physrevd.49.1655
Autor:
Jan Bartelski, Stanisław Tatur
Publikováno v:
Physics Letters B. 305:281-284
We discuss the influence of glueball coupling to nucleons on the weak axial-vector coupling constants including singlet channel. We consider a possibility of introduction of constituent gluon contribution to the proton spin. The estimated value for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8fb9a2df3cc184fabd169e553626277
https://doi.org/10.1016/0370-2693(93)90119-3
https://doi.org/10.1016/0370-2693(93)90119-3
Autor:
Jan Bartelski, Stanisław Tatur
Publikováno v:
Physics Letters B. 289:429-434
We consider the mixing of η-η'-ι pseudoscalar mesons, assuming that the last one is mainly a glueball (we identify ι with η(1490)). Starting from a mass matrix given by the quark model, with chiral corrections taken into account, and experimenta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::add46b433f6eac6600cb074a07bd8269
https://doi.org/10.1016/0370-2693(92)91244-4
https://doi.org/10.1016/0370-2693(92)91244-4
Autor:
Jan Bartelski, Stanisław Tatur
Publikováno v:
Physics Letters B, Vol 265, Iss 1, Pp 192-196 (1991)
Goldberger-Treiman relations for the third, eight and singlet (in a generalized version) axial-vector currents are used to estimate the corresponding weak coupling constants. We take into account SU(3) and isospin mass breaking, as well as π-η-η
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a9b0f96fa3a3aa308e3cda299b6e31e
https://doi.org/10.1016/0370-2693(91)90039-s
https://doi.org/10.1016/0370-2693(91)90039-s
Autor:
Jan Bartelski, Stanisław Tatur
Publikováno v:
Physical Review D. 74
We assume that all quark and lepton $3 \times 3$ mass matrices which appear in the standard model lagrangian (after spontaneous symmetry breaking) with neutrinos treated as Dirac patricles have the triangular form. Such matrices have not only less no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9ff1a822cf277c34204da7f1474e099
https://doi.org/10.1103/physrevd.74.013007
https://doi.org/10.1103/physrevd.74.013007
Autor:
Jan Bartelski, Stanisław Tatur
Using generalized Sehgal equations for magnetic moments of baryon octet and taking into account $\Sigma^{0}-\Lambda$ mixing and two particle corrections to independent quark contributions we obtain very good fit using experimental values for errors o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba89784d6a7e57aa8bd9e6b2c35c875f
Autor:
Jan Bartelski, Stanisław Tatur
In order to obtain polarised parton densities we have made next to leading order QCD fit using experimental data on deep inelastic structure functions on nucleons. This fit is compared with the updated fit to coresponding spin asymmetries. We get ver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dc614e178854d2c1eae7eb56e1d14d2
http://arxiv.org/abs/hep-ph/0107202
http://arxiv.org/abs/hep-ph/0107202
Autor:
Stanisław Tatur, Jan Bartelski
We present a fit to spin asymmetries which gives polarized quark distributions. These functions are closely related to the ones given by the newest Martin, Roberts and Stirling fit for unpolarized structure functions. The integrals of polarized distr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56753dc6d1c937ab7c62580fb540939f
http://arxiv.org/abs/hep-ph/9502271
http://arxiv.org/abs/hep-ph/9502271
Autor:
Stanisław Tatur, H. Genz
Publikováno v:
Physical review. D, Particles and fields. 50(5)
In a model of isospin symmetry breaking we obtain the ($e^{-} e^{+} \rightarrow \pi^{-} \pi^{+}$) amplitude $Q$ and the isospin $I=0$ and $I=1$ relative phase $\psi$ at the $\phi (1020)$ resonance in aproximate agreement with experiment. The model pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f11c7ccd326258afaf41f7d88955d109
https://pubmed.ncbi.nlm.nih.gov/10017959
https://pubmed.ncbi.nlm.nih.gov/10017959