Zobrazeno 1 - 10
of 319
pro vyhledávání: '"Dubnicka, S"'
It is demonstrated how an utilization of all existing experimental information on electric and magnetic nucleon form factors, to be described by the Unitary and Analytic (U\&A) nucleon electromagnetic structure model in space-like and time-like regio
Externí odkaz:
http://arxiv.org/abs/1601.06190
Publikováno v:
Phys. Rev. D 90, 114003 (2014)
The pion scalar form factor along with all existing S-wave iso-scalar $\pi\pi$-scattering phase shift data in the elastic region up to $1 {\rm GeV}^2$ are applied for a determination of the $f_0(500)$ and $f_0(980)$ meson parameters $m_{f_0(500)}=(36
Externí odkaz:
http://arxiv.org/abs/1403.2244
Publikováno v:
Phys.Rev.C83:028201,2011
New precise experimental information on $\sigma_{tot}(e^+e^- \to \pi^+ \pi^-)$ is transferred into the space-like region, by taking advantage of the analyticity. As a result a rigorous pion electromagnetic form factor behavior is obtained. The latter
Externí odkaz:
http://arxiv.org/abs/1102.3122
By means of the universal unitary and analytic model of electromagnetic structure of hadrons the two-photon decay rates of P=pi^0, eta, eta' mesons are determined in an alternative way from data on their transition form factors.
Comment: 7 pages
Comment: 7 pages
Externí odkaz:
http://arxiv.org/abs/1009.1222
Autor:
Dubnicka, S., Dubnickova, A. Z.
Publikováno v:
Acta Phys.Slov.60:1-153,2010
The utility of an application of the analyticity in a phenomenology of electro-weak structure of hadrons is demonstrated in a number of obtained new and experimentally verifiable results. With this aim first the problem of an inconsistency of the asy
Externí odkaz:
http://arxiv.org/abs/1008.4490
Publikováno v:
Nucl.Phys.Proc.Suppl.198:186-189,2010
New very precise KLOE data on $\m{e}^+\m{e}^-\to\pi^+\pi^-$ obtained by radiative return method in Frascati are unified with corrected CMD-2 and SND Novosibirsk $\m{e}^+\m{e}^-\to\pi^+\pi^-$ data and supplemented below and beyond by older data in ord
Externí odkaz:
http://arxiv.org/abs/0910.2123
Publikováno v:
Nucl.Phys.Proc.Suppl.198:194-198,2010
We use the unitary and analytic model of the pion electromagnetic form factor in order to evaluate in the lowest order the $e^{+}e^{-}\to\pi^{+}\pi^{-}$ contribution into the muon magnetic anomaly. We demonstrate, that this technique enables us to re
Externí odkaz:
http://arxiv.org/abs/0910.2006
Publikováno v:
Phys.Rev.C81:054001,2010
We discuss the elastic ed scattering beyond Born approximation. It is shown that the reaction amplitude contains six generalized form factors, but only three linearly independent combinations of them (we call them generalized charge, quadrupole and m
Externí odkaz:
http://arxiv.org/abs/0907.0119
Autor:
Dubnickova, A. Z., Dubnicka, S.
By means of the 10-resonance unitary and analytic model of nucleon electromagnetic structure it is demonstrated that the JLab proton polarization data on the ratio $\mu_p G_{Ep}(Q^2)/G_{Mp}(Q^2)$ are consistent with all form factor properties, howeve
Externí odkaz:
http://arxiv.org/abs/0708.0162
Considering very high energy peripheral electron-hadron scattering with a production of hadronic state X moving closely to the direction of initial hadron the Weizs\"acker-Williams like expression, relating the difference of q^2-dependent differentia
Externí odkaz:
http://arxiv.org/abs/0707.4589