Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Smejkal, J."'
Several theoretical groups describe the antikaon-nucleon interaction at low energies within approaches based on the chiral SU(3) dynamics and including next-to-leading order contributions. We present a comparative analysis of the pertinent models and
Externí odkaz:
http://arxiv.org/abs/1603.02531
Autor:
Cieply, A., Smejkal, J.
We analyze the $\eta N$ interaction using a coupled channel separable potential model that implements the chiral symmetry. The model predicts an $\eta N$ stattering length $\Re a_{\eta N} \approx 0.7$ fm and in-medium subthreshold attraction most lik
Externí odkaz:
http://arxiv.org/abs/1308.4300
Publikováno v:
In Journal of Energy Storage February 2019 21:295-300
Autor:
Cieply, A., Smejkal, J.
A new fit of a chirally motivated coupled-channels model for meson-baryon interactions is presented including the recent SIDDHARTA data on the 1s level characteristics of kaonic hydrogen. The kaon-nucleon amplitudes generated by the model are fully c
Externí odkaz:
http://arxiv.org/abs/1112.0917
Autor:
Cieply, A., Smejkal, J.
We use chirally motivated effective meson-baryon potentials to describe the low energy $\bar{K}N$ data including the characteristics of kaonic hydrogen. Our results are examined in comparison with other approaches based on the unitarity and dispersio
Externí odkaz:
http://arxiv.org/abs/1011.2031
Publikováno v:
Nucl.Phys.A837:110-144,2010
Model dependence of the capture rates of the negative muon capture in deuterium is studied starting from potential models and the weak two-body meson exchange currents constructed in the tree approximation and also from an effective field theory. The
Externí odkaz:
http://arxiv.org/abs/0912.1989
Autor:
Cieply, A., Smejkal, J.
Publikováno v:
Eur.Phys.J.A43:191-208,2010
The effective separable meson-baryon potentials are constructed to match the equivalent chiral amplitudes up to the second order in external meson momenta. We fit the model parameters (low energy constants) to the threshold and low energy $K^{-}p$ da
Externí odkaz:
http://arxiv.org/abs/0910.1822
Autor:
Cieply, A., Smejkal, J.
Publikováno v:
Eur.Phys.J.A34:237-241,2007
We present an exact solution to the $K^{-}$-proton bound state problem formulated in the momentum space. The 1s level characteristics of the kaonic hydrogen are computed simultaneously with the available low energy $K^{-}p$ data. In the strong intera
Externí odkaz:
http://arxiv.org/abs/0711.4928
Autor:
Cieply, A., Smejkal, J.
We present an exact solution to the $K^{-}$-proton bound state problem formulated in the momentum space. The 1s level characteristics of the kaonic hydrogen are described together with the available low energy $\bar{K}N$ data.
Comment: 4 pages,
Comment: 4 pages,
Externí odkaz:
http://arxiv.org/abs/0710.3602
Autor:
Jakubsky, V., Smejkal, J.
Publikováno v:
Czech.J.Phys.56:985,2006
We implement recent results of pseudo-Hermitian quantum mechanics to description of relativistic massive particle with spin-one. We derive a one-parameter family of Lorentz invariant positive-definite scalar products on the space of solutions of Proc
Externí odkaz:
http://arxiv.org/abs/hep-th/0610290