Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Goeke Klaus"'
Autor:
Polyakov Maxim V., Goeke Klaus
Publikováno v:
EPJ Web of Conferences, Vol 134, p 02004 (2017)
We study the implications of the flavour SU(3) symmetry for various interpretations (existence of a narrow anti-decuplet resonance, interference of known resonances and a cusp effect) of the neutron anomaly in γN → ηN cross section. We show that
Externí odkaz:
https://doaj.org/article/3c18921d8799431d8d4857742a2cd192
Publikováno v:
Acta Phys.Polon.B42:61-83,2011
We propose a scenario in which Roper octet can mix with a putative antidecuplet of exotic baryons and predict the properties of its strange members. We show that 1795 MeV < M_Sigma_{\bar{10}} <1830 MeV and 1900 MeV < M_Xi_{\bar{10}}<1970 MeV. We also
Externí odkaz:
http://arxiv.org/abs/0912.0469
We present recent investigations on the vector and axial-vector transitions of the baryon antidecuplet within the framework of the self-consistent SU(3) chiral quark-soliton model, taking into account the 1/N_c rotational and linear m_s corrections.
Externí odkaz:
http://arxiv.org/abs/0905.4228
Publikováno v:
JHEP 0807:132,2008
We investigate the semileptonic hyperon decays within the framework of the self-consistent SU(3) chiral quark-soliton model ($\chi$QSM). We take linear $1/N_c$ rotational as well as linear $m_s$ corrections into account and apply the symmetry conserv
Externí odkaz:
http://arxiv.org/abs/0806.4072
Publikováno v:
Phys.Rev.D78:054005,2008
We investigate the axial-vector transition constants of the baryon antidecuplet to the octet and decuplet within the framework of the self-consistent SU(3) chiral quark-soliton model. Taking into account rotational 1/N_c and linear m_s corrections an
Externí odkaz:
http://arxiv.org/abs/0805.4063
Publikováno v:
Nucl.Phys.A811:353-377,2008
We investigate the vector transition form factors of the nucleon and vector meson K^* to the pentaquark baryon Theta^+ within the framework of the SU(3) chiral quark-soliton model. We take into account the rotational 1/N_c and linear $m_{\rm s}$ corr
Externí odkaz:
http://arxiv.org/abs/0803.2276
Publikováno v:
Mod.Phys.Lett.A23:2238-2241,2008
We present in this talk recent results of the vector and axial-vector transitions of the nucleon to the pentaquark baryon Theta^{+}, based on the SU(3) chiral quark-soliton model. The results are summarized as follows: K^{*}-N-Theta vector and tensor
Externí odkaz:
http://arxiv.org/abs/0802.2368
Publikováno v:
Phys.Rev.D76:116007,2007
We investigate the magnetic susceptibility of the QCD vacuum with the $1/N_c$ corrections taken into account, based on the instanton vacuum. Starting from the instanton liquid model we derive the gauged light-quark partition function in the presence
Externí odkaz:
http://arxiv.org/abs/0708.3526
Autor:
Praszalowicz, Michal, Goeke, Klaus
We use the chiral quark soliton model to estimate masses and widths of the two eikosiheptaplets (27-plets of SU(3) flavor) of spin 3/2 and 1/2 that emerge in the rigid rotator quantization. We use as input: hyperon decays, Theta+ mass and width. Whil
Externí odkaz:
http://arxiv.org/abs/0708.1686
Publikováno v:
Phys.Rev.D75:094004,2007
Using the exisiting experimental data for hyperon semileptonic decays and the flavor-singlet axial-vector charge $g_{A}^{(0)}$ from polarized deep inelastic scattering of the proton, we derive the decay width of the $\Theta^{+}$ pentaquark baryon. We
Externí odkaz:
http://arxiv.org/abs/hep-ph/0701168