Tomsk Polytechnic University

output

20032026

most citedObservation of a narrow pentaquark state,

P_{c} (4312)^{+}

, and of two-peak structure of the

P_{c} (4450)^{+}

738 citations

Showing 2016 · hep-phShow all

8 papers · 2 filters

hep-ph2016★ 22 cited

CP-violating decays of the pseudoscalars eta and eta' and their connection to the electric dipole moment of the neutron

Thomas Gutsche, Astrid N. Hiller Blin, Sergey Kovalenko +4

Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the eta(eta') to the nucleon. Using th…

hep-ph2016

The interference effects of multi-channel pion-pion scattering contributions to the final states of $Ψ$ - and $Υ$ -meson family decays

Yu. S. Surovtsev, P. Bydžovský, T. Gutsche +3

It is shown that the basic shape of dipion mass distributions in the two-pion transitions of both charmonia and bottomonia states are explained by an unified mechanism based on the…

hep-ph2016★ 35 cited

Nucleon parton distributions in a light-front quark model

Thomas Gutsche, Valery E. Lyubovitskij, Ivan Schmidt

Continuing with our analysis of parton distributions in the nucleon, we extend our light-front quark model in order to obtain both the helicity independent and helicity dependent p…

hep-ph2016★ 15 cited

QCD Compositeness as Revealed in Exclusive Vector Boson Reactions through Double-Photon Annihilation: $e^{+} e^{-} \to γ γ^{} \to γ V^{0}$ and $e^{+} e^{-} \to γ^{} γ^{*} \to V^{0} V^{0}$

Stanley J. Brodsky, Richard F. Lebed, Valery E. Lyubovitskij

We study the exclusive double-photon annihilation processes, $e^{+} e^{-} \to γ γ^{*} \to γ V^{0}$ and $e^{+} e^{-} \to γ^{*} γ^{*} \to V_{a}^{0} V_{b}^{0},$ where the $V_{i}^{0}$ is a neutral vector me…

hep-ph2016★ 51 cited

Four-quark structure of Zc(3900), Z(4430) and Xb(5568) states

Fabian Goerke, Thomas Gutsche, Mikhail A. Ivanov +3

We examine the four-quark structure of the recently discovered charged $Z_{c} (3900)$ , $Z (4430)$ , and $X_{b} (5568)$ states. We calculate the widths of the strong decays $Z_c^+ \to J/ψπ^…

hep-ph2016★ 10 cited

Nucleon tensor form factors in a relativistic confined quark model

Thomas Gutsche, Mikhail A. Ivanov, Jurgen G. Korner +2

We present results for the isotriplet and isosinglet tensor form factors of the nucleon in the relativistic confined quark model. The model allows us to calculate not only their no…