Электронная библиотека (репозиторий) Томского государственного университета
Gutsche, Thomas

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Source: Physical Review D. 2018. Vol. 97, № 1. P. 014009-1-014009-13
Type: статьи в журналах
Date: 2018
Description: It is shown that the basic shape of dipion and KK̅ mass spectra in decays J/ψ→ϕ(ππ,KK̅), ψ (2S)→J/ψππ, Y(4260)→J/ψ π π and in the two-pion transitions of bottomonia states are explained by an unified ... More
Source: Physical Review D. 2018. Vol. 97, № 5. P. 054011-1-054011-15
Type: статьи в журналах
Date: 2018
Description: We present an improved study of the electromagnetic form factors of the nucleon and of the Roper-nucleon transition using an extended version of the effective action of soft-wall AdS/QCD. We include n ... More
Source: Few-body systems. 2018. Vol. 59, № 4. P. 66 (1-4)
Type: статьи в журналах
Date: 2018
Description: We use the present upper bound on the neutron electric dipole moment to give an estimate for the upper limit of the CP-violating couplings of the η(η′) to the neutron. Using this result, we derive con ... More
Source: Physical Review D. 2017. Vol. 95, № 3. P. 036022-1-036022-9
Type: статьи в журналах
Date: 2017
Description: 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 this result, we then d ... More
Source: EPJ Web of Conferences. 2017. Vol. 138. P. 01025 (1-10)
Type: статьи в журналах
Date: 2017
Description: The basic shape of di-pion mass spectra in the two-pion transitions of both charmonia and bottomonia states is explained by a unified mechanism based on contributions of the ππ, KK̅, and ηη coupled ch ... More
Source: EPJ Web of Conferences. 2017. Vol. 138. P. 04003 (1-7)
Type: статьи в журналах
Date: 2017
Description: The lightest nucleon resonances are described at light front as mixed states of the 3q cluster (“quark core”) possessing a definite value of the inner orbital momentum L = 0,1 and a hadron molecular s ... More
Source: Few-body systems. 2017. Vol. 58, № 2. P. 87 (1-7)
Type: статьи в журналах
Date: 2017
Description: We use different light-front wave functions (two inspired by the AdS/QCD formalism), together with a model of the nucleon in terms of meson–baryon fluctuations to calculate the nonperturbative (intrin ... More
Source: The European physical journal C. 2017. Vol. 77, № 2. P. 86 (1-14)
Type: статьи в журналах
Date: 2017
Description: Continuing our analysis of parton distributions in the nucleon, we extend our light-front quark model in order to obtain both the helicity-independent and the helicity-dependent parton distributions, ... More
Source: Physical Review D. 2017. Vol. 96, № 9. P. 094018-1-094018-6
Type: статьи в журналах
Date: 2017
Description: We study the exclusive production of scalar S=0++ and tensor T=2++ mesons through single-photon annihilation e+e−→γ∗→γS(T). Using QCD compositeness of the involved hadrons considered as quark-antiquar ... More
Source: Physical Review D. 2015. Vol. 92, № 9. P. 096004-1-096004-9
Type: статьи в журналах
Date: 2015
Description: We present the calculation of the hyperon forward spin polarizability γ0 using manifestly Lorentz-covariant baryon chiral perturbation theory including the intermediate contribution of the spin-3/2 st ... More
Source: Physical Review D. 2015. Vol. 91, № 11. P. 114001-1-114001-6
Type: статьи в журналах
Date: 2015
Description: We present a high-quality description of the deuteron electromagnetic form factors in a soft-wall anti-de Sitter/quantum chromodynamics approach. We first propose an effective action describing the dy ... More
Source: Physical Review D. 2015. Vol. 91, № 5. P. 054028-1-054028-10
Type: статьи в журналах
Date: 2015
Description: Using global fits of valence u and d quark parton distributions and data on quark and nucleon form factors in the Euclidean region, we derive a light-front quark model for the nucleon structure consis ... More
Source: Few-body systems. 2015. Vol. 56, № 6. P. 633-637
Type: статьи в журналах
Date: 2015
Description: We discuss a holographic soft-wall model that consider several Fock states in nucleon description. In our approach nucleon structure is a superposition of a three-valence quark state with high Fock st ... More
Source: Journal of physics G: Nuclear and particle physics. 2015. Vol. 42, № 7. P. 075002 (1-8)
Type: статьи в журналах
Date: 2015
Description: We provide a new insight into the problem of generating the hadron mass spectrum in the framework of the covariant confined quark model. One of the underlying principles of this model is the composite ... More
Source: International journal of modern physics: Conference series. 2015. Vol. 39. P. 1560112-1-1560112-6
Type: статьи в журналах
Date: 2015
Description: We analyze the tauonic semileptonic baryon decays Λ0b→Λ+c+τ−+ν̄ τ with particular emphasis on the lepton helicity flip contributions which vanish for zero lepton masses. We calculate the total rate, d ... More
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