@article{ji_mishchenko_radyushkin_2006, title={Higher Fock-state contributions to the generalized parton distribution of pion}, volume={73}, ISSN={["1550-2368"]}, DOI={10.1103/physrevd.73.114013}, abstractNote={We discuss the higher Fock-state (qqg) contributions to the nonzero value of the pion generalized parton distribution (GPD) at the crossover point x={zeta} between the DGLAP and ERBL regions. Using the phenomenological light-front constituent quark model, we confirm that the higher Fock-state contributions indeed give a nonzero value of the GPD at the crossover point. Iterating the light-front quark model wave function of the lowest qq Fock state with the Bethe-Salpeter kernel corresponding to the one-gluon exchange, we include all possible time-ordered qqg Fock-state contributions and obtain the pion GPD satisfying necessary sum rules and continuity conditions.}, number={11}, journal={PHYSICAL REVIEW D}, author={Ji, Chueng-Ryong and Mishchenko, Yuriy and Radyushkin, Anatoly}, year={2006}, month={Jun} }
@article{mishchenko_ji_2005, title={A novel variational approach for quantum field theory: Example of study of the ground state and phase transition in nonlinear sigma model}, volume={20}, ISSN={["0217-751X"]}, DOI={10.1142/S0217751X05026819}, abstractNote={We discuss a novel form of the variational approach in Quantum Field Theory in which the trial quantum configuration is represented directly in terms of relevant expectation values rather than, e.g., increasingly complicated structure from Fock space. The quantum algebra imposes constraints on such expectation values so that the variational problem is formulated here as an optimization under constraints. As an example of application of such approach we consider the study of ground state and critical properties in a variant of nonlinear sigma model.}, number={15}, journal={INTERNATIONAL JOURNAL OF MODERN PHYSICS A}, author={Mishchenko, Y and Ji, CR}, year={2005}, month={Jun}, pages={3488–3494} }
@article{mishchenko_ji_2005, title={Exploring properties of dark and visible mass distribution on different scales in the universe}, volume={20}, ISSN={["0217-751X"]}, DOI={10.1142/S0217751X05025929}, abstractNote={In this short note we discuss recent observation of linear correlation on log-log scale between distribution of dark and visible mass in gravitationally bound systems. The coefficient of such correlation appears to be essentially the same for various systems of dramatically different scales such as spiral galaxies of different luminosities and galaxy clusters. We briefly touch possible interpretations of this observation and implications for the mass of dark matter particle.}, number={14}, journal={INTERNATIONAL JOURNAL OF MODERN PHYSICS A}, author={Mishchenko, Y and Ji, CR}, year={2005}, month={Jun}, pages={3124–3127} }
@article{ji_mishchenko_2005, title={Time-to-space conversion in quantum field theory of flavor mixing}, volume={315}, ISSN={["1096-035X"]}, DOI={10.1016/j.aop.2004.09.004}, abstractNote={We consider the problem of time-to-space conversion in quantum field theory of flavor mixing using a generalization of the wave-packet method in quantum mechanics. We work entirely within the canonical formalism of creation and annihilation operators that allows us, unlike the usual wave-packet formulation, to include the nontrivial effect due to flavor condensation in the vacuum.}, number={2}, journal={ANNALS OF PHYSICS}, author={Ji, CR and Mishchenko, Y}, year={2005}, month={Feb}, pages={488–504} }
@article{capolupo_ji_mishchenko_vitiello_2004, title={Phenomenology of flavor oscillations with non-perturbative effects from quantum field theory}, volume={594}, ISSN={["1873-2445"]}, DOI={10.1016/j.physletb.2004.05.016}, abstractNote={We analyze phenomenological aspects of the quantum field theoretical formulation of meson mixing and obtain the exact oscillation formula in the presence of the decay. This formula is different from quantum mechanical formula by additional high-frequency oscillation terms. In the infinite volume limit, the space of the flavor quantum states is unitarily inequivalent to the space of energy eigenstates.}, number={1-2}, journal={PHYSICS LETTERS B}, author={Capolupo, A and Ji, CR and Mishchenko, Y and Vitiello, G}, year={2004}, month={Jul}, pages={135–140} }
@article{mishchenko_ji_2003, title={Molar mass estimate of dark matter from the dark mass distribution measurements}, volume={68}, ISSN={["2470-0029"]}, DOI={10.1103/physrevd.68.063503}, abstractNote={We study the distribution of dark matter versus visible matter using a set of data obtained from strong gravitational lensing in the galaxy cluster $\mathrm{CL}0024+1654$ and another set of data inferred from the universal rotation curves in spiral galaxies. The important feature of these two dramatically different observations is that the mass density profile of both visible and dark components can be estimated. From these measurements we deduce the mass of the dark matter particle and our estimate of the mass for the dark matter particle is ${\ensuremath{\mu}}_{d}\ensuremath{\approx}200\char21{}700\mathrm{MeV}.$ We contrast our estimates from $\mathrm{CL}0024+1654$ data and the universal rotation curves of the spiral galaxies and discuss their consistency.}, number={6}, journal={PHYSICAL REVIEW D}, author={Mishchenko, Y and Ji, CR}, year={2003}, month={Sep} }
@article{ji_mishchenko_2002, title={General theory of quantum field mixing}, volume={65}, number={9}, journal={Physical Review. D, Particles and Fields}, author={Ji, C. R. and Mishchenko, Y.}, year={2002}, pages={096015–1} }