We review a recent work on masses of mesons and nucleons within a hard wall model of holographic QCD in a unified approach.In order to treat meson and nucleon properties on the same footing,we introduced the same infr...We review a recent work on masses of mesons and nucleons within a hard wall model of holographic QCD in a unified approach.In order to treat meson and nucleon properties on the same footing,we introduced the same infrared （IR） cut for both sectors.In framework of present approach,the best fit to the experimental data is achieved introducing the anomalous dimension for baryons.展开更多
We investigate instanton effects on the heavy-quark potential, including its spin-dependent part, based on the instanton liquid model. Starting with the central potential derived from the instanton vacuum, we obtain t...We investigate instanton effects on the heavy-quark potential, including its spin-dependent part, based on the instanton liquid model. Starting with the central potential derived from the instanton vacuum, we obtain the spin-dependent part of the heavy-quark potential. We discuss the results of the heavy-quark potential from the instanton vacuum. Finally, we solve the nonrelativistic two-body problem, associated with the heavy-quark potential from the instanton vacuum. The instanton effects on the quarkonia spectra are marginal but are required for quantitative description of the spectra.展开更多
基金Supported by AvH,Basic Science Research Program through National Research Foundation of Korea (NRF) funded by Ministry of Education,Science and Technology (2009-0073101)
文摘We review a recent work on masses of mesons and nucleons within a hard wall model of holographic QCD in a unified approach.In order to treat meson and nucleon properties on the same footing,we introduced the same infrared （IR） cut for both sectors.In framework of present approach,the best fit to the experimental data is achieved introducing the anomalous dimension for baryons.
基金Supported by Basic Science Research Program through the National Research Foundation(NRF)of Korea funded by the Korean government(Ministry of Education,Science and Technology,MEST)Grant Numbers 2016R1D1A1B03935053(UY)and 2015R1D1A1A01060707(HChK)partly Supported by RIKEN iTHES Project
文摘We investigate instanton effects on the heavy-quark potential, including its spin-dependent part, based on the instanton liquid model. Starting with the central potential derived from the instanton vacuum, we obtain the spin-dependent part of the heavy-quark potential. We discuss the results of the heavy-quark potential from the instanton vacuum. Finally, we solve the nonrelativistic two-body problem, associated with the heavy-quark potential from the instanton vacuum. The instanton effects on the quarkonia spectra are marginal but are required for quantitative description of the spectra.
