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heavy meson spectra for heavy quark potential in quantum chromodynamics with dilaton

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Chinese Physics B 2002年第11期11卷 1140-1144页

作者：陈洪姜焕清等 DepartmentofPhysics SouthwestChinaNormalUniversityChongqing400715China InstituteofHighEnergyPhysics ChineseAcademyofSciencesBeijing100039China

For heavy meson systems, we study the heavy quark potential, which emerges from the effective dilaton-gluoncoupling inspired from the superstring theory. We put emphasis on the new confinement generating mechanism of thispotential through the investigation of the spin-averaged energy levels of the heavy meson systems. By using a unifiedapproach to the solutions of the Schrodinger and the spinless Salpeter equations, we can examine in a realistic waythe effects of using a relativistic kinetic energy. The obtained results agree favourably with other predictions, and therelativistic equation can better account for the observed energy levels.

关键词： dilaton quark potential heavy meson

heavy mesons in the Nambu-Jona-Lasinio model

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Chinese Physics C 2013年第3期37卷 8-15页

作者：郭霄雨陈晓林邓卫真 School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University

We propose an extended Nambu-Jona-Lasinio model to include heavy mesons with heavy quark *** quark current-current interaction is generalized to include the heavy quark currents. In order to comply with the heavy quark spin symmetry at the heavy quark limit,the dependence of the quark mass on the interaction strength is introduced. The light and heavy pseudo-scalar and vector mesons,their masses and the weak decay constants are calculated in the unified frame.

关键词： NJL model heavy meson heavy quark limit

meson electro-magnetic form factors in an extended Nambu–Jona-Lasinio model including heavy quark flavors

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Chinese Physics C 2015年第11期39卷 17-23页

作者：栾义龙陈晓林邓卫真 School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University

Based on an extended NJL model including heavy quark flavors, we calculate the form factors of pseudoscalar and vector mesons. After taking into account the vector-meson-dominance effect, which introduces a form factor correction to the quark vector coupling vertices, the form factors and electric radii of π^＋ and K^＋ pseudo-scalar mesons in the light flavor sector fit the experimental data well. The magnetic moments of the light vector mesons ρ^＋and K^＊＋are comparable with other theoretical calculations. The form factors in the light-heavy flavor sector are presented to compare with future experiments or other theoretical calculations.

关键词： NJL model heavy meson form factor magnetic moment

meson decays in an extended Nambu-Jona-Lasinio model with heavy quark flavors

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Chinese Physics C 2014年第1期38卷 14-18页

作者：邓红波陈晓林邓卫真 School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University

In a previous work, we proposed an extended Nmnbu-Jona-Lasinio （NJL） model including heavy quark flavors. In this work, we will calculate strong and radiative decays of vector mesons in this extended NJL model, incl... 详细信息

关键词： NJL model heavy meson heavy quark limit

Relativistic studies of the decay constants of S wave and P wave mesons

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Chinese Physics C 2010年第2期34卷 274-276页

作者：王国利张金梅王志会 Department of Physics Harbin Institute of Technology

Relativistic corrections are important in hadronic physics since even for the heavy hadrons there are sizable relativistic corrections. Therefore one should use a relativistic model to describe the higher excited states. This note summarizes our predictions for the decay constants of the S wave and P wave heavy mesons by means of the instantaneous relativistic Bethe Salpeter equation （Salpeter equation）.

关键词： decay constant Bethe-Salpeter relativistic heavy meson