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Quarkonium as relativistic bound state on the light front
19
2017-05-16 | 【 【打印】【关闭】
    

  报告题目:Quarkonium as relativistic bound state on the light front 

  报告人:Mr. Yang Li  (李阳

       Post-Doctor, Iowa State University 

  时间安排:2017年5月1916:00         

  地点:近代物理所5号楼1008会议室 

  报告摘要:  

  We study charmonium and bottomonium as relativistic bound states in a light-front quantized Hamiltonian formalism. The effective Hamiltonian is based on light-front holography. We use a recently proposed longitudinal confinement to complete the soft-wall holographic potential for the heavy flavors. The spin structure is generated from the one-gluon exchange interaction with a running coupling. The adoption of asymptotic freedom improves the spectroscopy compared with previous light-front results. Within this model, we compute the mass spectroscopy, decay constants and the r.m.s. radii. We also present a detailed study of the obtained light-front wave functions and use the wave functions to compute the light-cone distributions, specifically the distribution amplitudes and parton distribution functions. Overall, our model provides a reasonable description of the heavy quarkonia. 

    

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