We study the heavy quarkonium within the basis light-front quantization approach. We implement the one-gluon exchange interaction and a confining potential inspired by light-front holography. We adopt the holographic light-front wavefunction (LFWF) as our basis function and solve the non-perturbative dynamics by diagonalizing the Hamiltonian matrix. We obtain the mass spectrum for charmonium and bottomonium. With the obtained LFWFs, we also compute the decay constants and the charge form factors for selected eigenstates. The results are compared with the experimental measurements and with other established methods.
|Original language||English (US)|
|Number of pages||7|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Jul 10 2016|
Bibliographical noteFunding Information:
We wish to thank P. Wiecki, V.A. Karmanov, S.J. Brodsky, G. de Téramond, A.P. Trawiński, S. Prell, J.R. Spence, A.M. Shirokov, S.D. Głazek and G. Chen for valuable discussions. We thank G. Chen for cross-checking the expressions and the codes. This work was supported in part by the Department of Energy under Grant Nos. DE-FG02-87ER40371 and DESC0008485 (SciDAC-3/NUCLEI) and by the National Science Foundation under Grant No. PHY-0904782 . X. Zhao is supported by the new faculty startup funding by the Institute of Modern Physics, Chinese Academy of Sciences under Grant No. Y532070ZY0 .
- Decay constant
- Form factor
- Heavy quarkonium
- Holographic QCD
- Light front