Ji, Xiangdong and Liu, Yizhuang and Zahed, Ismail (2021) Mass structure of hadrons and light-front sum rules in the ' t Hooft model. PHYSICAL REVIEW D, 103 (7): 074002. ISSN 2470-0010, 2470-0029
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We study the mass/energy structure of the bound state of hadrons in two-dimensional quantum chromodynamics in the large number of color limit ('t Hooft model). We analyze separately the contributions from the traceless and trace part of the energy-momentum tensor, and show that the masses are related to the matrix elements of the scalar charge and Coulomb energy. We derive the light-front sum rules for the scalar charge and Coulomb energy, expressed in terms of the light-front wave functions, and find that they are regular at x = 0 without the delta function contribution. We also consider the result for the massless Goldstone boson, as well as the structure of the gravitational form factors of the bound meson states.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CHIRAL SYMMETRY; PHOTOPRODUCTION; THRESHOLD; J/PSI; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Sep 2022 14:19 |
| Last Modified: | 13 Sep 2022 14:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47365 |
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