Abstract
The large-Nc masses of light vector, axial, scalar and pseudoscalar mesons are calculated from QCD spectral sum rules for a particular ansatz interpolating the radial Regge trajectories. The ansatz includes a linear part plus exponentially degreasing corrections to the meson masses and residues. The form of corrections was proposed some time ago for consistency with analytical structure of Operator Product Expansion of the two-point correlation functions. We revised that original analysis and found the second solution for the proposed sum rules. The given solution describes better the spectrum of vector and axial mesons.
Original language | English |
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Article number | 18500690 |
Journal | International Journal of Modern Physics A |
Volume | 33 |
Issue number | 12 |
DOIs | |
State | Published - 30 Apr 2018 |
Externally published | Yes |
Keywords
- QCD sum rules
- light mesons
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
- Astronomy and Astrophysics