TY - JOUR

T1 - Large-Nc masses of light mesons from QCD sum rules for nonlinear radial Regge trajectories

AU - Афонин, Сергей Сергеевич

AU - Соломко, Тимофей Дмитриевич

PY - 2018/4/30

Y1 - 2018/4/30

N2 - The large-N c 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.

AB - The large-N c 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.

KW - QCD sum rules

KW - light mesons

UR - http://www.scopus.com/inward/record.url?scp=85046289098&partnerID=8YFLogxK

U2 - 10.1142/S0217751X18500690

DO - 10.1142/S0217751X18500690

M3 - Article

VL - 33

JO - International Journal of Modern Physics A

JF - International Journal of Modern Physics A

SN - 0217-751X

IS - 12

M1 - 18500690

ER -