Hybrid meson masses and the correlated Gaussian basis

Abstract

We revisited a model for charmonium hybrid meson with a magnetic gluon [Yu. S. Kalashnikova and A. V. Nefediev, Phys. Rev. D {\bf 77}, 054025 (2008)] and improved the numerical calculations. These improvements support the hybrid meson interpretation of X(4260). Within the same model, we computed the hybrid meson mass with an electric gluon which is resolved to be lighter. Relativistic effects and coupling channels decreased also the mass.

9 pages, 20 figures ; accepted for publication in Phys. Rev. D

References in corpus (16)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Observation of Two Resonant Structures in e+e- to pi+ pi- psi(2S) via Initial State Radiation at Belle
• Evidence of a Broad Structure at an Invariant Mass of 4.32 GeV/$c^2$ in the Reaction $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\psi (2S)$ Measured at BaBar
• The Physics of Glueballs
• Spectra and decays of hybrid charmonia
• QCD Coulomb gauge approach to hybrid mesons
• On two- and three-body descriptions of hybrid mesons
• Gluons in glueballs: Spin or helicity?
• Energy spectrum of the low-lying gluon excitations in the Coulomb gauge
• First study of the gluon-quark-antiquark static potential in SU(3) Lattice QCD
• Hybrid mesons and auxiliary fields
• Auxiliary fields as a tool for computing analytical solutions of the Schrödinger equation
• Excited flux tube from $q\bar{q}g$ hybrid mesons
• The few-body problem in terms of correlated gaussians
• Short-range potentials from QCD at order $g^2$
• Spin dependent operators in correlated gaussian bases

Cited by in corpus (5)

• The $P$-wave $[cs][\bar{c}\bar{s}]$ tetraquark state: Y(4260) or Y(4660)?
• Analysis of the Y(4274) with QCD sum rules
• Nonperturbative approach to the parton model
• Hyperspherical-coordinate approach to the spectra and decay widths of hybrid quarkonia
• Masses and decays of the bottom-charm hybrid meson $c\bar{b}g$