Excited scalar mesons in a chiral quark model

Abstract

First radial excitations of the isoscalar and isovector scalar mesons f_0(400-1200), f_0(980) and a_0(980) are investigated in the framework of a nonlocal version of a chiral quark model of the Nambu--Jona-Lasinio type. It is shown that f_0(1370), f_J(1710) and a_0(1450) are the first radially excited states of f_0(400-1200), f_0(980) and a_0(980) which are ground states of the scalar meson nonet. The mesons' masses and strong decay widths are calculated. The scalar resonance f_0(1500) is supposed to be a glueball. The status of K_0^*(1430) is discussed.

LaTeX, 1 figure, minor misprints eradicated

Cited by in corpus (11)

• Charm and hidden charm scalar mesons in the nuclear medium
• Mixing among light scalar mesons and L=1 q\bar{q} scalar mesons
• Excited Scalar and Pseudoscalar Mesons in the Extended Linear Sigma Model
• A possible assignment for the ground scalar meson nonet
• On the role of meson loops in the $f_0(1710)$ decay into $V\gamma$
• Processes of $e^{+}{e}^{-}\to (\eta ,{\eta }^{\prime },\eta (1295),\eta (1475))\gamma$ in the extended Nambu -- Jona-Lasinio model
• Decay of the pseudoscalar glueball and its first excited state into scalar and pseudoscalar mesons and their first excited states
• Two-photon decays and photoproduction on electrons of $\eta (550)$, ${\eta }^{\prime }(958)$, $\eta (1295)$, and $\eta (1475)$ mesons
• Two photon decay and photoproduction of radial excitation of pion ${\pi }_0^{\prime }$
• Strong Decays of Scalar Glueball in a Scale-Invariant Chiral Quark Model
• Scalar Mesons and Glueballs in a Chiral U(3)xU(3) Quark Model with 't Hooft Interaction