Speaker
Mihail Chizhov
Description
We propose an explanation of the inverse mass hierarchy of the low-lying nonet of the scalar mesons in the framework of the massless Nambu–Jona-Lasinio U_R(3)xU_L(3) quark model. The collective meson states are described via quark–antiquark pairs, whose condensates lead simultaneously to spontaneous breaking of chiral and flavour symmetries. It is shown that, due to flavour symmetry breaking, two iso-doublets of K_0(700) mesons play the role of Goldstone bosons. It is also proven that there exists a solution with degenerate masses of the a_0(980)
and f_0(980) mesons and a zero mass of the f_0(500) meson.
Details
N/A
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | No |
| Name of experiment and experimental site | N/A |
| Is the speaker for that presentation defined? | Yes |
Author
Mihail Chizhov