Citation
M. Alford et Rl. Jaffe, Insight into the scaler mesons from a lattice calculation, NUCL PHYS B, 578(1-2), 2000, pp. 367-382
Citations number
32
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B
ISSN journal
05503213
→ ACNP
Volume
578
Issue
1-2
Year of publication
2000
Pages
367 - 382
Database
ISI
SICI code
0550-3213(20000703)578:1-2<367:IITSMF>2.0.ZU;2-V
Abstract
We study the possibility that the light scalar mesons are (q) over bar(2)q(
2) states rather than (q) over bar q. We perform a lattice QCD calculation
of pseudoscalar meson scattering amplitudes, ignoring quark loops and quark
annihilation, and find indications that for sufficiently heavy quarks ther
e is a stable four-quark bound state with J(PC) = 0(++) and non-exotic flav
or quantum numbers. (C) 2000 Elsevier Science B.V. All rights reserved.