Kπ scattering, k Meson, and current algebra

Roy, Probir (1968) Kπ scattering, k Meson, and current algebra Physical Review, 168 (5). pp. 1708-1711. ISSN 0031-899X

Full text not available from this repository.

Official URL: http://prola.aps.org/abstract/PR/v168/i5/p1708_1

Related URL: http://dx.doi.org/10.1103/PhysRev.168.1708


We discuss Kπ scattering, using a low-energy-dominated sum rule derived from the SU(3)⊗SU(3) algebra of currents, assuming the pionic and the kaonic pole dominance hypotheses. The exact validity of the latter assumptions implies a much larger S-wave Kπ scattering in the I=½ channel than in the I=3/2 channel. The use of the current-algebra scattering lengths for threshold elastic Kπ scattering suggests that this discrimination is due to a scalar I=½ resonance. If this is the κ(725), a width ≥28±2 MeV is predicted. If, however, the error in kaonic pole dominance is greater than 30%, the existence of the κ would not be required.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:46546
Deposited On:05 Jul 2011 06:08
Last Modified:05 Jul 2011 06:08

Repository Staff Only: item control page