https://doi.org/10.1140/epja/i2009-10875-5
Regular Article - Theoretical Physics
Kaonic production of
(1405) off deuteron target in chiral dynamics
1
Yukawa Institute for Theoretical Physics, Kyoto University, 606-8502, Kyoto, Japan
2
Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Aptdo. 22085, 46071, Valencia, Spain
3
Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan
* e-mail: jido@yukawa.kyoto-u.ac.jp
Received:
9
September
2009
Revised:
11
September
2009
Accepted:
13
September
2009
Published online:
3
October
2009
The K--induced production of (1405) is investigated in K
-
d
n reactions based on coupled-channels chiral dynamics, in order to discuss the resonance position of the
(1405) in the
N channel. We find that the K
-
d
(1405)n process favors the production of
(1405) initiated by the
N channel. The present approach indicates that the
(1405) -resonance position is 1420MeV rather than 1405MeV in the
invariant-mass spectra of K
-
d
n reactions. This is consistent with an observed spectrum of the K
-
d
n with 686-844MeV/c incident K- by bubble chamber experiments done in the 70s. Our model also reproduces the measured
(1405) production cross-section.
PACS: 14.20.Jn Hyperons – / 25.80.Nv Kaon-induced reactions – / 13.75.Jz Kaon-baryon interactions – / 12.39.Fe Chiral Lagrangians –
© SIF, Springer-Verlag Berlin Heidelberg, 2009