Eur. Phys. J. A (2009) 42: 257-268
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

Abstract

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.