Observation of charged kappa in J/psi -> K*(892)-+Kspi+-, K*(892)-+ -> Kspi-+ at BESII

Abstract

Using 58 million J/psi decays obtained by BESII, a charged kappa particle is observed in the analysis of the Kspi+- system recoiling against K*(892)-+ selected in J/psi -> KsKspi+pi-. The mass and width values of the charged kappa are obtained to be (826+-49_{-34}^{+49}) MeV/c^2 and (449+-156_{-81}^{+144}) MeV/c^2 for the Breit-Wigner parameters, and the pole position is determined to be (764+-63_{-54}^{+71})-i(306+-149_{-85}^{+143}) MeV/c^2. They are in good agreement with those of the neutral kappa observed by the BES collaboration.

15 pages, 9 figures

References in corpus (3)

• A low-lying scalar meson nonet in a unitarized meson model
• The K^*_0(800) scalar resonance from Roy-Steiner representations of pi K scattering
• An improved study of the kappa resonance and the non-exotic $s$ wave $\pi K$ scatterings up to $\sqrt{s}=2.1$GeV of LASS data

Cited by in corpus (16)

• QCD and strongly coupled gauge theories: challenges and perspectives
• From controversy to precision on the sigma meson: a review on the status of the non-ordinary $f_0(500)$ resonance
• STCF Conceptual Design Report: Volume 1 -- Physics & Detector
• Cross Sections for the Reactions e+e- --> K+ K- pi+pi-, K+ K- pi0pi0, and K+ K- K+ K- Measured Using Initial-State Radiation Events
• Extended-soft-core Baryon-Baryon Model Esc08 II. Hyperon-Nucleon Interactions
• Second order cumulants of conserved charge fluctuations revisited I. Vanishing chemical potentials
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• $K_0^{\ast }(800)$ as a companion pole of $K_0^{\ast }(1430)$
• Strange resonance poles from $K\pi$ scattering below 1.8 GeV
• The non-ordinary Regge behavior of the K*0(800) or Kappa-meson versus the ordinary K*0(1430)
• Analysis of the nonet scalar mesons as tetraquark states with new QCD sum rules
• Investigating the composition of the K${}_0^{\ast }(700)$ state with ${\pi }^{\pm }$K${}_{\mathrm{S}}^0$ correlations at the LHC
• Model Independent Electromagnetic corrections in hadronic $\tau$ decays
• Dynamical study of the light scalar mesons below 1 GeV in a flux-tube model
• Studying $\kappa$ meson with a MILC fine lattice
• I=1/2 low-lying mesons in lattice QCD