24 citations · 90 across the 12 of their papers we have counts for
6 papers · 1 filter
Global analysis of hadron-production data in e^+ e^- annihilation for determining fragmentation functions
M. Hirai, S. Kumano, T. -H. Nagai +2
Fragmentation functions of pion, kaon, and nucleon are determined by global analyses of hadron-production data in annihilation. It is particularly important that uncertain…
Proposal for exotic-hadron search by fragmentation functions
M. Hirai, S. Kumano, M. Oka +1
It is proposed that fragmentation functions should be used to identify exotic hadrons. As an example, fragmentation functions of the scalar meson f_0(980) are investigated. It is p…
Five-quark picture of Lambda(1405) in anisotropic lattice QCD
Noriyoshi Ishii, Takumi Doi, Makoto Oka +1
Five-quark (5Q) picture of Lambda(1405) is studied using quenched lattice QCD with an exotic 5Q operator of N\bar{K} type. To discreminate mere N\bar{K} and Σπscattering states, Hy…
Meson-baryon sigma terms in QCD Sum Rules
G. Erkol, M. Oka
We evaluate the pion-nucleon and the pion-Delta sigma terms by employing the method of quantum chromodynamics (QCD) sum rules. The obtained value of the pion-nucleon sigma term is…
Λ^{\ast}-hypernuclei in phenomenological nuclear forces
A. Arai, M. Oka, S. Yasui
The -hypernuclei, which are bound states of and nuclei, are discussed as a possible interpretation of the -nuclei. The Bonn and Nijmegen potentials are…
Triquark structure and isospin symmetry breaking in exotic Ds mesons
S. Yasui, M. Oka
The color anti-triplet triquark is considered as a compact component in the tetraquark structure of exotic mesons. We discuss the mass…