50 citations · 291 across the 26 of their papers we have counts for
26 papers
QCD sum rules for positive and negative parity heavy baryons at next-to-leading order in -expansion
Tetsuo Nishikawa, Yoshihiko Kondo, Yoshiko Kanada-En'yo
QCD sum rules for positive and negative parity heavy baryons in the heavy quark limit are formulated. We apply the method to and channels. We include the next-to-leading or…
QCD sum rules for quark-gluon three-body components in the B meson
Tetsuo Nishikawa, Kazuhiro Tanaka
We discuss the QCD sum rule calculation of the heavy-quark effective theory parameters, and , which correspond to matrix elements representing quark-gluon three-body com…
Exotic Quark Structure of Lambda(1405) in QCD Sum Rule
T. Nakamura, J. Sugiyama, N. Ishii +2
A new analysis is performed in QCD sum rule for the lightest negative parity baryon Lambda (1405). Mixings of three-quark and five-quark Fock components are taken into account. Ter…
ppK- bound states from Skyrmions
Tetsuo Nishikawa, Yoshihiko Kondo
The bound kaon approach to the strangeness in the Skyrme model is applied to investigating the possibility of deeply bound states. We describe the system as two-Sky…
Mixings of 4-quark components in light non-singlet scalar mesons in QCD sum rules
J. Sugiyama, T. Nakamura, N. Ishii +2
Mixings of 4-quark components in the non-singlet scalar mesons are studied in the QCD sum rules. We propose a formulation to evaluate the cross correlators of q\bar q and qq\bar q…
Axial Vector Tetraquark with Two s-quarks
Yoshiko Kanada-En'yo, Osamu Morimatsu, Tetsuo Nishikawa
Possibility of an axial vector isoscalar tetraquark is discussed. If a meson in the mass region GeV consists of four quarks , t…