50 citations · 219 across the 20 of their papers we have counts for
12 papers · 1 filter
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…
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…
Bound kaon approach for the ppK- system in the Skyrme model
Tetsuo Nishikawa, Yoshihiko Kondo
The bound kaon approach to the strangeness in the Skyrme model is applied to exploring the possibility of deeply bound states. We derive the equation of motion for the kaon…
Positive and negative-parity flavor-octet baryons in coupled QCD sum rules
Yoshihiko Kondo, Osamu Morimatsu, Tetsuo Nishikawa +1
We apply the method of the QCD sum rule, in which positive- and negative-parity baryons couple with each other, to the flavor-octet hyperons and investigate the parity splittings.…
Coupled QCD sum rules for positive and negative-parity nucleons
Yoshihiko Kondo, Osamu Morimatsu, Tetsuo Nishikawa
A new approach of the QCD sum rule is proposed in which positive and negative-parity baryons couple with each other. With positive and negative-parity states explicitly taken into…
Theta++ from QCD sum rule
Tetsuo Nishikawa, Yoshiko Kanada-En'yo, Osamu Morimatsu +1
We study the pentaquark with and I=1 () in the QCD sum rule approach. We derive the QCD sum rules for positive and negative parity states of the pentaq…