44 citations · 75 across the 16 of their papers we have counts for
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Radiative decays of light-quark mesons to a pion revisited in the covariant oscillator quark model
Kenji Yamada, Tomohito Maeda
The present talk consists of two parts. The first one is allocated for consideration of the dimension of bilocal meson fields for quark-antiquark meson systems, which have been so…
Proper-time Quantum Mechanics for Multi-Quark System and Composite-Hadron Spectroscopy
Shin Ishida, Tomohito Maeda, Kenji Yamada +1
One of the most important problem in hadron physics is to establish the Lorentz-invariant classification scheme of composite hadrons, extending the framework of non-relativistic qu…
Radiative pi^pm gamma transitions of excited light-quark mesons in the covariant oscillator quark model
Tomohito Maeda, Kenji Yamada, Masuho Oda +1
The COMPASS collaboration, as a part of their hadron spectroscopy program, is going to measure the radiative decay widths of light-quark mesons via the Primakoff reactions. In this…
D_{s1}^{*}(2710) and D_{sJ}^{*}(2860) in the U~(12)*O(3,1)-scheme
Tomohito Maeda, Kenji Yamada, Masuho Oda +1
In order to classify the charmed-strange mesons, including puzzling D_{s0}^{*}(2317) and D_{s1}(2460), and recently observed D_{s1}^{*}(2710) and D_{sJ}^{*}(2860), we employ the U~…
On the Existence of Light-Scalar Mesons kappa(800) and kappa'(1150): The U~(12) Scheme and BES II Data
Kenji Yamada, Tomohito Maeda
We present that there should exist a light strange-scalar meson kappa', in addition to the kappa(800), which has a mass around 1.1-1.2 GeV, a rather narrow width, and couples stron…
The qqbar S-wave axial-vector mesons in the covariant U~(12)-scheme
Tomohito Maeda, Kenji Yamada, Masuho Oda +1
We study the properties of axial vector mesons a1 and b1 as relativistic S-wave states which are predicted in the U~(12)-scheme, through the analyses of their radiative and pionic…
Radiative Decays of q bar q Chiral States in the U~(12)-Scheme
Tomohito Maeda, Kenji Yamada, Masuho Oda +1
The radiative transitions between ground-states (GS) of light q bar q mesons are investigated in the U~(12)-scheme. In this scheme the rich decay-spectra are offered even in transi…
Chiral Mass Splitting for c \bar{s} and c \bar{n} Mesons in the \tilde{U}(12)-Classification Scheme of Hadrons
Kenji Yamada, Tomohito Maeda, Shin Ishida
We investigate the chiral mass splitting of parity-doubled J=0,1 states for c \bar{s} and c \bar{n} meson systems in the \tilde{U}(12)_{SF}-classification scheme of hadrons, using…
Four Quark cn - nbar cbar States in U(12)-Scheme and X(3872)/Y(3940)
Muneyuki Ishida, Shin Ishida, Tomohito Maeda
The properties of four quark cn - nbar cbar states are investigated as cn di-quark and nbar cbar di-antiquark system in U(12)-classification scheme of hadrons, recently proposed by…
The DsJ*(2317) and DsJ(2460) mesons in U~(12)-classification scheme of hadrons
Shin Ishida, Muneyuki Ishida, Tomohito Maeda +2
The narrow mesons, DsJ*(2317) and DsJ(2460), observed recently in the final states Ds+ pi0 and Ds*+ pi0 are pointed out to be naturally assigned as the ground-state scalar and axia…
The Ds(2317) and Ds(2463) Mesons as Scalar and Axial-Vector Chiralons in the Covariant Level-Classification Scheme
Shin Ishida, Muneyuki Ishida, Toshihiko Komada +4
The new narrow mesons observed recently in the final states Ds+ pi0 and Ds*+ pi0 are pointed out to be naturally assigned as the ground-state scalar and axial-vector chiralons in t…
Possible Evidence for a Chiral Particle B_0chi, Scalar Meson in the B Meson System
Daiki Ito, Muneyuki Ishida, Shin Ishida +3
In the covariant level-classification scheme of hadrons proposed recently, the existence of "chiral particles", scalar and axial-vector mesons as the partners of the ground-state p…
Covariant Level-Classification Scheme and Chiral Symmetry
Shin Ishida, Muneyuki Ishida, Tomohito Maeda
Starting from the bi-local Klein-Gordon Equation with spin-independent squared-mass operator, we give a covariant quark representation of general composite meson systems with defin…
Covariant Quark-Representation of Composite Meson Systems and Chiral Symmetry
Shin Ishida, Muneyuki Ishida, Tomohito Maeda
Assuming the spin-independence for confining force, we give a covariant quark representation of general composite meson systems with definite Lorentz transformation properties. For…
Covariant Description of Composite Meson Systems and Chiral Symmetry
Shin Ishida, Muneyuki Ishida, Tomohito Maeda
Assuming the spin-independence for confining force, we give a covariant quark representation of general composite meson systems with definite Lorentz transformation properties. For…