A. Hosaka

Publications461
h-index33
Citations3,788
Highly Influential Citations34
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Spectrum of heavy baryons in the quark model
Single- and double- heavy baryons are studied in the constituent quark model. The model Hamiltonian is chosen as a standard one with two exceptions : (1) The color-Coulomb term depend on quark…
Quarks, Baryons and Chiral Symmetry
Ingredients of the Standard Model Symmetries and Wave Functions Chiral Symmetry The Sigma Model Chiral Bag Model Nucleon Properties Large-Nc Baryons Excited Baryons.
Two skyrmion interaction for the Atiyah-Manton ansatz☆
Abstract The Atiyah-Manson construction is used to form a baryon number two ansatz for skyrmions that connects the strongly attractive toroidal ground state at small separation and the weakly…
Hidden gauge formalism for the radiative decays of axial-vector mesons
The radiative decay of the axial-vector resonances into a pseudoscalar meson and a photon is studied using the vector meson Lagrangian obtained from the hidden gauge symmetry (HGS) formalism. The…
Heavy Hadrons in Nuclear Matter
Current studies on heavy hadrons in nuclear medium are reviewed with a summary of the basic theoretical concepts of QCD, namely chiral symmetry, heavy quark spin symmetry, and the effective…
Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules
We study decay properties of the P-wave charmed baryons using the method of light-cone QCD sum rules, including the S-wave decays of the flavor 3¯F P-wave charmed baryons into ground-state charmed…
Chiral Symmetry of Baryons
We study chiral symmetry aspects of the positive and negative parity baryons by identifying them with linear representations of the chiral group SU (N f ) ⊗ SU (N f ). It is shown that there are two…
D -wave charmed and bottomed baryons from QCD sum rules
We study the D-wave charmed baryons of SUd(3) flavor (3) over bar (F) using the method of QCD sum rules in the framework of heavy quark effective theory. We find that the Lambda(c)(2880),…
Compositeness of dynamically generated states in a chiral unitary approach
The structure of dynamically generated states in the chiral unitary approach is studied from a viewpoint of their compositeness. We analyze the properties of bound states, virtual states, and…
Structure of charmed baryons studied by pionic decays
We investigate the decays of the charmed baryons aiming at the systematic understanding of hadron internal structures based on the quark model by paying attention to heavy quark symmetry. We evaluate…
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