Daisuke Jido
YOU?
Author Swipe
View article: Interrelation between <i>p</i> -Ca Atom Spectra and Nuclear Density Profiles
Interrelation between <i>p</i> -Ca Atom Spectra and Nuclear Density Profiles Open
This work studies $\bar{p}$-Ca atom spectra in light of the strong shifts and level widths, using the optical model with several types of parametric coefficients. The spectroscopic quantities are obtained as the eigenvalues of the Dirac eq…
View article: Pion properties in isospin-asymmetric nuclear matter using in-medium chiral perturbation theory
Pion properties in isospin-asymmetric nuclear matter using in-medium chiral perturbation theory Open
We compute the density dependence of in-medium pion properties, such as mass, wave function renormalization, and decay constant in the correlation function approach, and how they change under the influence of isospin-asymmetric nuclear mat…
View article: Theoretical study of the ΣN cusp in the K^- d→πΛN reaction
Theoretical study of the ΣN cusp in the K^- d→πΛN reaction Open
The $K^-d\rightarrow\pi\Lambda N$ reaction is useful for exploring the hyperon-nucleon interaction through final state interactions. In particular, the cusp structure of the $\Lambda N$ invariant mass spectrum at the $\Sigma N$ threshold c…
View article: Possible scenario of dynamical chiral symmetry breaking in the instanton liquid
Possible scenario of dynamical chiral symmetry breaking in the instanton liquid Open
Based on simulations of the interacting instanton liquid model (IILM) with three-flavor quarks, we compute the free energy density of the QCD vacuum as a function of the quark condensate. We then evaluate the second derivative of the free …
View article: Theoretical study of the $ΣN$ cusp in the $K^-d\rightarrowπΛN$ reaction
Theoretical study of the $ΣN$ cusp in the $K^-d\rightarrowπΛN$ reaction Open
The $K^-d\rightarrowπΛN$ reaction is useful for exploring the hyperon-nucleon interaction through final state interactions. In particular, the cusp structure of the $ΛN$ invariant mass spectrum at the $ΣN$ threshold contains information ab…
View article: Possible scenario of dynamical chiral symmetry breaking in the instanton liquid
Possible scenario of dynamical chiral symmetry breaking in the instanton liquid Open
Based on simulations of the interacting instanton liquid model (IILM) with three-flavor quarks, we compute the free energy density of the QCD vacuum as a function of the quark condensate. We then evaluate the second derivative of the free …
View article: Investigation of Kaonic Atom Optical Potential by the High-Precision Data of Kaonic 3He and 4He Atoms
Investigation of Kaonic Atom Optical Potential by the High-Precision Data of Kaonic 3He and 4He Atoms Open
We investigate kaonic atom optical potentials of $^3$He and $^4$He phenomenologically based on the latest high-precision data of the $2p$ states of the kaonic atoms in helium (J-PARC E62). We consider a simple phenomenological form for the…
View article: Possible solution to the difficulty in the interpretation of deuteron compositeness
Possible solution to the difficulty in the interpretation of deuteron compositeness Open
We study the theoretical structure of compositeness with explicit energy dependency and find a possible explanation for the difficulty in the interpretation of compositeness of deuteron. Many approaches, including the weak-binding limit, c…
View article: Mini-Proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024)"
Mini-Proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024)" Open
The mini proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024) [https://kds.kek.jp/event/46965]" held at J-PARC, February 19-21, 2024, are presented. The worksh…
View article: Interrelation between $\bar{p}$-Ca Atom Spectra and Nuclear Density Profiles
Interrelation between $\bar{p}$-Ca Atom Spectra and Nuclear Density Profiles Open
This work studies $\bar{p}$-Ca atom spectra in light of the strong shifts and level widths, using the optical model with several types of parametric coefficients. The spectroscopic quantities are obtained as the eigenvalues of the Dirac eq…
View article: Investigation of kaonic atom optical potential by the high precision data of kaonic $^3$He and $^4$He atoms
Investigation of kaonic atom optical potential by the high precision data of kaonic $^3$He and $^4$He atoms Open
We theoretically investigate kaonic atom states based on the latest high precision data of the $2p$ states of the kaonic atoms in $^3$He and $^4$He (J-PARC E62). We consider the phenomenological form for the optical potential proportional …
View article: Possible scenario of dynamical chiral symmetry breaking in the interacting instanton liquid model
Possible scenario of dynamical chiral symmetry breaking in the interacting instanton liquid model Open
We compute the vacuum energy density as a function of the quark condensate in the interacting instanton liquid model (IILM) and examine the pattern of dynamical chiral symmetry breaking from its behavior around the origin. This evaluation …
View article: $K^-d\rightarrowπΛN$ reaction with in-flight kaons for studying the $ΛN$ interaction
$K^-d\rightarrowπΛN$ reaction with in-flight kaons for studying the $ΛN$ interaction Open
The $ΛN$ invariant mass spectra for the reactions $K^-d\rightarrowπ^-Λp$ and $K^-d\rightarrowπ^0Λn$ are calculated for experimental study of isospin symmetry breaking in the $ΛN$ scattering at low energies, the difference in the scattering…
View article: <i>K</i> + <i>N</i> Elastic Scatterings for Estimation of the In-Medium Quark Condensate with Strange Quarks
<i>K</i> + <i>N</i> Elastic Scatterings for Estimation of the In-Medium Quark Condensate with Strange Quarks Open
We revisit the low-energy K+N elastic scatterings in the context of the in-medium quark condensate with strange quarks. The chiral ward identity connects the in-medium quark condensate to the soft limit value of the pseudoscalar correlatio…
View article: Possible scenario of dynamical chiral symmetry breaking in the interacting instanton liquid model
Possible scenario of dynamical chiral symmetry breaking in the interacting instanton liquid model Open
We compute the vacuum energy density as a function of the quark condensate in the interacting instanton liquid model (IILM) and examine the pattern of dynamical chiral symmetry breaking from its behavior around the origin. This evaluation …
View article: Search for {Θ^+} in KLp \to K+n reaction in KLF at JLab
Search for {Θ^+} in KLp \to K+n reaction in KLF at JLab Open
The possibility of the existence of multiquark hadrons made of 4-quark for mesons and 5-quark for baryons was predicted by Gell-Mann in Ref. [1]. The renewed interest for the search of exotic pentaquark states was initiated by the paper by…
View article: A Possible Solution to the Difficulty in the Interpretation of Deuteron Compositeness
A Possible Solution to the Difficulty in the Interpretation of Deuteron Compositeness Open
We study the theoretical structure of compositeness with explicit energy dependence, and find a possible explanation for the difficulty in the interpretation of compositeness of deuteron. Compositeness of deuteron is calculated as larger t…
View article: Excitation spectra of heavy baryons in a quark-diquark model with relativistic corrections
Excitation spectra of heavy baryons in a quark-diquark model with relativistic corrections Open
The excitation spectra of ${\mathrm{\ensuremath{\Lambda}}}_{c}$ and ${\mathrm{\ensuremath{\Lambda}}}_{b}$ baryons are investigated by using a quark-diquark model in which a single-heavy baryon is treated as the bound state of a heavy quark…
View article: Quark confinement for multiquark systems: Application to fully charmed tetraquarks
Quark confinement for multiquark systems: Application to fully charmed tetraquarks Open
A new color basis system and confinement mechanism for multiquark systems are proposed according to the string-type picture of QCD. The color string configurations in the strong coupling QCD are implemented in the set of color basis states…
View article: $K^+ N$ elastic scatterings for estimation of in-medium quark condensate with strange quarks
$K^+ N$ elastic scatterings for estimation of in-medium quark condensate with strange quarks Open
We revisit the low-energy $K^+N$ elastic scatterings in the context of the in-medium quark condensate with strange quarks. The chiral ward identity connects the in-medium quark condensate to the soft limit value of the pseudoscalar correla…
View article: Excitation spectra of heavy baryons in a quark-diquark model with relativistic corrections
Excitation spectra of heavy baryons in a quark-diquark model with relativistic corrections Open
The excitation spectra of Λ_c and Λ_b baryons are investigated by using a quark-diquark model in which a single-heavy baryon is treated as the bound state of a heavy quark and a scalar diquark. We take two types of relativistic corrections…
View article: Quark Confinement for Multi-Quark Systems -- Application to Fully-Charmed Tetraquarks
Quark Confinement for Multi-Quark Systems -- Application to Fully-Charmed Tetraquarks Open
A new color basis system and confinement mechanism for multi-quark systems are proposed according to the string-type picture of QCD. The color string configurations in the strong coupling QCD are implemented in the set of color basis state…
View article: Inverse mass ordering of light scalar mesons in the Nambu–Jona-Lasinio model
Inverse mass ordering of light scalar mesons in the Nambu–Jona-Lasinio model Open
The masses of the low-lying scalar mesons are investigated in the three-flavor Nambu–Jona-Lasinio (NJL) model by treating the scalar mesons as composite objects of a quark and an antiquark. It is known that a simple $\bar{q}q$ picture fail…
View article: Spectral function of the $η'$ meson in nuclear medium based on phenomenological models
Spectral function of the $η'$ meson in nuclear medium based on phenomenological models Open
The in-medium modification of the spectral function of the $η'$ meson with and without the spatial momentum is studied with the $Tρ$ approximation by employing two phenomenological models for the $η'N$ scattering; one is called coupled cha…
View article: Inverse mass ordering of light scalar mesons in the Nambu Jona-Lasinio model
Inverse mass ordering of light scalar mesons in the Nambu Jona-Lasinio model Open
The masses of the low-lying scalar mesons are investigated in the three-flavor Nambu Jona-Lasinio (NJL) model by treating the scalar mesons as composite objects of a quark and an antiquark. It is known that a simple $\bar qq$ picture fails…
View article: Excitation spectra of heavy baryons in diquark models
Excitation spectra of heavy baryons in diquark models Open
The excitation energy spectra of heavy baryons consisting of a heavy quark and two light quarks are investigated using diquark models in order to examine the nature of the diquark as a constituent of single heavy baryons. We consider two d…
View article: $K^- d\rightarrow πΛN$ reaction for studying charge symmetry breaking in the $ΛN$ interaction
$K^- d\rightarrow πΛN$ reaction for studying charge symmetry breaking in the $ΛN$ interaction Open
We discuss charge symmetry breaking in the $ΛN$ interaction. In order to investigate the $Λp$ and $Λn$ interactions at low energies, we propose to utilize the $K^-d\to π^-Λp$ and $K^-d\to π^0Λn$ reactions. They are symmetric under the exch…
View article: Systematic study of hadronic excitation energy using the Schottky anomaly
Systematic study of hadronic excitation energy using the Schottky anomaly Open
We extract the excitation energy scales of the hadron spectra in a less model-dependent method using Schottky anomaly. Schottky anomaly is a thermodynamical phenomenon that the specific heat of a system consisting of a finite number of ene…
View article: Sum rule for the partial decay rates of bottom hadrons based on the dynamical supersymmetry of the $\bar s$ quark and the $ud$ diquark
Sum rule for the partial decay rates of bottom hadrons based on the dynamical supersymmetry of the $\bar s$ quark and the $ud$ diquark Open
We investigate the weak decays of $\bar B_{s}^{0}$ and $Λ_{b}$ to charm hadrons based on the dynamical supersymmetry between the $\bar s$ quark and the $ud$ diquark. We derive a new sum rule relating the decay rates of the processes $\bar …