Japan College of Social Work

output

20002024

most citedHeavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners

90 citations

23 papers

hep-ph2024★ 3 cited

X(3872) revisited: the roles of OPEP and the quark degrees of freedom

Sachiko Takeuchi, Yasuhiro Yamaguchi, Atsushi Hosaka +1

The $X (3872)$ is investigated by employing the quark-hadron hybrid model, that consists of the $c c ˉ$ core, $D^{(*)} D ˉ^{*}$ , $J / ψ ω$ , and $J / ψ ρ$ two-meson states. Due to the…

hep-ph2024

The impact of quark many-body effects on exotic hadrons

Sachiko Takeuchi, Makoto Takizawa, Yasuhiro Yamaguchi +1

We investigate the exotic hadrons consisting of two light quarks and two heavy antiquarks, $(q Q ˉ)$ - $(q Q ˉ)$ . The spin-dependent term between quarks is known to give an attra…

hep-ph2022★ 9 cited

Substructure of Multiquark Hadrons (Snowmass 2021 White Paper)

Nora Brambilla, Hua-Xing Chen, Angelo Esposito +27

In recent years there has been a rapidly growing body of experimental evidence for existence of exotic, multiquark hadrons, i.e. mesons which contain additional quarks, beyond the…

hep-ph2019★ 90 cited

Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners

Yasuhiro Yamaguchi, Atsushi Hosaka, Sachiko Takeuchi +1

We discuss selected and important features of hadronic molecules as one of promising forms of exotic hadrons near thresholds. Using examples of $D D ˉ^{*}$ systems such as $X(3872…

hep-ph2019★ 80 cited

$P_{c}$ pentaquarks with chiral tensor and quark dynamics

Yasuhiro Yamaguchi, Hugo Garcia-Tecocoatzi, Alessandro Giachino +4

We investigate the hidden-charm pentaquarks as superpositions of $Λ_{c} D ˉ^{(*)}$ and $Σ_{c}^{(*)} D ˉ^{(*)}$ (isospin $I = 1/2$ ) meson-baryon channels coupled to a $uudc\bar{…

hep-ph2017★ 68 cited

Hidden-charm and bottom meson-baryon molecules coupled with five-quark states

Yasuhiro Yamaguchi, Alessandro Giachino, Atsushi Hosaka +3

In this paper, we investigate the hidden-charm pentaquarks as $D ˉ^{(*)} Λ_{c}$ and $D ˉ^{(*)} Σ_{c}^{(*)}$ molecules coupled to the five-quark states. Furth…