T. Sekihara

activity

20082026

most citedMulti-quark hadrons from Heavy Ion Collisions

155 citations · 1.7k across the 61 of their papers we have counts for

collaborators

Showing 2015Show all

5 papers · 1 filter

hep-ph2015★ 39 cited

Compositeness of baryonic resonances: Applications to the Delta(1232), N(1535), and N(1650) resonances

Takayasu Sekihara, Takashi Arai, Junko Yamagata-Sekihara +1

We present a formulation of the compositeness for baryonic resonances in order to discuss the meson-baryon molecular structure inside the resonances. For this purpose, we derive a…

hep-ph2015★ 1 cited

Compositeness of the Delta(1232) resonance in pi N scattering

Takayasu Sekihara, Takashi Arai, Junko Yamagata-Sekihara +1

We evaluate the $π N$ compositeness of the $Δ (1232)$ resonance so as to clarify the internal structure of $Δ (1232)$ in terms of the $π N$ component. Here the compositeness is defined…

hep-ph2015★ 54 cited

Investigating the nature of light scalar mesons with semileptonic decays of D mesons

Takayasu Sekihara, Eulogio Oset

We study the semileptonic decays of $D_{s}^{+}$ , $D^{+}$ , and $D^{0}$ mesons into the light scalar mesons [ $f_{0} (500)$ , $K_{0}^{*} (800)$ , $f_{0} (980)$ , and $a_{0} (980)$ ] and…

hep-ph2015★ 24 cited

$Ξ (1690)$ as a $K ˉ Σ$ molecular state

Takayasu Sekihara

We show that a $Ξ^{*}$ pole can be dynamically generated near the $K ˉ Σ$ threshold as an $s$ -wave $K ˉ Σ$ molecular state in a coupled-channels unitary approach with th…

hep-ph2015★ 44 cited

Testing the molecular nature of $D_{s 0}^{} (2317)$ and $D_{0}^{} (2400)$ in semileptonic $B_{s}$ and $B$ decays

F. S. Navarra, M. Nielsen, E. Oset +1

We study the semileptonic $B_{s}$ and $B$ decays into the $D_{s 0}^{*} (2317)$ and $D_{0}^{*} (2400)$ resonances, respectively. With the help of a chiral unitarity model in cou…