Zobrazeno 1 - 10
of 2 101
pro vyhledávání: '"Yasui S"'
Autor:
Kato, S., Nakajima, N., Yasui, S., Yasuhara, S., Fu, D., Adachi, J., Nitani, H., Takeichi, Y., Anspoks, A.
Publikováno v:
Acta Materialia (2021)
For the first time, the dielectric response of a BaTiO3 thin film under an AC electric field is investigated using time-resolved X-ray absorption spectroscopy at the Ti K-edge to clarify correlated contributions of each constituent atom on the electr
Externí odkaz:
http://arxiv.org/abs/2101.12483
Publikováno v:
EPJ Web of Conferences, Vol 3, p 07013 (2010)
We discuss the possibility of existence of exotic nuclei containing charm and bottom mesons. We study the interaction between $ar{D}$ (B) mesons and nucleons from view of heavy quark symmetry, and derive the one pion exchange potentials. We apply the
Externí odkaz:
https://doaj.org/article/07ad9bc7267b48db98d67357aeb08d02
Autor:
Yasui, S.
Publikováno v:
Phys. Rev. D91, 014031 (2015)
Transition decay widths by one-pion emissions for excited heavy-baryons with a single heavy (charm and bottom) quark are investigated by following the heavy-quark symmetry and its breaking effects at ${\cal O}(1/M)$ for a heavy-baryon mass $M$. Based
Externí odkaz:
http://arxiv.org/abs/1408.3703
Publikováno v:
Phys. Rev. D 91, 034034 (2015)
We discuss the properties of hadronic systems containing one heavy quark in the heavy quark limit. The heavy quark symmetry guarantees the mass degeneracy of the states with total spin and parity $(j-1/2)^{P}$ and $(j+1/2)^{P}$ with $j \geq 1/2$, bec
Externí odkaz:
http://arxiv.org/abs/1402.5222
Publikováno v:
Phys. Rev. C 89, 015201 (2014)
We consider heavy mesons with charm and bottom in nuclear medium. We construct the effective Lagrangian with axial-vector coupling including 1/M-corrections for the heavy meson mass $M$ by following the velocity-rearrangement invariance. As an applic
Externí odkaz:
http://arxiv.org/abs/1308.0098
Publikováno v:
Phys. Lett. B727 (2013) 185
We study multi-hadron systems with a single heavy quark (charm or bottom) in the limit of heavy quark mass. The spin degeneracy of the states with quantum numbers $(j+1/2)^{P}$ and $(j-1/2)^{P}$ for $j \neq 0$, known in a normal hadron, can be genera
Externí odkaz:
http://arxiv.org/abs/1304.5293
Autor:
Ohnishi, A., Cho, S., Furumoto, T., Hyodo, T., Jido, D., Ko, C. M., Morita, K., Lee, S. H., Nielsen, M., Sekihara, T., Yasui, S., Yazaki, K.
We discuss the exotic hadron structure and hadron-hadron interactions in view of heavy ion collisions. First, we demonstrate that a hadronic molecule with a large spatial size would be produced more abundantly in the coalescence model compared with t
Externí odkaz:
http://arxiv.org/abs/1301.7261
Publikováno v:
Phys. Rev. C88, 015201 (2013)
We discuss the dynamics in finite density medium including a heavy impurity particle (hadron or quark) with a heavy flavor, charm and bottom, at zero temperature. As a system, we consider a $\bar{D}$ ($B$) meson embedded in nuclear matter as a heavy
Externí odkaz:
http://arxiv.org/abs/1301.6830
We study heavy hadron spectroscopy near heavy meson thresholds. We employ heavy pseudoscalar meson P and heavy vector meson P* as effective degrees of freedom and consider meson exchange potentials between them. All possible composite states which ca
Externí odkaz:
http://arxiv.org/abs/1209.0144
Publikováno v:
Phys. Rev. C87, 015202 (2013)
We discuss the mass modifications of $\bar{\mathrm{D}}$ and $\bar{\mathrm{D}}^{\ast}$ ($\mathrm{B}$ and $\mathrm{B}^{\ast}$) mesons in nuclear medium. The heavy quark symmetry for $\bar{\mathrm{D}}$ and $\bar{\mathrm{D}}^{\ast}$ ($\mathrm{B}$ and $\m
Externí odkaz:
http://arxiv.org/abs/1207.3134