Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Nakamura, Satoshi X."'
Autor:
Nakamura, Satoshi X., Wu, Jia-Jun
Recent LHCb data for $B^-\to J/\psi\Lambda\bar{p}$ show a clear peak structure at the $\Xi_c\bar{D}$ threshold in the $J/\psi\Lambda$ invariant mass ($M_{J/\psi\Lambda}$) distribution. The LHCb's amplitude analysis identified the peak with the first
Externí odkaz:
http://arxiv.org/abs/2312.01989
Autor:
Wu, Jia-Jun1,2 wujiajun@ucas.ac.cn, Nakamura, Satoshi X.3,4,5 satoshi@sdu.edu.cn, Huang, Qi6 huangqi@ucas.ac.cn, Peng, Hai-Ping4,5 penghp@ustc.edu.cn, Zhang, Yan4,5 zhy02424@mail.ustc.edu.cn, Zhu, Ying-Chun4,5 yingchun@ustc.edu.cn
Publikováno v:
EPJ Web of Conferences. 9/26/2024, Vol. 303, p1-6. 6p.
Autor:
Nakamura, Satoshi X.1 satoshi@sdu.edu.cn, Wu, Jia-Jun2 wujiajun@ucas.ac.cn
Publikováno v:
EPJ Web of Conferences. 9/26/2024, Vol. 303, p1-5. 5p.
Autor:
Luo, Xuan, Nakamura, Satoshi X.
Publikováno v:
Phys.Rev.D 107 (2023) 1, L011504
Recent LHCb's amplitude analysis on $B^+\to J/\psi \phi K^+$ suggests the existence of exotic $X$ and $Z_{cs}$ hadrons, based on an assumption that Breit-Wigner resonances describe all the peak structures. However, all the peaks and also dips in the
Externí odkaz:
http://arxiv.org/abs/2207.12875
Autor:
Nakamura, Satoshi X.
Publikováno v:
Phys. Lett. B 834, 137486 (2022)
The LHCb data on $B^+\to J/\psi\phi K^+$ show four peaks and three dips in the $J/\psi\phi$ invariant mass distribution, and the peaks are interpreted as $X(4140)$, $X(4274)$, $X(4500)$ and $X(4685)/X(4700)$ resonance contributions. Interestingly, al
Externí odkaz:
http://arxiv.org/abs/2111.05115
Autor:
Nakamura, Satoshi X.
We propose a novel scenario for the peak structures, usually interpreted as hidden charm pentaquark ($P_c$) contributions, in the LHCb's $\Lambda_b^0\to J/\psi p K^-$ data. The key idea is to utilize leading or lower-order singularities from double t
Externí odkaz:
http://arxiv.org/abs/2109.03456
Autor:
Nakamura, Satoshi X.
Triangle mechanisms for $B^0\to (J/\psi\pi^+\pi^-) K^+\pi^-$ are studied. Experimentally, an $X(3872)$ peak has been observed in this process. When the final $(J/\psi\pi^+\pi^-)\pi$ invariant mass is around the $D^*\bar D^*$ threshold, one of the tri
Externí odkaz:
http://arxiv.org/abs/2105.01118
Autor:
Nakamura, Satoshi X.
Publikováno v:
Phys. Rev. D 103, 111503 (2021)
Understanding the nature of the hidden charm pentaquark(like) signals in the LHCb data for $\Lambda_b^0\to J/\psi p K^-$ is a central problem of hadron spectroscopy. We propose a scenario completely different from previous ones such as hadron molecul
Externí odkaz:
http://arxiv.org/abs/2103.06817
We discuss the possibility of extracting the neutron-neutron scattering length $a_{nn}$ and effective range $r_{nn}$ from cross section data ($d^2\sigma/dM_{nn}/d\Omega_\pi$), as a function of the $nn$ invariant mass $M_{nn}$, for $\pi^+$ photoproduc
Externí odkaz:
http://arxiv.org/abs/2003.02497
Autor:
Nakamura, Satoshi X.
Publikováno v:
Phys. Rev. D 102, 074004 (2020)
We consider a triangle diagram for $B^0\to (J/\psi\pi^+\pi^-) K^+\pi^-$ where an $X(3872)$ peak has been observed experimentally. We demonstrate that a triangle singularity inherent in the triangle diagram creates a sharp peak in the $J/\psi\pi^+\pi^
Externí odkaz:
http://arxiv.org/abs/1912.11830