Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Nakamura Satoshi X."'
Autor:
Nakamura Satoshi X., Wu Jia-Jun
Publikováno v:
EPJ Web of Conferences, Vol 303, p 01019 (2024)
Recent LHCb data for B− → J/ψΛp¯ show a clear peak structure at the ΞcD¯ threshold in the J/ψ invariant mass (MJ/ψΛ) distribution. In their amplitude analysis, LHCb identified the peak with the first hidden-charm pentaquark with strangene
Externí odkaz:
https://doaj.org/article/62a3932040b243baa879e67d08750fbc
Publikováno v:
EPJ Web of Conferences, Vol 303, p 01026 (2024)
The new BESIII data on J/ψ → γη(1405/1475) → γKK¯π is more precise than before. A three-body unitary coupled-channel analysis of experimental Monte Carlo outputs for J/ψ → γη(1405/1475) → γKK¯π is introduced. This model does not o
Externí odkaz:
https://doaj.org/article/8e8c0a5c94754013bbc24bfb42162271
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:
Nakamura, Satoshi X.1 (AUTHOR) satoshi@sdu.edu.cn, Wu, Jia-Jun2 (AUTHOR) 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