Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Ren Xiu-Lei"'
Autor:
Ren Xiu-Lei
Publikováno v:
EPJ Web of Conferences, Vol 291, p 01014 (2024)
The current status of muon 𝑔 − 2 is briefly reviewed, particularly for its hadronic contributions, hadronic vacuum polarization (HVP) and hadronic light-by-light (HLbL), using the data-driven and dispersive approach. As the subprocess of HLbL, t
Externí odkaz:
https://doaj.org/article/e75ac05a9d63410dbbca8bf98ccd4f52
In view of the recent discovery of $T_{cc}$, which can be described as a $DD^*$ molecular state, we perform a study of the $KDD^*$ system, and its extension to studying $KD^*D^*$, where $D^*D^*$ is bound as a spin 1 $T_{cc}$-like state, to search for
Externí odkaz:
http://arxiv.org/abs/2409.16281
Motivated by the ongoing analysis by the BESIII Collaboration on the single-tagged $e^+e^-\to e^+e^- \eta \pi^+\pi^-$ reaction, we present a phenomenological study of the diphoton fusion to $\eta \pi^+ \pi^-$, focusing on the production mechanism of
Externí odkaz:
http://arxiv.org/abs/2409.07235
Autor:
Ren, Xiu-Lei
We present the light-quark mass dependence of the $\Lambda(1405)$ resonance at leading order in a renormalizable framework of covariant chiral effective field theory. The meson-baryon scattering amplitudes, which are obtained by solving the scatterin
Externí odkaz:
http://arxiv.org/abs/2404.02720
Autor:
Ren Xiu-Lei
Publikováno v:
EPJ Web of Conferences, Vol 271, p 07008 (2022)
We investigated the meson-baryon scattering using time-order perturbation theory (TOPT) based on covariant chiral effective field theory. The effective potential is defined as the sum of two-particle irreducible contributions of time-ordered diagrams
Externí odkaz:
https://doaj.org/article/a5c47f41f4c7469cabb8c3a73a62d671
We present a phenomenological study of the $\gamma\gamma^*\to K\bar{K}^*(892)$ process by including the $s$-channel production of the $\eta(1475)$ and $f_1(1420)$ resonances. The non-resonant channel via $K$- and $K^*$-exchanges is investigated caref
Externí odkaz:
http://arxiv.org/abs/2403.05091
In this proceeding, we illustrate the applicability of a new parameterization of the S-wave amplitude on the example of the $\pi\pi \to \pi\pi$ and $\pi K \to \pi K $ lattice data ($m_\pi \sim 240$ MeV) from the HadSpec collaboration. The applied par
Externí odkaz:
http://arxiv.org/abs/2302.08443
Publikováno v:
Phys. Rev. D 107, 054037 (2023)
We present a phenomenological model for the $\gamma\gamma \to \pi^+\pi^-\pi^0$ reaction by including the production mechanism of the $a_2(1320)$ resonance, as well as the contributions from the $\sigma/f_0(500)\, \pi^0$ and $f_2(1270)\, \pi^0 $ produ
Externí odkaz:
http://arxiv.org/abs/2212.03086
In this paper, we present an improved parameterization of the elastic scattering of spin-0 particles, which is based on a dispersive representation for the inverse scattering amplitude. Besides being based on well known general principles, the requir
Externí odkaz:
http://arxiv.org/abs/2206.15223
In this talk we present a summary of our latest results on the investigation of three-body systems with explicit/hidden charm and with explicit/hidden strangeness. To be more concrete, in case of explicit strangeness quantum number, we pay attention
Externí odkaz:
http://arxiv.org/abs/2205.01195