J P Dai

Dual-branch Spatial-Temporal Self-supervised Representation for Enhanced Road Network Learning

Qinghong Guo, Yu Wang, Ji Cao, Tongya Zheng et autres

Road network representation learning (RNRL) has attracted increasing attention from both researchers and practitioners as various spatiotemporal tasks are emerging. Recent advanced methods leverage Graph Neural Networks (GNNs) and contrastive learning to characterize the spatial structure of road segments in a self-supervised …

cn, sg (code pays fourni par la source)

Study of the f0(980) and f0(500) Scalar Mesons through the Decay Ds+→π+π−e+νe

М. Н. Ачасов, P. Adlarson, R. Aliberti, A. Amoroso et autres

Using e^{+}e^{-} collision data corresponding to an integrated luminosity of 7.33 fb^{-1} recorded by the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we present an analysis of the decay D_{s}^{+}→π^{+}π^{-}e^{+}ν_{e}, where the D_{s}^{+} is produced via the process e^{+}e^{-}→D_{s}^{*±}D_{s}^{∓}. …

cn, ru, se, de, it, pl, mn, us, tr, kr, gb (code pays fourni par la source)

First Measurement of the Decay Asymmetry in the Pure W -Boson-Exchange Decay Λc+→Ξ0K+

М. Н. Ачасов, P. Adlarson, X. Ai, R. Aliberti et autres

Based on 4.4 fb^{-1} of e^{+}e^{-} annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with the BESIII detector at the BEPCII collider, the pure W-boson-exchange decay Λ_{c}^{+}→Ξ^{0}K^{+} is studied with a full angular analysis. The corresponding decay asymmetry …

cn, ru, se, de, it, pl, mn, us, tr, kr, gb (code pays fourni par la source)

Complete Measurement of the Λ Electromagnetic Form Factors

М. Н. Ачасов, P. Adlarson, S. Ahmed, M. Albrecht et autres

The exclusive process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{\ensuremath{\Lambda}}\overline{\mathrm{\ensuremath{\Lambda}}}$, with $\mathrm{\ensuremath{\Lambda}}\ensuremath{\rightarrow}p{\ensuremath{\pi}}^{\ensuremath{-}}$ and $\overline{\mathrm{\ensuremath{\Lambda}}}\ensuremath{\rightarrow}\overline{p}{\ensuremath{\pi}}^{+}$, has been studied at $\sqrt{s}=2.396\text{ }\text{ }\mathrm{GeV}$ for measurement of the timelike $\mathrm{\ensuremath{\Lambda}}$ electric and magnetic form factors, ${G}_{E}$ and ${G}_{M}$. A data sample, corresponding to an integrated luminosity of $66.9\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$, was …

cn, ru, se, de, it, mn, us, tr, gb (code pays fourni par la source)

Measurements of the mass and width of the $\eta_c$ using the decay $\psi(3686)\rightarrow\gamma\eta_c$

F. De Mori, М. Н. Ачасов, Diego Alberto, D. Ambrose et autres

The mass and width of the lowest-lying $S$-wave spin singlet charmonium state, the $η_c$, are measured using a data sample of $1.06×10^8 ψ(3686)$ decays collected with the BESIII detector at the BEPCII storage ring. We use a model that incorporates full interference …