Discrepancy and Synergy between China and the International Criminal Court

International legal scholarship pays much attention to normative interpretations of China’s stance toward international criminal justice, which contributes little to the potential synergy between the two. This article develops the current analytical framework in two ways: first by outlining the rationale behind China’s conventional critique of the ICC, namely concerning supranational jurisdiction, judicial complementarity and situations in Africa, that results in the discrepancy; secondly, it examines the shift in China’s diplomatic strategy and domestic judicial reforms, and the expanding presence in Africa that bring about an alternative approach. This article then concludes with four factors that are likely to lead to an optimal relationship between China and the ICC

Study of the quasi-two-body decays B^{0}_{s} \rightarrow \psi(3770)(\psi(3686))\pi^+\pi^- with perturbative QCD approach

In this note, we study the contributions from the S-wave resonances, f_{0}(980) and f_{0}(1500), to the B^{0}_{s}\rightarrow \psi(3770)\pi^ {+}\pi^{-} decay by introducing the S-wave \pi\pi distribution amplitudes within the framework of the perturbative QCD approach. Both resonant and nonresonant contributions are contained in the scalar form factor in the S-wave distribution amplitude \Phi^S_{\pi\pi}. Since the vector charmonium meson \psi(3770) is a S-D wave mixed state, we calculated the branching ratios of S-wave and D-wave respectively, and the results indicate that f_{0}(980) is the main contribution of the considered decay, and the branching ratio of the \psi(2S) mode is in good agreement with the experimental data. We also take the S-D mixed effect into the B^{0}_{s}\rightarrow \psi(3686)\pi^ {+}\pi^{-} decay. Our calculations show that the branching ratio of B^{0}_{s}\rightarrow \psi(3770)(\psi(3686))\pi^ {+}\pi^{-} can be at the order of 10^{-5}, which can be tested by the running LHC-b experiments.Comment: 10 pages, 3 figure

BcB_c Exclusive Decays to Charmonium and a Light Meson at Next-to-Leading Order Accuracy

In this paper the next-to-leading order (NLO) corrections to $B_c$ meson exclusive decays to S-wave charmonia and light pseudoscalar or vector mesons, i.e. $\pi$, $K$, $\rho$, and $K^*$, are performed within non-relativistic (NR) QCD approach. The non-factorizable contribution is included, which is absent in traditional naive factorization (NF). And the theoretical uncertainties for their branching ratios are reduced compared with that of direct tree level calculation. Numerical results show that NLO QCD corrections markedly enhance the branching ratio with a K factor of 1.75 for $B_{c}^{\pm}\to \eta_{c} \pi^{\pm}$ and 1.31 for $B_{c}^{\pm}\to J/\psi \pi^{\pm}$. In order to investigate the asymptotic behavior, the analytic form is obtained in the heavy quark limit, i.e. $m_b \to \infty$. We note that annihilation topologies contribute trivia in this limit, and the corrections at leading order in $z= m_c/m_b$ expansion come from form factors and hard spectator interactions. At last, some related phenomenologies are also discussed.Comment: 20 pages, 7 figures and 5 table

Research on the Risk of Local Government Special Debt Based on KMV Model: Taking A Province as an Example

Since 2015, the issuance of special bonds by local governments has experienced rapid growth. Special bonds have played a constructive role in stimulating fixed asset investment and infrastructure development, emerging as a pivotal financing mechanism for local governments. This study takes A province as a case study, compiling data on its bond issuance and employing the KMV model to calculate the anticipated default probability and overall default risk of A province's special bonds during 2023-2025. Furthermore, a comparative analysis is conducted with neighboring provinces such as C and B. The findings indicate that A province's government debt risk is generally manageable; however, there exists some level of default risk associated with special bonds. It should be noted that when considering refinancing bond issuance, the repayment of principal and interest on local government special bonds heavily relies on these refinancing instruments, temporarily reducing but not eliminating default risk. Finally, based on empirical analysis results, several policy recommendations are proposed to address the risks posed by local government debt