BGBin Gong

Bin Gong

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

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Bin Gong has a total of 20 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    One-loop QED and weak corrections to γγ → H±H∓ in the Inert Doublet Model

    by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Qi-Shu Yan

    A bstract: We present a complete one-loop analysis of charged scalar boson pair production in photon-photon collisions, γγ → H ± H ∓ , within the framework of the Inert Doublet Model (IDM). The calculation is carried out in the on-shell renormalization scheme and incorporates both weak corrections and QED effects, including soft and hard photon radiation. Virtual loop contributions and real emission processes are computed using the Feynman diagrammatic method, ensuring the cancellation of ultraviolet and infrared divergences. To properly account for the Coulomb singularity that arises in the QED sector near threshold, we introduce the resummed cross section based on the Sommerfeld factor. The IDM parameter space is explored under theoretical consistency conditions, collider limits, and dark matter constraints, and three representative scenarios are studied in detail. We find that the magnitude of the quantum corrections is strongly controlled by the absolute value of the trilinear scalar coupling $$ {\lambda}_{h^0{H}^{+}{H}^{-}} $$ λ h 0 H + H − , which correlates with the charged scalar mass. When all constraints are applied, the weak corrections are typically in the range of −12% to −7% at $$ \sqrt{s}=250 $$ s = 250 GeV, and between −15% and 6% at $$ \sqrt{s}=500 $$ s = 500 GeV. At higher energies, such as $$ \sqrt{s}=1 $$ s = 1 TeV, the corrections can become very large, ranging from about −20% up to +60%. Our findings highlight the significant role of higher-order effects in photon-photon collisions and establish γγ → H ± H ∓ as a promising process to investigate the charged scalar sector of the IDM at future high-energy photon colliders. Several benchmark points are proposed to facilitate future experimental searches.


  • Open Access

    QCD corrections of e+e−→J/ψ+c+c¯ using the principle of maximum conformality

    by Xu-Dong Huang, Xing-Gang Wu, Xu-Chang Zheng, Bin Gong, Jian-Xiong Wang

    In this paper, we compute the total and differential cross sections for e + e − → J / ψ + c + c ¯ at the B factories up to next-to-leading order (NLO) corrections within the framework of nonrelativistic quantum chromodynamics (QCD) factorization theory. We then obtain improved perturbative QCD (pQCD) series of those cross sections by using the principle of maximum conformality (PMC). We show that the PMC can be applied for any pQCD calculable observable at the total and differential levels via a self-consistent way in perturbation theory. We observe that a more precise prompt total cross section at the NLO level can be achieved after applying the PMC, e.g., σ | prompt PMC = 0.56 5 − 0.125 + 0.144 pb . Here the uncertainty is the squared average of those from the α s fixed-point uncertainty Δ α s ( M Z ) , the uncertainty of charm quark mass Δ m c , and an estimated contribution of the uncalculated NNLO-terms as predicted by the Padé approximation approach. The differential cross sections d σ / d P J / ψ , d σ / d | cos θ | , and d σ / d z for e + e − → J / ψ + c + c ¯ are further examined. Those results show that by further considering the feed-down contributions, the PMC predictions show better agreement with the Belle measurements. Published by the American Physical Society 2024


  • Open Access

    Next-to-next-to-leading-order QCD corrections to double $J/ψ$ production at the $B$ factories

    by Xu-Dong Huang, Bin Gong, Rui-Chang Niu, Huai-Min Yu, Jian-Xiong Wang

    In this paper, we study the next-to-next-to-leading-order (NNLO) QCD corrections for the process $e^+e^- \to J/ψ+J/ψ$ at the $B$ factories. By including the NNLO corrections, the cross section turns negative due to the poor convergence of perturbative expansion. Consequently, to obtain a reasonable estimation for the cross section, the square of the amplitude up to NNLO is used. In addition, the contributions from the bottom quark and the light-by-light part, which are usually neglected, are also included. The final cross section is obtained as $1.76^{+2.42}_{-1.66} ~{\rm fb}$ at a center-of-mass energy of $\sqrt{s}=10.58$ GeV. Our result for total cross section and differential cross section could be compared with precise experimental measurement in future at the $B$ factories.

  • Open Access

    Next-to-next-to-leading-order QCD corrections to double J/ψ production at the B factories

    by Xu-Dong Huang, Bin Gong, Rui-Chang Niu, Huai-Min Yu, Jian-Xiong Wang

    In this paper, we study the next-to-next-to-leading-order (NNLO) QCD corrections for the process e + e − → J/ψ + J/ψ at the B factories. By including the NNLO corrections, the cross section turns negative due to the poor convergence of perturbative expansion. Consequently, to obtain a reasonable estimation for the cross section, the square of the amplitude up to NNLO is used. In addition, the contributions from the bottom quark and the light-by-light part, which are usually neglected, are also included. The final cross section is obtained as $$ {1.76}_{-1.66}^{+2.42} $$ 1.76 − 1.66 + 2.42 fb at a center-of-mass energy of $$ \sqrt{s} $$ s = 10.58 GeV. Our result for total cross section and differential cross section could be compared with precise experimental measurement in future at the B factories.


  • Open Access

    Full one-loop radiative corrections to $e^+ e^-\to H^+H^-$ in the inert doublet model

    by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan

    We compute the full one-loop radiative corrections for charged scalar pair production $e^{+}e^{-}\to H^{+}H^{-}$ in the inert doublet model. The on-shell renormalization scheme has been used. We take into account both the weak contributions as well as the soft and hard QED corrections. We compute both the real emission and the one-loop virtual corrections using the Feynman diagrammatic method. The resummed cross section is introduced to cure the Coulomb singularity which occurs in the QED corrections. We have analyzed the parameter space of the inert doublet model in three scenarios after taking into account theoretical constraints, the collider experimental bounds, and dark matter search bounds as well. It is found that the weak interaction dominates the radiative corrections, and its size is determined by the triple Higgs coupling $\lambda_{h^0 H^+ H^-}$, which is further connected to the mass of the charged scalar. In the scenario where all the constraints are taken into account, we find that for $\sqrt{s}=250$ GeV and $\sqrt{s}=500$ GeV, the weak corrections are around $-6\% \sim-5\%$ and $-10\% \sim -3\%$, respectively. While for $\sqrt{s}=1000$ GeV, the weak corrections can reach $-15\% \sim +25\%$. The new feature is that the weak corrections can be positive near the threshold when the charged scalar is heavier than 470 GeV. Six benchmark points for future collider searches have been proposed.

  • Open Access

    Full one-loop radiative corrections to e+e−→H+H− in the inert doublet model

    by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan

    We compute the full one-loop radiative corrections for charged scalar pair production e+e−→H+H− in the inert doublet model. The on-shell renormalization scheme has been used. We take into account both the weak contributions as well as the soft and hard QED corrections. We compute both the real emission and the one-loop virtual corrections using the Feynman diagrammatic method. The resummed cross section is introduced to cure the Coulomb singularity which occurs in the QED corrections. We have analyzed the parameter space of the inert doublet model in three scenarios after taking into account theoretical constraints, the collider experimental bounds, and dark matter search bounds as well. It is found that the weak interaction dominates the radiative corrections, and its size is determined by the triple Higgs coupling λh0H+H−, which is further connected to the mass of the charged scalar. In the scenario where all the constraints are taken into account, we find that for s=250  GeV and s=500  GeV, the weak corrections are around −6%∼−5% and −10%∼−3%, respectively. While for s=1000  GeV, the weak corrections can reach −15%∼+25%. The new feature is that the weak corrections can be positive near the threshold when the charged scalar is heavier than 470 GeV. Six benchmark points for future collider searches have been proposed.


  • Open Access

    Pair charged Higgs productions at NLO in e+ e- collider within the Inert Doublet model .

    by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan

    In this contribution, we investigate the complete electroweak one-loop radiative correction to the $e^+e^-\to H^+H^-$ within the Inert Higgs Doublet Model (IHDM), at the future Higgs factory such as the ILC, CLIC and CEPC. After taking account of the theoretical and experimental constraints such as LEP, LHC and Dark matter constraints, the calculations are performed using FeynArts/FormCalc (FA/FC) to evaluate the one-loop weak corrections and using Feynman Diagram Calculation (FDC) to compute the QED contribution to the Next-Leading-Order (NLO) cross section, in three energies of collisions 250, 500 and 1000 GeV. By observing the $e^+e^-\to H^+H^-$ process, the detection of the new physics of IHDM can be directly done due to the large production rate and the corrections are significant.

  • Open Access

    Next-to-next-to-leading-order QCD corrections to $J/ψ$ plus $η_c$ production at the $B$ factories

    by Xu-Dong Huang, Bin Gong, Jian-Xiong Wang

    In this paper, we calculate the next-to-next-to-leading-order (NNLO) QCD corrections to $e^+e^- \to J/\psi+\eta_c$ at the $B$ factories. After including the NNLO corrections, the cross section of $e^+e^- \to J/\psi+\eta_c$ is enhanced by about $17\%$, and the perturbative series of the prediction shows the convergent behavior. It is also found that the contribution from bottom quark starts at the $\alpha_s^3$-order, which is about $2.4\%$ of the total prediction. The renormalization scale $\mu_R$ dependence of the cross section is reduced at the NNLO level, but the prediction is sensitive to the charm quark mass $m_c$. By considering the uncertainties caused by renormalization scale $\mu_R$, charm quark mass $m_c$ and the NRQCD factorization scale $\mu_\Lambda$, our prediction shows agreement with the BABAR and BELLE measurements within errors.

  • Open Access

    Next-to-next-to-leading-order QCD corrections to J/ψ plus ηc production at the B factories

    by Xu-Dong Huang, Bin Gong, Jian-Xiong Wang

    In this paper, we calculate the next-to-next-to-leading-order (NNLO) QCD corrections to e+e− → J/ψ + ηc at the B factories. After including the NNLO corrections, the cross section of e+e−→ J/ψ +ηc is enhanced by about 17%, and the perturbative series of the prediction shows the convergent behavior. It is also found that the contributions from bottom quark starts at the $$ {\alpha}_s^3 $$ α s 3 -order, which is about 2.4% of the total prediction. The renormalization scale μR dependence of the cross section is reduced at the NNLO level, but the prediction is sensitive to the charm quark mass mc. By considering the uncertainties caused by renormalization scale μR, charm quark mass mc and the NRQCD factorization scale μΛ, our prediction shows agreement with the BABAR and BELLE measurements within errors.


  • Open Access

    New approach for amplitudes with multiple fermion lines *

    by Feng Zhang, Bin Gong, Jian-Xiong Wang

    A new approach for tree-level amplitudes with multiple fermion lines is presented. It primarily focuses on the simplification of fermion lines. By calculating two vectors recursively without any matrix multiplications, the result of a fermion line is reduced to a very compact form depending only on the two vectors. Comparisons with other packages are presented, and the results show that our package FDC provides a very good performance in the processes of multiple fermion lines with this new approach and some other improvements. A further comparison with WHIZARD shows that this new approach has a competitive efficiency in computing pure amplitude squares without phase space integration.