论文标题

NLO QCD校正为伪库夸昆顿产生,并在光子粉状碰撞中具有两种重型口味

NLO QCD corrections to pseudoscalar quarkonium production with two heavy flavors in photon-photon collision

论文作者

Yang, Hao, Chen, Zi-Qiang, Qiao, Cong-Feng

论文摘要

我们将次要领先顺序(NLO)量子染色体动力学(QCD)校正为$γ+γ\toη_c+c+c+c+\ bar {c} $,$γ+γ\toη_b+b+b+b+b+b+b+\ bar {b} $ QCD(NRQCD)分解形式主义。评估了SuperkekB电子峰值对撞机的横截面以及未来的对撞机,例如圆形电子正电子对撞机(CEPC)。数值结果表明NLO校正是显着的,并且根据预期,具有NLO校正的理论预测中的不确定性。由于Superkekb对撞机的高光度,希望在不久的将来可以观察到$η_C+C+\ bar {C} $生产。

We calculate the next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to $γ+γ\to η_c+c+\bar{c}$, $γ+γ\to η_b+b+\bar{b}$ and $γ+γ\to B_c+b+\bar{c}$ processes in the framework of non-relativistic QCD (NRQCD) factorization formalism. The cross sections at the SuperKEKB electron-positron collider, as well as the future collider like the Circular Electron Positron Collider (CEPC), are evaluated. Numerical results indicate that the NLO corrections are significant, and the uncertainties in theoretical predictions with NLO corrections are reduced as expected. Due to the high luminosity of the SuperKEKB collider, the $η_c+c+\bar{c}$ production is hopefully observable in the near future.

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