论文标题
对$ j/ψ\ rightarrow p \ bar {p} $ decay的相对论更正的研究
A study of relativistic corrections to $ J/ψ\rightarrow p\bar{p}$ decay
论文作者
论文摘要
我们研究了独家$ s $ - 波炭腐烂的相对论校正，质子 - 抗蛋白质最终状态。我们将NRQCD校正计算为显性衰减幅度，该振幅仅取决于核子Twist-3灯锥分布振幅。结果表明，在这种情况下，共线性分解也超出了领先近似值。我们的数值估计表明，相对校正相对顺序$ v^2 $提供了巨大的数值影响。
We study relativistic corrections in exclusive $S$-wave charmonium decays into proton-antiproton final state. We calculate the NRQCD corrections to the dominant decay amplitude, which depend on the nucleon twist-3 light-cone distribution amplitudes only. It is shown that in this case the collinear factorisation is also valid beyond the leading-order approximation. Our numerical estimates show that relativistic correction of relative order $v^2$ provides large numerical impact.
