论文标题
增强了近代级的校正较弱的an灭$ b $ -Meson衰减
Enhanced Next-to-Leading-Order Corrections to Weak Annihilation $B$-Meson Decays
论文作者
论文摘要
我们完成了纯弱an灭非leptonic $ b $ -meson衰减幅度的分析计算，该计算在重型夸克扩张中的领先力量方面进行了分析。关于这种基本耐药量的新颖观察结果是，在硬gluon交换效应之上添加缺失的硬性贡献消除了进入分解公式的卷积积分的速度差异。随后，由于当前流动运营商的企鹅收缩，我们从弱有效的汉密尔顿人的企鹅收缩引起的企鹅收缩引起的扰动增强机制，这对违反CP违反CP的可观察结果产生了重大影响。
We accomplish the analytical computation of the pure weak annihilation non-leptonic $B$-meson decay amplitudes at leading power in the heavy quark expansion. The novel observation regarding such fundamental hadronic quantities is that adding the missing hard-collinear contribution on top of the hard gluon exchange effect eliminates rapidity divergences entering the convolution integrals of factorization formulae. Subsequently we identify the perturbative enhancement mechanism due to the penguin contractions of the current-current operators from the weak effective Hamiltonian, which yields the significant impacts on the CP violating observables.
