1. IE browser is NOT supported anymore. Please use Chrome, Firefox or Edge instead.
2. If you are a new user, please register to get an Indico account through https://login.ihep.ac.cn/registIndico.jsp. Any questions, please email us at helpdesk@ihep.ac.cn or call 88236855.
3. If you need to create a conference in the "Conferences, Workshops and Events" zone, please email us at helpdesk@ihep.ac.cn.
4. The max file size allowed for upload is 50 Mb.

Factorization for weak annihilation B-meson decays

Aug 10, 2022, 9:45 AM
Oral report 强子物理与味物理 Parallel Session III (2):Hadron and Flavor Physics


Prof. Yu-Ming Wang (Nankai University)


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.

Primary author

Prof. Yu-Ming Wang (Nankai University)

Presentation materials

There are no materials yet.