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10–14 Nov 2021
暨南大学
Asia/Shanghai timezone

Λb→pK decay in the perturbative QCD

Not scheduled
15m
暨南大学

暨南大学

Speakers

亚 李 (Nanjing Agricultural University) Mr 佳杰 韩 (Nanjing Normal University)

Description

We improved the framework of the perturbative QCD (PQCD) approach and calculated the branching ratio and direct CP violation of $\Lambda_b\to pK$ decay. We concentrate on the contributions beyond leading power, and find that the higher power corrections are much more important compared with the leading power in the decay of heavy baryon. Power counting is valid in the case of infinite scale, while practical calculations are performed under finite scale, such as $m_b$ scale. This causes a situation that enhancements from end-point regions of high-twist LCDAs may overcome the power suppression.
Presentation type Oral

Primary authors

亚 李 (Nanjing Agricultural University) Mr 佳杰 韩 (Nanjing Normal University)

Co-authors

Prof. Fu-Sheng Yu (Lanzhou University) Prof. 振军 肖 (Nanjing Normal University)

Presentation materials

There are no materials yet.