29 October 2025 to 2 November 2025
河南省新乡市 (Xinxiang, Henan)
Asia/Shanghai timezone

Observation of the rare baryonic decay B->p Lambda_bar and measurement of the weak decay parameter

30 Oct 2025, 17:00
20m
平原AB厅

平原AB厅

Theory Parallel 4

Speaker

淦蓉 王 (CCNU)

Description

Charmless two-body B-meson decays to baryon-antibaryon pairs serve as key probes for strong interaction dynamics and CP violation but remain underexplored. This is the first observation of the rare baryonic decay B->p Lambda_bar. The significantly improved branching fraction measurement and the first measurement of the weak decay parameter in this work are of great interests for testing theoretical calculations and understanding the properties of other charmless baryonic B decays.

Primary authors

Jiesheng Yu (88236572) Yuehong Xie (Central China Normal University) 淦蓉 王 (CCNU)

Presentation materials