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17–18 Dec 2024
Tsung-Dao Lee Institute
Asia/Shanghai timezone

BESIII上(奇)粲介子弱衰变研究

Not scheduled
20m
Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall (Tsung-Dao Lee Institute)

Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall

Tsung-Dao Lee Institute

TDLI, 1 Lisuo Road, Zhangjiang Campus, Pudong New Area, Shanghai, China
200
Oral Talk 口头报告

Speaker

chen xie (南京大学)

Description

粲介子与奇异粲介子是其介子家族的基态粒子,其衰变只能通过弱作用改变其味道,我们将介绍奇异粲介子纯轻衰变的研究,因其夸克对湮灭成W玻色子,强弱作用直接分离,成为天然的抽取CKM矩阵元的衰变道[PhysRevD.108.092014],同时将介绍粲介子半轻衰变研究,与纯轻衰变相比,半轻末态中存在强子参与,微分跃迁率依赖于W带走的动量,再考虑末态强子自旋信息,我们抽取了强子化形状因子,并对角分布系数的不对称性进行测量[内部draft阶段]。

Primary author

chen xie (南京大学)

Presentation materials