三元名家论坛:A self-consistent light-front quark model and its application in B decays

作者:xxb时间:2022-05-27

讲座主题:Aself-consistent light-front quark model and its application in B decays

专家姓名:常钦

工作单位:河南师范大学

讲座时间:2022年5月27日 14:30-16:00

讲座地点:腾讯会议:460-210-649

主办单位:卡塔尔世界杯官方网站

内容摘要:

The heavy hadron EW decay plays an important role in testing the Standard Model, searching for the indirect hint of new physics and investigating the feature of hadron. The decay constant, form factor and distribution amplitude are crucial nonperturbative inputs for evaluating heavy hadron EW decay. The standard light-front (SLF) and the covariant light-front (CLF) quark models provide conceptually simple and phenomenologically feasible frameworks for calculating these quantities. In this talk, the self-consistence and strict covariance problems of CLF approach are discussed, and a possible solution is tested. Then, based on a self-consistent CLF framework, some rare decays (for instance, semileptonic and nonleptonic decay of heavy vector mesons, B->Tlv and B->K^*_0(1430)M decay, et al.) are investigated.

主讲人介绍:

常钦,河南师范大学教授,省特聘教授,博士生导师。2010年毕业于河南师范大学获博士学位;2010-2013在华中师范大学粒子所进行博士后研究;2016–2017在美国斯坦福大学SLAC国家实验室从事访问学者研究。从事粒子物理理论研究工作,主要兴趣集中于重味物理、新物理唯象、微扰QCD计算、光前量子化等。入选教育部“长江学者奖励计划”青年学者、河南省杰青,获“全国优秀博士学位论文奖”、河南省青年科技奖等。

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