講座主題：Aself-consistent light-front quark model and its application in B decays
專家姓名：常欽
工作單位：河南師范大學
講座時間：2022年5月27日 14:30-16:00
講座地點：騰訊會議：460-210-649
主辦單位：煙臺大學物理與電子信息學院
內容摘要：
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.
主講人介紹：
常欽，河南師范大學教授，省特聘教授，博士生導師。2010年畢業于河南師范大學獲博士學位；2010-2013在華中師范大學粒子所進行博士后研究；2016–2017在美國斯坦福大學SLAC國家實驗室從事訪問學者研究。從事粒子物理理論研究工作，主要興趣集中于重味物理、新物理唯象、微擾QCD計算、光前量子化等。入選教育部“長江學者獎勵計劃”青年學者、河南省杰青，獲“全國優秀博士學位論文獎”、河南省青年科技獎等。
