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(xué)
講座時(shí)間：2022年5月27日 14:30-16:00
講座地點(diǎn)：騰訊會(huì)議：460-210-649
主辦單位：煙臺(tái)大學(xué)物理與電子信息學(xué)院
內(nèi)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(xué)教授,，省特聘教授，博士生導(dǎo)師,。2010年畢業(yè)于河南師范大學(xué)獲博士學(xué)位,；2010-2013在華中師范大學(xué)粒子所進(jìn)行博士后研究,；2016–2017在美國(guó)斯坦福大學(xué)SLAC國(guó)家實(shí)驗(yàn)室從事訪問(wèn)學(xué)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(jì)算、光前量子化等,。入選教育部“長(zhǎng)江學(xué)者獎(jiǎng)勵(lì)計(jì)劃”青年學(xué)者,、河南省杰青，獲“全國(guó)優(yōu)秀博士學(xué)位論文獎(jiǎng)”,、河南省青年科技獎(jiǎng)等,。
