講座主題：Factorization and power corrections in Pion transition form factor
專(zhuān)家姓名：沈月龍
工作單位：中國(guó)海洋大學(xué)
講座時(shí)間：2018-12-14 11:00
講座地點(diǎn)：光電學(xué)院1511報(bào)告廳
主辦單位：煙臺(tái)大學(xué)光電信息科學(xué)技術(shù)學(xué)院
內(nèi)容摘要：
We reconsider factorization for the leading power contribution to the Pion transition form factor at one loop, and demonstrate the equivalence of the resulting factorization formulae derived with distinct prescriptions of Gamma5 in dimensional regularization. The Power corrections from hadronic structure suffer from endpoint singularity, we employed the light-cone QCD sum rules (LCSRs) as well as keeping transverse momentum of parton to regularize the endpoint divergence. Confronting our theoretical predictions with the experimental measurements from the BaBar and the Belle Collaborations implies that a reasonable agreement can be achieved without introducing an exotic end-point behaviour for the twist-2 pion DA.
主講人介紹：
沈月龍，男，2002年本科畢業(yè)于山東師范大學(xué)物理學(xué)院,，2007年獲中科院高能物理研究所博士學(xué)位,，現(xiàn)任中國(guó)海洋大學(xué)信息科學(xué)與工程學(xué)院副教授,，2011-2012年在臺(tái)灣中央研究院從事博士后研究工作,。主要研究量子色動(dòng)力學(xué)因子化以及冪次修正，現(xiàn)發(fā)表SCI論文30多篇,，多次在國(guó)際學(xué)術(shù)會(huì)議上做特邀報(bào)告,。
