Production of Tetraquark State Tcc at B-Factories

We study production of the tetraquark state T_cc via virtual photon at the B-factories in the QCD factorization framework. We predict the cross section of tetraquark state production in the leading order at the B-factories.     

非对易相空间及其狄拉克粒子电磁场中的运动

近年来,有关非对易空间的各种物理问题成为诸多学者研究的热点,并在量子力学、量子场论、量子电动力学、凝聚态物理、天体物理等各领域中被广泛探讨.本文通过非对易空间里电磁场中狄拉克粒子的哈密顿量,推导出速度算符和所受到的力算符的表达式,利用Bopp变换方法给出了电磁场作用下的狄拉克粒子在非对易空间和非对易相空间中的哈密顿量,从而推导出了速度算符和力算符的表达式,其中均包含因非对易引起的修正项.在此基础上进一步分析得出,非对易效应对狄拉克粒子的速度算符和所受到的力算符有一定的影响,但动量-动量算符的非对易性对粒子的速度算符没有影响.     

ResBos and ePump Analysis on ATLAS 8TeV Z Boson Transverse Momentum Distributions

International Journal of Theoretical Physics - Fixed-order predictions cannot describe the vector boson production process in low transverse momentum regions where resummation of soft gluon...     

QCD and electro-weak corrections to the production of Higgs+2 jets at the LHC

We present complete next-to-leading-order (NLO) QCD correction and electro-weak (EW) correction to the production cross section of Higgs-Boson in association with two hard quark jets by using Monte-Carlo numerical calculation program, HAWK, for various photon parton distribution functions at the Large Hadron Collider with center of mass energy 7, 8, 13, and 14 TeV without and with typical vector-Boson-fusion cuts on the tagging jets. In our calculation we include complete contribution from the full set of t-channel, u-channel and s-channel Feynman diagrams, and corresponding interferences as well as NLO QCD and EW corrections.     

分波振幅和耦合常数

使用有效拉氏量法,我们对五个有趣的重子衰变道提供分拨振幅（PWA）及其衰变宽度。还有,通过粒子数据表上分支比（Branching ratio）进行拟合的,我们计算了核子-核子-介子耦合常数。     

HHV和HVV耦合的有效拉氏量及费曼规则

首先包含Higgs粒子的六维算符用物理场来表示,然后给出包含HHV和HVV相互作用顶点的有效拉氏量,其中V=A,Z,W^±。最后,推导出每个六维算符和有效拉氏量的费曼规则。