Zhao Li

TL;DR: In this article, the authors extract new parton distribution functions (PDFs) of the proton by global analysis of hard scattering data in the general-mass framework of perturbative quantum chromodynamics.

TL;DR: In this paper, the dependence of parton distribution functions (PDFs) on the value of the QCD coupling strengths (MZ) was examined and a simple method that is rigorously valid in the quadratic approximation normally applied in PDF fitting, and fully reproduces the correlated dependence of theoretical cross sections ons and PDF parameters was presented.

TL;DR: The second volume of the CEPC Conceptual Design Report (CDR) as discussed by the authors describes the physics case for the proposed CEPC, describes conceptual designs of possible detectors and their technological options, highlights the expected detector and physics performance, and discusses future plans for detector R&D and physics investigations.

TL;DR: A novel development in jet physics is provided by predicting the energy profiles of light-quark and gluon jets in the framework of perturbative QCD, and the predicted peak positions and heights in jet mass distributions are consistent with CDF data within uncertainties induced by parton distribution functions.

TL;DR: In this article, two experiment campaigns were conducted on the HL-2A tokamak in 2003 and 2004 after the first plasma was obtained at the end of 2002, and the following operation parameters have been achieved: Ip = 320 kA, Bt = 2.2 T and discharge duration Td = 1580 ms.